USRE43282EExpiredUtilityPatentIndex 98
Assessing the condition of a joint and devising treatment
Est. expirySep 14, 2018(expired)· nominal 20-yr term from priority
A61B 5/055A61B 5/1127A61B 5/1122A61B 5/1038A61B 5/1121A61B 5/7257G09B 23/30A61B 5/4514A61B 5/4528A61B 5/103A61B 5/112
98
PatentIndex Score
209
Cited by
1,095
References
140
Claims
Abstract
Methods are disclosed for assessing the condition of a cartilage in a joint, particularly in a human knee. The methods include converting an image such as an MRI to a three dimensional map of the cartilage. The cartilage map can be correlated to a movement pattern of the joint to assess the affect of movement on cartilage wear. Changes in the thickness of cartilage over time can be determined so that therapies can be provided. Information on thickness of cartilage and curvature of cartilage or subchondral bone can be used to plan therapy. Information on movement pattern can be used to plan therapy.
Claims
exact text as granted — not AI-modified1. A method of treating a human joint disease involving cartilage comprising:
obtaining electronic image data of a joint, wherein said image data includes both normal and diseased cartilage tissue;
electronically evaluating in three dimensions said image data to obtain information about geometry of the joint, said electronically evaluating including evaluating the joint along one or more vectors tangent or perpendicular to the cartilage or bone surface; and
selecting a therapy based on said three-dimensional evaluation.
2. The method of claim 1 , wherein said electronically evaluating further comprises:
estimating the loss of cartilage in a joint, wherein the joint comprises cartilage and accompanying bones on either side of the joint, which method comprises,
obtaining a three-dimensional representation of the cartilage at an initial time and calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the initial time,
obtaining a three-dimensional representation of the cartilage at a later time,
calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the later time, and
determining the loss in thickness or regional volume of the region of degenerated cartilage between the later and initial times.
3. The method of claim 1 , wherein said electronically evaluating further comprises:
assessing the condition of cartilage in a joint of a human, which method comprises,
electronically transferring an electronically generated image of a cartilage of the joint from a transferring device to a receiving device located distant from the transferring device,
receiving the transferred image at the distant location,
converting the transferred image to a degeneration pattern of the cartilage, and
transmitting the degeneration pattern to a site for analysis.
4. The method of claim 1 , wherein said electronically evaluating further comprises:
determining the volume of cartilage loss in a region of a cartilage defect of a cartilage in a joint of a mammal which method comprises,
determining the thickness, D N , of the normal cartilage near the cartilage defect,
obtaining the thickness of the cartilage defect, D D , of the region,
subtracting D D from D N to give the thickness of the cartilage loss, D L , and
multiplying the D L value times the area of the cartilage defect, A D , to give the volume of cartilage loss.
5. The method of claim 1 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint of a mammal over time, which method comprises,
estimating the thickness or width or area or volume of a region of cartilage at an inital time T 1 ,
estimating the thickness or width or area or volume of the region of cartilage at an later time T 2 , and
determining the change in the thickness or width or area or volume of the region of cartilage between the initial and the later times.
6. The method of claim 1 , wherein said electronically evaluating further comprises:
providing a biochemically based representation of joint cartilage of a mammal, wherein the joint comprises cartilage and associated bones on either side of the joint, which method comprises,
measuring a detectable biochemical component throughout the cartilage,
determining the relative amounts of the biochemical component throughout the cartilage,
evaluating the amounts of the biochemical component in three dimensions through the cartilage, and
determining the area of abnormally joint cartilage by identifying the areas having altered amounts of the biochemical component present.
7. The method of claim 1 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint, wherein the joint comprises articular cartilage, which method comprises,
defining a 3D object coordinate system of the joint at an initial time, T 1 ,
identifying a region of a cartilage defect within the 3D object coordinate system,
defining a volume of interest around the region of the cartilage defect whereby the volume of interest is larger than the region of cartilage defect, but does not encompass the entire articular cartilage,
defining the 3D object coordinate system of the joint at a second timepoint, T 2 ,
placing the identically-sized volume of interest into the 3D object coordinate system at timepoint T 2 using the object coordinates of the volume of interest at timepoint T 1 , and
measuring any differences in cartilage volume within the volume of interest between timepoints T 1 and T 2 .
8. The method of claim 1 , wherein said electronically evaluating further comprises:
correlating cartilage image data, bone image data, and optoelectrical image data for the assessment of the condition of a joint, which method comprises,
(a) obtaining the cartilage image data of the joint with a set of skin reference markers placed externally near the joint,
(b) obtaining the bone image data of the joint with a set of skin reference markers positioned in the same manner as the markers in (a),
(c) obtaining the optoelectrical image data of the joint with a set of skin reference markers positioned in the same manner as (a) and (b), and
(d) using the skin reference markers to correlate the images obtained in (a), (b) and (c) with each other, wherein each skin reference marker is detectable in the cartilage and bone data and the opto-electrical data.
9. The method of claim 1 , wherein said electronic image data provides information on the thickness, shape, or curvature of said normal and said diseased tissue or the location and size of said diseased tissue.
10. The method claim 1 , wherein said therapy comprises autologous chondrocyte transplantation, osteochondral allografting, osteochondral autografting, an implant, a replacement material, a scaffold, a regenerating material, a repair system, tibial corticotomy, femoral osteotomy or tibial osteotomy.
11. The method of claim 1 , wherein said therapy uses cartilage or bone tissue grown ex vivo, stem cells, an artificial non-human material, an agent that stimulates repair of said diseased tissue, or an agent.
12. The method of claim 1 , wherein said information is used to determine the thickness or other geometrical feature of a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold, or a tissue regenerating material or tissue repair system.
13. The method of claim 1 , wherein said image is obtained using ultrasound, computed tomography, positron emission tomography, a single photon emission computed tomography scan, or MRI.
14. The method of claim 13 , wherein said information is used to generate a three-dimensional representation of cartilage thickness or a physical model of said normal or said diseased tissue or both.
15. The method of claim 14 , wherein said physical model is used to shape a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold or a tissue regenerating material or tissue repair system.
16. A method of treating a human joint disease involving cartilage comprising:
obtaining electronic image data of a joint, wherein said image data includes both normal and diseased cartilage tissue;
electronically evaluating in three dimensions said image data to obtain information about geometry of the joint, said electronically evaluating including evaluating the joint along one or more vectors tangent or perpendicular to the cartilage or bone surface; and
determining at least one of size and shape for at least one of a transplant, a graft, an implant, a replacement material, a scaffold, a regenerating material and a repair system based on said three dimensional evaluation.
17. The method of claim 16 , wherein said electronically evaluating further comprises:
estimating the loss of cartilage in a joint, wherein the joint comprises cartilage and accompanying bones on either side of the joint, which method comprises,
obtaining a three-dimensional representation of the cartilage at an initial time and calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the initial time,
obtaining a three-dimensional representation of the cartilage at a later time,
calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the later time, and determining the loss in thickness or regional volume of the region of degenerated cartilage between the later and initial times.
18. The method of claim 16 , wherein said electronically evaluating further comprises:
assessing the condition of cartilage in a joint of a human, which method comprises,
electronically transferring an electronically generated image of a cartilage of the joint from a transferring device to a receiving device located distant from the transferring device,
receiving the transferred image at the distant location,
converting the transferred image to a degeneration pattern of the cartilage, and
transmitting the degeneration pattern to a site for analysis.
19. The method of claim 16 , wherein said electronically evaluating further comprises:
determining the volume of cartilage loss in a region of a cartilage defect of a cartilage in a joint of a mammal which method comprises,
determining the thickness, D N , of the normal cartilage near the cartilage defect,
obtaining the thickness of the cartilage defect, D D , of the region,
subtracting D D from D N to give the thickness of the cartilage loss, D L , and
multiplying the D L value times the area of the cartilage defect, A D , to give the volume of cartilage loss.
20. The method of claim 16 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint of a mammal over time, which method comprises,
estimating the thickness or width or area or volume of a region of cartilage at an initial time T 1 ,
estimating the thickness or width or area or volume of a region of cartilage at a later time T 2 , and
determining the change in the thickness or width or area or volume of the region of cartilage between the initial and the later times.
21. The method of claim 16 , wherein said electronically evaluating further comprises:
providing a biochemically based representation of joint cartilage of a mammal, wherein the joint comprises cartilage and associated bones on either side of the joint, which method comprises,
measuring a detectable biochemical component throughout the cartilage,
determining the relative amounts of the biochemical component throughout the cartilage,
evaluating the amounts of the biochemical component in three dimensions through the cartilage, and
determining the areas of abnormally joint cartilage by identifying the areas having altered amounts of the biochemical component present.
22. The method of claim 16 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint, wherein the joint comprises articular cartilage, which method comprises,
defining a 3D object coordinate system of the joint at an initial time, T 1 ,
identifying a region of a cartilage defect within the 3D object coordinate system,
defining a volume of interest around the region of the cartilage defect whereby the volume of interest is larger than the region of cartilage defect, but does not encompass the entire articular cartilage,
defining the 3D object coordinate system of the joint at a second timepoint, T 2 ,
identifying the identically-sized volume of interest into the 3D object coordinate system at timepoint T 2 using the object coordinates of the volume of interest at timepoint T 1 , and
measuring any differences in cartilage volume within the volume of interest between timepoints T 1 and T 2 .
23. The method of claim 16 , wherein said electronically evaluating further comprises:
correlating cartilage image data, bone image data, and optoelectrical image data for the assessment of the condition of a joint, which method comprises,
(a) obtaining the cartilage image data of the joint with a set of skin reference markers placed externally near the joint,
(b) obtaining the bone image data of the joint with a set of skin reference markers positioned in the same manner as the markers in (a),
(c) obtaining the optoelectrical image data of the joint with a set of skin reference markers positioned in the same manner as (a) and (b), and
(d) using the skin reference markers to correlate the images obtained in (a), (b) and (c) with each other, wherein each skin reference marker is detectable in the cartilage and bone data and the opto-electrical data.
24. The method of claim 16 , wherein said electronic image provides information on the thickness, shape, or curvature of said normal and said diseased tissue or the location and size of said diseased tissue.
25. The method claim 16 , wherein said articular repair comprises autologous chondrocyte transplantation, osteochondral allografting, osteochondral autografting, tibial corticotomy, femoral or tibial osteotomy.
26. The method of claim 16 , wherein said articular repair uses cartilage or bone tissue grown ex vivo, stem cells, an artificial non-human material, an agent that stimulates repair of said diseased tissue, or an agent.
27. The method of claim 16 , wherein said information is used to determine the thickness or other geometrical feature of a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold, or a tissue regenerating material or tissue repair system.
28. The method of claim 16 , wherein said image is obtained using ultrasound, computed tomography, positron emission tomography, a single photon emission computed tomography scan, or MRI.
29. The method of claim 28 , wherein said information is used to generate a three-dimensional representation of cartilage thickness or a physical model of said normal or said diseased tissue or both.
30. The method of claim 29 , wherein said physical model is used to shape a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold or a tissue regenerating material or tissue repair system.
31. A method of treating a human joint disease involving cartilage comprising:
obtaining electronic image data of a joint, wherein said image data includes both normal and diseased cartilage tissue;
electronically evaluating in three dimensions said image data to obtain information about geometry of the joint, said electronically evaluating including evaluating the joint along one or more vectors tangent or perpendicular to the cartilage or bone surface; and
designing a therapy based on said three dimensional evaluation.
32. The method of claim 31 , wherein said electronically evaluating further comprises:
estimating the loss of cartilage in a joint, wherein the joint comprises cartilage and accompanying bones on either side of the joint, which method comprises,
obtaining a three-dimensional representation of the cartilage at an initial time and calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the initial time,
obtaining a three-dimensional representation of the cartilage at a later time,
calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the later time, and
determining the loss in thickness or regional volume of the region of degenerated cartilage between the later and initial times.
33. The method of claim 31 , wherein said electronically evaluating further comprises:
assessing the condition of cartilage in a joint of of a human, which method comprises,
electronically transferring an electronically generated image of a cartilage of the joint from a transferring device to a receiving device located distant from the transferring device,
receiving the transferred image at the distant location,
converting the transferred image to a degeneration pattern of the cartilage, and
transmitting the degeneration pattern to a site for analysis.
34. The method of claim 31 , wherein said electronically evaluating further comprises:
determining the volume of cartilage loss in a region of a cartilage defect of a cartilage in a joint of a mammal which method comprises,
determining the thickness, D N , of the normal cartilage near the cartilage defect,
obtaining the thickness of the cartilage defect, D D , of the region,
subtracting D D from D N to give the thickness of the cartilage loss, D L , and
multiplying the D L value times the area of the cartilage defect, A D , to give the volume of cartilage loss.
35. The method of claim 31 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint of a mammal over time, which method comprises,
estimating the thickness or width or area or volume of a region of cartilage at an initial time T 1 ,
estimating the thickness or width or area or volume of a region of cartilage at an later time T 2 , and
determining the change in the thickness or width or area or volume of the region of cartilage between the initial and the later times.
36. The method of claim 31 , wherein said electronically evaluating further comprises:
providing a biochemically based representation of joint cartilage of a mammal, wherein the joint comprises cartilage and associated bones on either side of the joint, which method comprises,
measuring a detectable biochemical component throughout the cartilage,
determining the relative amounts of the biochemical component throughout the cartilage,
evaluating the amounts of the biochemical component in three dimensions through the cartilage, and
determining the area of abnormally joint cartilage by identifying the areas having altered amounts of the biochemical component present.
37. The method of claim 31 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint, wherein the joint comprises articular cartilage, which method comprises,
defining a 3D object coordinate system of the joint at an initial time, T 1 ,
identifying a region of a cartilage defect within the 3D object coordinate system,
defining a volume of interest around the region of the cartilage defect whereby the volume of interest is larger than the region of cartilage defect, but does not encompass the entire articular cartilage,
defining the 3D object coordinate system of the joint at a second timepoint, T 2 ,
identifying the identically-sized volume of interest into the 3D object coordinate system at timepoint T 2 using the object coordinates of the volume of interest at timepoint T 1 , and
measuring any differences in cartilage volume within the volume of interest between timepoints T 1 and T 2 .
38. The method of claim 31 , wherein said electronically evaluating further comprises:
correlating cartilage image data, bone image data, and optoelectrical image data for the assessment of the condition of a joint, which method comprises,
(a) obtaining the cartilage image data of the joint with a set of skin reference markers placed externally near the joint,
(b) obtaining the bone image data of the joint with a set of skin reference markers positioned in the same manner as the markers in (a),
(c) obtaining the optoelectrical image data of the joint with a set of skin reference markers positioned in the same manner as (a) and (b), and
(d) using the skin reference markers to correlate the images obtained in (a), (b) and (c) with each other, wherein each skin reference marker is detectable in the cartilage and bone data and the opto-electrical data.
39. The method of claim 31 , wherein said electronic data provides information on the thickness, shape, or curvature of said normal and said diseased tissue or the location and size of said diseased tissue.
40. The mehtod of claim 31 , wherein said therapy comprises autologous chondrocyte transplantation, osteochondral allografting, osteochondral autografting, an implant, a replacement material, a scaffold, a regenerating material and a repair system, tibial corticotomy, femoral or tibial osteotomy.
41. The method of claim 31 , wherein said therapy uses cartilage or bone tissue grown ex vivo, stem cells, an artificial non-human material, an agent that stimulates repair of said diseased tissue, or an agent.
42. The method of claim 31 , wherein said information is used to determine the thickness or other geometrical feature of a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold, or a tissue regenerating material or tissue repair system.
43. The method of claim 31 , wherein said image is obtained using ultrasound, computed tomography, positron emission tomography, a single photon emission computed tomography scan, or MRI.
44. The method of claim 43 , wherein said information is used to generate a three-dimensional representation of cartilage thickness or a physical model of said normal or said diseased tissue or both.
45. The method of claim 44 , wherein said physical model is used to shape a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold or a tissue regenerating material or tissue repair system.
46. The method of claim 31 , wherein said electronic data provides information on the thickness, shape, or curvature of said normal and said diseased tissue or the location and size of said diseased tissue.
47. A method of treating a human joint disease involving cartilage comprising:
obtaining electronic image data of a joint, wherein said image data includes both normal and diseased cartilage tissue;
electronically evaluating in three dimensions said image data to obtain information about volume, area, thickness, curvature, water content, sodium content, hyaluronic acid content, glycosaminoglycan content, signal intensity or relaxation time of said normal or diseased tissue, or three dimensional geometry of the joint, said electronically evaluating including evaluating said image data along one or more vectors tangent or perpendicular to the cartilage or bone surface; and
selecting or designing a therapy based on said three dimensional evaluation.
48. A method of treating a human joint disease involving cartilage comprising:
obtaining electronic image data of a joint, wherein said image data includes both normal and diseased cartilage tissue;
electronically evaluating in three dimensions said image data to obtain information about geometry of the joint, said electronically evaluating further including:
estimating the loss of cartilage in a joint, wherein the joint comprises cartilage and accompanying bones on either side of the joint, which method comprises,
obtaining a three-dimensional representation of the cartilage at an initial time and calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the initial time,
obtaining a three-dimensional representation of the cartilage at a later time,
calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the later time, and
determining the loss in thickness or regional volume of the region of degenerated cartilage between the later and initial times; and
selecting a therapy based on said three-dimensional evaluation.
49. A method of treating a human joint disease involving cartilage comprising:
obtaining electronic image data of a joint, wherein said image data includes both normal and diseased cartilage tissue;
electronically evaluating in three dimensions said image data to obtain information about geometry of the joint, said electronically evaluating further including:
determining the volume of cartilage loss in a region of a cartilage defect of a cartilage in a joint of a mammal which method comprises,
determining the thickness, D N, of the normal cartilage near the cartilage defect,
obtaining the thickness of the cartilage defect, D D, of the region,
subtracting D D from D N to give the thickness of the cartilage loss, D L, and
multiplying the D L value time the area of the cartilage defect, A D, to give the volume of cartilage loss; and
selecting a therapy based on said three-dimensional evaluation.
50. A method of treating a human joint disease involving cartilage comprising:
obtaining electronic image data of a joint, wherein said image data includes both normal and diseased cartilage tissue;
electronically evaluating in three dimensions said image data to obtain information about geometry of the joint, said electronically evaluating further including:
estimating the change of cartilage in a joint of a mammal over time, which method comprises,
estimating the thickness or width or area or volume of a region of cartilage at an initial time T 1,
estimating the thickness or width or area or volume of the region of cartilage at a later time T 2, and
determining the change in the thickness or width or area or volume of the region of cartilage between the initial and the later times; and
selecting a therapy based on said three-dimensional evaluation.
51. A method of treating a human joint disease involving cartilage comprising:
obtaining electronic image data of a joint, wherein said image data includes both normal and diseased cartilage tissue;
electronically evaluating in three dimensions said image data to obtain information about geometry of the joint, said electronically evaluating further including:
providing a biochemically based representation of joint cartilage of a mammal, wherein the joint comprises cartilage and associated bones on either side of the joint, which method comprises,
measuring a detectable biochemical component in the cartilage,
determining the relative amounts of the biochemical component in the cartilage,
evaluating the amounts of the biochemical component in three dimensions in the cartilage, and
determining the areas of abnormally joint cartilage by identifying the areas having altered amounts of the biochemical component present; and
selecting a therapy based on said three-dimensional evaluation.
52. A method of treating a human joint disease involving cartilage comprising:
obtaining electronic image data of a joint, wherein said image data includes both normal and diseased cartilage tissue;
electronically evaluating in three dimensions said image data to obtain information about geometry of the joint, said electronically evaluating further including:
estimating the change of cartilage in a joint, wherein the joint comprises articular cartilage, which method comprises,
defining a 3D object coordinate system of the joint at an initial time, T1,
identifying a region of a cartilage defect within the 3D object coordinate system,
defining a volume of interest around the region of the cartilage defect whereby the volume of interest is larger than the region of cartilage defect, but does not encompass the entire articular cartilage,
defining the 3D object coordinate system of the joint at a second timepoint, T 2,
placing the identically-sized volume of interest into the 3D object coordinate system at timepoint T 2 using the object coordinates of the volume of interest at timepoint T 1, and
measuring any differences in cartilage volume within the volume of interest between timepoints T 1 and T 2 ; and
selecting a therapy based on said three-dimensional evaluation.
53. A method of treating a human joint disease involving cartilage comprising:
obtaining electronic image data of a joint, wherein said image data includes both normal and diseased cartilage tissue;
electronically evaluating in three dimensions said image to obtain information about geometry of the joint, said electronically evaluating further including:
correlating cartilage image data, bone image data, and optoelectrical image data for the assessment of the condition of a joint, which method comprises,
(a) obtaining the cartilage image data of the joint with a set of skin reference markers placed externally near the joint,
(b) obtaining the bone image data of the joint with a set of skin reference markers positioned in the same manner as the markers in (a),
(c) obtaining the optoelectrical image data of the joint with a set of skin reference markers positioned in the same manner as (a) and (b), and
(d) using the skin reference markers to correlate the images obtained in (a), (b) and (c) with each other, wherein each skin reference marker is detectable in the cartilage and bone data and the opto-electrical data; and
selecting a therapy based on said three-dimensional evaluation.
54. A method of treating a human joint disease involving cartilage comprising:
obtaining electronic data associated with an image of a joint, wherein said image data includes both normal and diseased cartilage tissue;
electronically evaluating in three-dimensions said image data to obtain information about geometry of the joint, said electronically evaluating including evaluating cartilage or bone in said image along at least three vectors, at least one of the vectors being non-coplanar and non-parallel with at least two of the other vectors defining a vector plane; and
selecting or designing a therapy based on said three-dimensional evaluation.
55. The method of claim 54 , wherein said electronically evaluating further comprises:
estimating the loss of cartilage in a joint, wherein the joint comprises cartilage and accompanying bones on either side of the joint, which method comprises,
obtaining a three-dimensional representation of the cartilage at an initial time and calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the initial time,
obtaining a three-dimensional representation of the cartilage at a later time,
calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the later time, and
determining the loss in thickness or regional volume of the region of degenerated cartilage between the later and initial times.
56. The method of claim 54 , wherein said electronically evaluating further comprises:
assessing the condition of cartilage in a joint of a human, which method comprises,
electronically transferring an electronically generated image of a cartilage of the joint from a transferring device to a receiving device located distant from the transferring device,
receiving the transferred image at the distant location,
converting the transferred image to a degeneration pattern of the cartilage, and
transmitting the degeneration pattern to a site for analysis.
57. The method of claim 54 , wherein said electronically evaluating further comprises:
determining the volume of cartilage loss in a region of a cartilage defect of a cartilage in a joint of a mammal which method comprises,
determining the thickness, D N, of the normal cartilage near the cartilage defect,
obtaining the thickness of the cartilage defect, D D, of the region,
subtracting D D from D L to give the thickness of the cartilage loss, D L, and
multiplying the D L value times the area of the cartilage defect, A D, to give the volume of cartilage loss.
58. The method of claim 54 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint of a mammal over time, which method comprises,
estimating the thickness or width or area or volume of a region of cartilage at an initial time T 1,
estimating the thickness or width or area or volume of the region of cartilage at a later time T 2, and
determining the change in the thickness or width or area or volume of the region of cartilage between the initial and the later times.
59. The method of claim 54 , wherein said electronically evaluating further comprises:
providing a biochemically based representation of joint cartilage of a mammal, wherein the joint comprises cartilage and associated bones on either side of the joint, which method comprises,
measuring a detectable biochemical component in the cartilage,
determining the relative amounts of the biochemical component in the cartilage,
evaluating the amounts of the biochemical component in three dimensions in the cartilage, and
determining the areas of abnormal joint cartilage by identifying the areas having altered amounts of the biochemical component present.
60. The method of claim 54 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint, wherein the joint comprises articular cartilage, which method comprises,
defining a 3D object coordinate system of the joint at an initial time, T 1,
identifying a region of a cartilage defect within the 3D object coordinate system,
defining a volume of interest around the region of the cartilage defect whereby the volume of interest is larger than the region of cartilage defect, but does not encompass the entire articular cartilage,
defining the 3D object coordinate system of the joint at a second timepoint, T 2,
placing the identically-sized volume of interest into the 3D object coordinate system at timepoint T 2 using the object coordinates of the volume of interest at timepoint T 1, and
measuring any differences in cartilage volume within the volume of interest between timepoints T 1 and T 2 .
61. A method of claim 54 , wherein said electronically evaluating further comprises:
correlating cartilage image data, bone image data, and optoelectrical image data for the assessment of the condition of a joint, which method comprises,
(a) obtaining the cartilage image data of the joint with a set of skin reference markers placed externally near the joint,
(b) obtaining the bone image data of the joint with a set of skin reference markers positioned in the same manner as the markers in (a),
(c) obtaining the optoelectrical image data of the joint with a set of skin reference markers positioned in the same manner as (a) and (b), and
(d) using the skin reference markers to correlate the images obtained in (a), (b) and (c) with each other, wherein each skin reference marker is detectable in the cartilage and bone data and the opto-electrical data.
62. The method of claim 54 , wherein said electronic image provides information on the thickness, shape, or curvature of said normal and said diseased tissue or the location and size of said diseased tissue.
63. The method of claim 54 , wherein said therapy comprises autologous chondrocyte transplantation, osteochondral allografting, osteochondral autografting, an implant, a replacement material, a scaffold, a regenerating material and a repair system, tibial corticotomy, femoral or tibial osteotomy.
64. The method of claim 54 , wherein said therapy uses cartilage or bone tissue grown ex vivo, stem cells, an artificial non-human material, an agent that stimulates repair of said diseased tissue, or an agent.
65. The method of claim 54 , wherein said information is used to determine the thickness or other geometrical feature of a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold, or a tissue regenerating material or tissue repair system.
66. The method of claim 54 , wherein said image is obtained using ultrasound, computed tomography, positron emission tomography, a single photon emission computed tomography scan, or MRI.
67. The method of claim 66 , wherein said information is used to generate a three-dimensional representation of cartilage thickness or a physical model of said normal or said diseased tissue or both.
68. The method of claim 67 , wherein said physical model is used to shape a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold or a tissue regenerating material or tissue repair system.
69. A method of treating a human joint disease involving cartilage comprising:
obtaining electronic image data of a joint, wherein said image data includes both normal and diseased cartilage tissue;
electronically evaluating in three dimensions cartilage or bone in said image data to obtain information about geometry of the joint at a first point and a second point, wherein information related to the first point is derived based on at least one point of the joint that forms, with the first point, a first vector, wherein information related to the second point is derived based on at least one point of the joint that forms, with the second point, a second vector, and wherein the first and second vectors are non-coplanar and non-parallel; and
selecting or designing a therapy based on said three-dimensional evaluation.
70. The method of claim 69 , wherein said electronically evaluating further comprises:
estimating the loss of cartilage in a joint, wherein the joint comprises cartilage and accompanying bones on either side of the joint, which method comprises,
obtaining a three-dimensional representation of the cartilage at an initial time and calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the initial time,
obtaining a three-dimensional representation of the cartilage at a later time,
calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the later time, and
determining the loss in thickness or regional volume of the region of degenerated cartilage between the later and initial times.
71. The method of claim 69 , wherein said electronically evaluating further comprises:
assessing the condition of cartilage in a joint of a human, which method comprises,
electronically transferring an electronically generated image of a cartilage of the joint from a transferring device to a receiving device located distant from the transferring device,
receiving the transferred image at the distant location,
converting the transferred image to a degeneration pattern of the cartilage, and
transmitting the degeneration pattern to a site for analysis.
72. The method of claim 69 , wherein said electronically evaluating further comprises:
determining the volume of cartilage loss in a region of a cartilage defect of a cartilage in a joint of a mammal which method comprises,
determining the thickness, D N, of the normal cartilage near the cartilage defect,
obtaining the thickness of the cartilage defect, D D, of the region,
subtracting D D from D N to give the thickness of the cartilage loss, D L, and
multiplying the D L value times the area of the cartilage defect, A D, to give the volume of cartilage loss.
73. The method of claim 69 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint of a mammal over time, which method comprises,
estimating the thickness or width or area or volume of a region of cartilage at an initial time T 1,
estimating the thickness or width or area or volume of the region of cartilage at a later time T 2, and
determining the change in the thickness or width or area or volume of the region of cartilage between the initial and the later times.
74. The method of claim 69 , wherein said electronically evaluating further comprises:
providing a biochemically based representation of joint cartilage of a mammal, wherein the joint comprises cartilage and associated bones on either side of the joint, which method comprises,
measuring a detectable biochemical component throughout the cartilage,
determining the relative amounts of the biochemical component throughout the cartilage,
evaluating the amounts of the biochemical component in three dimensions through the cartilage, and
determining the areas of abnormally joint cartilage by identifying the areas having altered amounts of the biochemical component present.
75. The method of claim 69 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint, wherein the joint comprises articular cartilage, which method comprises,
defining a 3D object coordinate system of the joint at an initial time, T 1,
identifying a region of a cartilage defect within the 3D object coordinate system,
defining a volume of interest around the region of the cartilage defect whereby the volume of interest is larger than the region of cartilage defect, but does not encompass the entire articular cartilage,
defining the 3D object coordinate system of the joint at a second timepoint, T 2,
placing the identically-sized volume of interest into the 3D object coordinate system at timepoint T 2 using the object coordinates of the volume of interest at timepoint T 1, and
measuring any differences in cartilage volume within the volume of interest between timepoints T 1 and T 2 .
76. A method of claim 69 , wherein said electronically evaluating further comprises:
correlating cartilage image data, bone image data, and optoelectrical image data for the assessment of the condition of a joint, which method comprises,
(a) obtaining the cartilage image data of the joint with a set of skin reference markers placed externally near the joint,
(b) obtaining the bone image data of the joint with a set of skin reference markers positioned in the same manner as the markers in (a),
(c) obtaining the optoelectrical image data of the joint with a set of skin reference markers positioned in the same manner as (a) and (b), and
(d) using the skin reference markers to correlate the images obtained in (a), (b) and (c) with each other, wherein each skin reference marker is detectable in the cartilage and bone data and the opto-electrical data.
77. The method of claim 69 , wherein said electronic image data provides information on the thickness, shape, or curvature of said normal and said diseased tissue or the location and size of said diseased tissue.
78. The method of claim 69 , wherein said therapy comprises autologous chondrocyte transplantation, osteochondral allografting, osteochondral autografting, an implant, a replacement material, a scaffold, a regenerating material and a repair system, tibial corticotomy, femoral or tibial osteotomy.
79. The method of claim 69 , wherein said therapy uses cartilage or bone tissue grown ex vivo, stem cells, an artificial non-human material, an agent that stimulates repair of said diseased tissue, or an agent.
80. The method of claim 69 , wherein said information is used to determine the thickness or other geometrical feature of a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold, or a tissue regenerating material or tissue repair system.
81. The method of claim 69 , wherein said image is obtained using ultrasound, computed tomography, positron emission tomography, a single photon emission computed tomography scan, or MRI.
82. The method of claim 81 , wherein said information is used to generate a three-dimensional representation of cartilage thickness or a physical model of said normal or said diseased tissue or both.
83. The method of claim 82 , wherein said physical model is used to shape a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold or a tissue regenerating material or tissue repair system.
84. A method of treating a human joint disease involving cartilage comprising:
imaging a joint on an imaging plane to obtain electronic image data, the image data including both normal and diseased cartilage tissue;
electronically evaluating in three dimensions said image data to obtain information about geometry of the joint, said electronically evaluating including evaluating cartilage or bone in said image along a vector that is non-parallel to the imaging plane; and
selecting or designing a therapy based on said three-dimensional evaluation.
85. The method of claim 84 , wherein said electronically evaluating further comprises:
estimating the loss of cartilage in a joint, wherein the joint comprises cartilage and accompanying bones on either side of the joint, which method comprises,
obtaining a three-dimensional representation of the cartilage at an initial time and calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the initial time,
obtaining a three-dimensional representation of the cartilage at a later time,
calculating the thickness or regional vlume of a region of degenerated cartilage evaluated at the later time, and
determining the loss in thickness or regional volume of the region of degenerated cartilage between the later and initial times.
86. The method of claim 84 , wherein said electronically evaluating further comprises:
assessing the condition of cartilage in a joint of a human, which method comprises,
electronically transferring an electronically generated image of a cartilage of the joint from a transferring device to a receiving device located distant from the transferring device,
receiving the transferring image at the distant location,
converting the transferred image to a degeneration pattern of the cartilage, and
transmitting the degeneration pattern to a site for analysis.
87. The method of claim 84 , wherein said electronically evaluating further comprises:
determining the volume of cartilage loss in a region of a cartilage defect of a cartilage in a joint of a mammal which method comprises,
determining the thickness, D N, of the normal cartilage near the cartilage defect,
obtaining the thickness of the cartilage defect, D D, of the region,
subtracting D D from D N to give the thickness of the cartilage loss, D L, and
multiplying the D L value times the area of the cartilage defect, A D, to give the volume of cartilage loss.
88. The method of claim 84 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint of a mammal over time, which method comprises,
estimating the thickness or width or area or volume of a region of cartilage at an initial time T 1,
estimating the thickness or width or area or volume of the region of cartilage at a later time T 2, and
determining the change in the thickness or width or area or volume of the region of cartilage between the initial and the later times.
89. The method of claim 84 , wherein said electronically evaluating further comprises:
providing a biochemically based representation of joint cartilage of a mammal, wherein the joint comprises cartilage and associated bones on either side of the joint, which method comprises,
measuring a detectable biochemical component throughout the cartilage,
determining the relative amounts of the biochemical component throughout the cartilage,
evaluating the amounts of the biochemical component in three dimensions through the cartilage, and
determining the areas of abnormally joint cartilage by identifying the area having altered amounts of the biochemical component present.
90. A method of claim 84 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint, wherein the joint comprises articular cartilage, which method comprises,
defining a 3D object coordinate system of the joint at an initial time, T 1,
identifying a region of a cartilage defect within the 3D object coordinate system,
defining a volume of interest around the region of the cartilage defect whereby the volume of interest is larger than the region of cartilage defect, but does not encompass the entire articular cartilage,
defining the 3D object coordinate system of the joint at a second timepoint, T 2,
placing the identically-sized volume of interest into the 3D object coordinate system at timepoint T 2 using the object coordinates of the volume of interest at timepoint T 1, and
measuring any differences in cartilage volume within the volume of interest between timepoints T 1 and T 2 .
91. A method of claim 84 , wherein said electronically evaluating further comprises:
correlating cartilage image data, bone image data, and optoelectrical image data for the assessment of the condition of a joint, which method comprises,
(a) obtaining the cartilage image data of the joint with a set of skin reference markers placed externally near the joint,
(b) obtaining the bone image data of the joint with a set of skin reference markers positioned in the same manner as the markers in (a),
(c) obtaining the optoelectrical image data of the joint with a set of skin reference markers positioned in the same manner as (a) and (b), and
(d) using the skin reference markers to correlate the images obtained in (a), (b) and (c) with each other, wherein each skin reference marker is detectable in the cartilage and bone data and the opto-electrical data.
92. The method of claim 84 , wherein said electronic image data provide information on the thickness, shape, or curvature of said normal and said diseased tissue or the location and size of said diseased tissue.
93. The method of claim 84 , wherein said therapy comprises autologous chondrocyte transplantation, osteochondral allografting, osteochondral autografting, an implant, a replacement material, a scaffold, a regenerating material, a repair system, tibial corticotomy, femoral osteotomy or tibial osteotomy.
94. The method of claim 84 , wherein said therapy uses cartilage or bone tissue grown ex vivo, stem cells, an artificial non-human material, an agent that stimulates repair of said diseased tissue, or an agent.
95. The method of claim 84 , wherein said information is used to determine the thickness or other geometrical feature of a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold, or a tissue regenerating material or tissue repair system.
96. The method of claim 84 , wherein said image is obtained using ultrasound, computed tomography, positron emission tomography, a single photon emission computed tomography scan, or MRI.
97. The method of claim 96 , wherein said information is used to generate a three-dimensional representation of cartilage thickness or a physical model of said normal or said diseased tissue or both.
98. The method of claim 97 , wherein said physical model is used to shape a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold or a tissue regenerating material or tissue repair system.
99. A method of treating a human joint disease involving cartilage comprising:
obtaining CT or MRI image data of a joint, wherein said image data includes both normal and diseased cartilage tissue;
electronically evaluating in three dimensions said image data to obtain information about geometry of the joint, said electronically evaluating including evaluating the joint along at least two non-parallel planes; and
selecting a therapy based on said three-dimensional evaluation.
100. The method of claim 99 , wherein said electronically evaluating further comprises:
estimating the loss of cartilage in a joint, wherein the joint comprises cartilage and accompanying bones on either side of the joint, which method comprises,
obtaining a three-dimensional representation of the cartilage at an initial time and calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the initial time,
obtaining a three-dimensional representation of the cartilage at a later time,
calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the later time, and
determining the loss in thickness or regional volume of the region of degenerated cartilage between the later and initial times.
101. The method of claim 99 , wherein said electronically evaluating further comprises:
assessing the condition of cartilage in a joint of a human, which method comprises,
electronically transferring an electronically generated image of a cartilage of the joint from a transferring device to a receiving device located distant from the transferring device, receiving the transferred image at the distant location,
converting the transferred image to a degeneration pattern of the cartilage, and
transmitting the degeneration pattern to a site for analysis.
102. The method of claim 99 , wherein said electronically evaluating further comprises:
determining the volume of cartilage loss in a region of a cartilage defect of a cartilage in a joint of a mammal which method comprises,
determining the thickness, D N , of the normal cartilage near the cartilage defect,
obtaining the thickness of the cartilage defect, D D , of the region,
subtracting D D from D N to give the thickness of the cartilage loss, D L , and
multiplying the D L value times the area of the cartilage defect, A D , to give the volume of cartilage loss.
103. The method of claim 99 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint of a mammal over time, which method comprises,
estimating the thickness or width or area or volume of a region of cartilage at an initial time T 1 ,
estimating the thickness or width or area or volume of the region of cartilage at a later time T 2 , and
determining the change in the thickness or width or area or volume of the region of cartilage between the initial and the later times.
104. The method of claim 99 , wherein said electronically evaluating further comprises:
providing a biochemically based representation of joint cartilage of a mammal, wherein the joint comprises cartilage and associated bones on either side of the joint, which method comprises,
measuring a detectable biochemical component throughout the cartilage,
determining the relative amounts of the biochemical component throughout the cartilage,
evaluating the amounts of the biochemical component in three dimensions through the cartilage, and
determining the areas of abnormally joint cartilage by identifying the areas having altered amounts of the biochemical component present.
105. The method of claim 99 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint, wherein the joint comprises articular cartilage, which method comprises,
defining a 3D object coordinate system of the joint at an initial time, T 1 ,
identifying a region of a cartilage defect within the 3D object coordinate system,
defining a volume of interest around the region of the cartilage defect whereby the volume of interest is larger than the region of cartilage defect, but does not encompass the entire articular cartilage,
defining the 3D object coordinate system of the joint at a second timepoint, T 2 ,
placing the identically-sized volume of interest into the 3D object coordinate system at timepoint T 2 using the object coordinates of the volume of interest at timepoint T 1 , and
measuring any differences in cartilage volume within the volume of interest between timepoints T 1 and T 2 .
106. The method of claim 99 , wherein said electronically evaluating further comprises:
correlating cartilage image data, bone image data, and optoelctrical image data for the assessment of the condition of a joint, which method comprises,
(a) obtaining the cartilage image data of the joint with a set of skin reference markers placed externally near the joint,
(b) obtaining the bone image data of the joint with a set of skin reference markers positioned in the same manner as the markers in (a),
(c) obtaining the optoelectrical image data of the joint with a set of skin reference markers positioned in the same manner as (a) and (b), and
(d) using the skin reference markers to correlate the images obtained in (a), (b) and (c) with each other, wherein each skin reference marker is detectable in the cartilage and bone data and the opto-electrical data.
107. The method of claim 99 , wherein said electronic image data provides information on the thickness, shape, or curvature of said normal and said diseased tissue or the location and size of said diseased tissue.
108. The method of claim 99 , wherein said therapy comprises autologous chondrocyte transplantation, osteochondral allografting, osteochondral autografting, an implant, a replacement material, a scaffold, a regenerating material, a repair system, tibial corticotomy, femoral osteotomy or tibial osteotomy.
109. The method of claim 99 , wherein said therapy uses cartilage or bone tissue grown ex vivo, stem cells, an artificial non-human material, an agent that stimulates repair of said diseased tissue, or an agent.
110. The method of claim 99 , wherein said information is used to determine the thickness or other geometrical feature of a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold, or a tissue regenerating material or tissue repair system.
111. The method of claim 99 , wherein said information is used to generate a three-dimensional representation of cartilage thickness or a physical model of said normal or said diseased tissue or both.
112. The method of claim 111 , wherein said physical model is used to shape a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold or a tissue regenerating material or tissue repair system.
113. A method of treating a human joint disease involving cartilage comprising:
obtaining CT or MRI image data of a joint, wherein said image data includes both normal and diseased cartilage tissue;
electronically evaluating in three dimensions said image data to obtain information about geometry of the joint, said electronically evaluating including evaluating said joint along at least two non-parallel planes; and
determining at least one of size and shape for at least one of a transplant, a graft, an implant, a replacement material, a scaffold, a regenerating material and a repair system based on said three dimensional evaluation.
114. The method of claim 113 , wherein said electronically evaluating further comprises:
estimating the loss of cartilage in a joint, wherein the joint comprises cartilage and accompanying bones on either side of the joint, which method comprises,
obtaining a three-dimensional representation of the cartilage at an initial time and calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the initial time,
obtaining a three-dimensional representation of the cartilage at a later time,
calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the later time, and
determining the loss in thickness or regional volume of the region of degenerated cartilage between the later and initial times.
115. The method of claim 113 , wherein said electronically evaluating further comprises:
assessing the condition of cartilage in a joint of a human, which method comprises,
electronically transferring an electronically generated image of a cartilage of the joint from a transferring device to a receiving device located distant from the transferring device,
receiving the transferred image at the distant location,
converting the transferred image to a degeneration pattern of the cartilage, and
transmitting the degeneration pattern to a site for analysis.
116. The method of claim 113 , wherein said electronically evaluating further comprises:
determining the volume of cartilage loss in a region of a cartilage defect of a cartilage in a joint of a mammal which method comprises,
determining the thickness, D N , of the normal cartilage near the cartilage defect,
obtaining the thickness of the cartilage defect, D D , of the region,
subtracting D D from D N to give the thickness of the cartilage loss, D L , and
multiplying the D L value times the area of the cartilage defect, A D , to give the volume of cartilage loss.
117. The method of claim 113 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint of a mammal over time, which method comprises,
estimating the thickness or width or area or volume of a region of cartilage at an initial time T 1 ,
estimating the thickness or width or area or volume of the region of cartilage at a later time T 2 , and
determining the change in the thickness or width or area or volume of the region of cartilage between the initial and the later times.
118. The method of claim 113 , wherein said electronically evaluating further comprises:
providing a biochemically based representation of joint cartilage of a mammal, wherein the joint comprises cartilage and associated bones on either side of the joint, which method comprises,
measuring a detectable biochemical component throughout the cartilage,
determining the relative amounts of the biochemical component throughout the cartilage,
evaluating the amounts of the biochemical component in three dimensions through the cartilage, and
determining the areas of abnormally joint cartilage by identifying the areas having altered amounts of the biochemical component present.
119. The method of claim 113 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint, wherein the joint comprises articular cartilage, which method comprises,
defining a 3D object coordinate system of the joint at an initial time, T 1 ,
identifying a region of a cartilage defect within the 3D object coordinate system,
defining a volume of interest around the region of the cartilage defect whereby the volume of interest is larger than the region of cartilage defect, but does not encompass the entire articular cartilage,
defining the 3D object coordinate system of the joint at a second timepoint, T 2 ,
identifying the identically-sized volume of interest into the 3D object coordinate system at timepoint T 2 using the object coordinates of the volume of interest at timepoint T 1 , and
measuring any differences in cartilage volume within the volume of interest between timepoints T 1 and T 2 .
120. The method of claim 113 , wherein said electronically evaluating further comprises:
correlating cartilage image data, bone image data, and optoelctrical image data for the assessment of the condition of a joint, which method comprises,
(a) obtaining the cartilage image data of the joint with a set of skin reference markers placed externally near the joint,
(b) obtaining the bone image data of the joint with a set of skin reference markers positioned in the same manner as the markers in (a),
(c) obtaining the optoelectrical image data of the joint with a set of skin reference markers positioned in the same manner as (a) and (b), and
(d) using the skin reference markers to correlate the images obtained in (a), (b) and (c) with each other, wherein each skin reference marker is detectable in the cartilage and bone data and the opto-electrical data.
121. The method of claim 113 , wherein said electronic image provides information on the thickness, shape, or curvature of said normal and said diseased tissue or the location and size of said diseased tissue.
122. The method of claim 113 , wherein said articular repair comprises autologous chondrocyte transplantation, osteochondral allografting, osteochondral autografting, tibial corticotomy, femoral or tibial osteotomy.
123. The method of claim 113 , wherein said articular repair uses cartilage or bone tissue grown ex vivo, stem cells, an artificial non-human material, an agent that stimulates repair of said diseased tissue, or an agent.
124. The method of claim 113 , wherein said information is used to determine the thickness or other geometrical feature of a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold, or a tissue regenerating material or tissue repair system.
125. The method of claim 113 , wherein said information is used to generate a three-dimensional representation of cartilage thickness or a physical model of said normal or said diseased tissue or both.
126. The method of claim 125 , wherein said physical model is used to shape a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold or a tissue regenerating material or tissue repair system.
127. A method of treating a human joint disease involving cartilage comprising:
obtaining CT or MRI image data of a joint, wherein said image data includes both normal and diseased cartilage tissue;
electronically evaluating in three dimensions said image data to obtain information about geometry of the joint, said electronically evaluating including evaluating said joint along at least two non-parallel planes; and
designing a therapy based on said three dimensional evaluation.
128. The method of claim 127 , wherein said electronically evaluating further comprises:
estimating the loss of cartilage in a joint, wherein the joint comprises cartilage and accompanying bones on either side of the joint, which method comprises,
obtaining a three-dimensional representation of the cartilage at an initial time and calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the initial time,
obtaining a three-dimensional representation of the cartilage at a later time,
calculating the thickness or regional volume of a region of degenerated cartilage evaluated at the later time, and
determining the loss in thickness or regional volume of the region of degenerated cartilage between the later and initial times.
129. The method of claim 127 , wherein said electronically evaluating further comprises:
assessing the condition of cartilage in a joint of a human, which method comprises,
electronically transferring an electronically generated image of a cartilage of the joint from a transferring device to a receiving device located distant from the transferring device,
receiving the transferred image at the distant location,
converting the transferred image to a degeneration pattern of the cartilage, and
transmitting the degeneration pattern to a site for analysis.
130. The method of claim 127 , wherein said electronically evaluating further comprises:
determining the volume of cartilage loss in a region of a cartilage defect of a cartilage in a joint of a mammal which method comprises,
determining the thickness, D N , of the normal cartilage near the cartilage defect,
obtaining the thickness of the cartilage defect, D D , of the region,
subtracting D D from D N to give the thickness of the cartilage loss, D L , and
multiplying the D L value times the area of the cartilage defect, A D , to give the volume of cartilage loss.
131. The method of claim 127 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint of a mammal over time, which method comprises,
estimating the thickness or width or area or volume of a region of cartilage at an initial time T 1 ,
estimating the thickness or width or area or volume of the region of cartilage at a later time T 2 , and
determining the change in the thickness or width or area or volume of the region of cartilage between the initial and the later times.
132. The method of claim 127 , wherein said electronically evaluating further comprises:
providing a biochemically based representation of joint cartilage of a mammal, wherein the joint comprises cartilage and associated bones on either side of the joint, which method comprises,
measuring a detectable biochemical component throughout the cartilage,
determining the relative amounts of the biochemical component throughout the cartilage,
evaluating the amounts of the biochemical component in three dimensions through the cartilage, and
determining the areas of abnormally joint cartilage by identifying the areas having altered amounts of the biochemical component present.
133. The method of claim 127 , wherein said electronically evaluating further comprises:
estimating the change of cartilage in a joint, wherein the joint comprises articular cartilage, which method comprises,
defining a 3D object coordinate system of the joint at an initial time, T 1 ,
identifying a region of a cartilage defect within the 3D object coordinate system,
defining a volume of interest around the region of the cartilage defect whereby the volume of interest is larger than the region of cartilage defect, but does not encompass the entire articular cartilage,
defining the 3D object coordinate system of the joint at a second timepoint, T 2 ,
identifying the identically-sized volume of interest into the 3D object coordinate system at timepoint T 2 using the object coordinates of the volume of interest at timepoint T 1 , and
measuring any differences in cartilage volume within the volume of interest between timepoints T 1 and T 2 .
134. The method of claim 127 , wherein said electronically evaluating further comprises:
correlating cartilage image data, bone image data, and optoelctrical image data for the assessment of the condition of a joint, which method comprises,
(a) obtaining the cartilage image data of the joint with a set of skin reference markers placed externally near the joint,
(b) obtaining the bone image data of the joint with a set of skin reference markers positioned in the same manner as the markers in (a),
(c) obtaining the optoelectrical image data of the joint with a set of skin reference markers positioned in the same manner as (a) and (b), and
(d) using the skin reference markers to correlate the images obtained in (a), (b) and (c) with each other, wherein each skin reference marker is detectable in the cartilage and bone data and the opto-electrical data.
135. The method of claim 127 , wherein said therapy comprises autologous chondrocyte transplantation, osteochondral allografting, osteochondral autografting, an implant, a replacement material, a scaffold, a regenerating material, a repair system, tibial corticotomy, femoral osteotomy or tibial osteotomy.
136. The method of claim 127 , wherein said therapy uses cartilage or bone tissue grown ex vivo, stem cells, an artificial non-human material, an agent that stimulates repair of said diseased tissue, or an agent.
137. The method of claim 127 , wherein said information is used to determine the thickness or other geometrical feature of a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold, or a tissue regenerating material or tissue repair system.
138. The method of claim 127 , wherein said information is used to generate a three-dimensional representation of cartilage thickness or a physical model of said normal or said diseased tissue or both.
139. The method of claim 138 , wherein said physical model is used to shape a tissue transplant, a tissue graft, a tissue implant, a tissue replacement material, a tissue scaffold or a tissue regenerating material or tissue repair system.
140. A method of treating a human joint disease involving cartilage comprising:
obtaining CT or MRI image data of a joint, wherein said image data includes both normal and diseased cartilage tissue;
electronically evaluating in three dimensions said image data to obtain information about volume, area, thickness, curvature, water content, sodium content, hyaluronic acid content, glycosaminoglycan content, signal intensity or relaxation time of said normal or diseased tissue, or three dimensional geometry of the joint, said electronically evaluating including evaluating said joint along at least two non-parallel planes; and
selecting or designing a therapy based on said three dimensional evaluation.Cited by (0)
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