Instruments and instrument kit for latarjet procedure

Abstract

Disclosed is a positioning instrument that includes: two branches equipped at the proximal end thereof with an opposite jaw between which the graft is positioned, the two branches moving closer to one another by a translation movement; and a drill bush including a first hole and a second hole, separated by a distance and sized for the passage and guidance of a bone drill bit. Also disclosed are an instrument kit as well as a method for attaching a graft.

1 . A graft positioning instrument comprising:
 two branches equipped at a proximal end thereof with two opposite jaws between which a graft is positioned, the two branches being configured to move closer to one another by a translation movement, the two opposite jaws being attached detachably to remaining parts of the instrument; and   a drill bush including a first hole sized for passage and guidance of a first bone drill bit,   wherein the axis of the first hole borne by the drill bush is disposed in the median plane defined by the two opposite jaws.   
     
     
         2 . The instrument according to  claim 1 , wherein one of the jaws is equipped with an extension preformed with a bearing surface against a glenoid joint surface of a patient in order to position the bone graft on the scapula. 
     
     
         3 . The instrument according to  claim 2 , wherein said bearing surface of the extension of one of the jaws is preformed according to shapes and sizes of a glenoid joint surface of a patient. 
     
     
         4 . The instrument according to  claim 1 , wherein said jaws at the proximal end of the branches are preformed according to shapes and sizes of a bone of a patient. 
     
     
         5 . The instrument according to  claim 1 , wherein the drill bush includes a second hole, separated by a distance from the first hole, sized for the passage and guidance of a second bone drill bit. 
     
     
         6 . The instrument according to  claim 5 , wherein the drill bush is selected from a plurality of bushes. 
     
     
         7 . The instrument according to  claim 6 , wherein the plurality of bushes offers a plurality of distances between the first and second holes. 
     
     
         8 . An instrument kit comprising:
 the instrument according to  claim 1 ; and   at least one bone drill bit configured to be inserted into the hole provided for the instrument.   
     
     
         9 . The instrument kit according to  claim 8 , further comprising a drive tool configured to engage with a distal end of the at least one bone drill bit,
 wherein the distal end of the at least one bone drill bit does not impede sliding of the entire at least one bone drill bit through the hole of the drill bush.   
     
     
         10 . An instrument kit comprising:
 a first instrument according to  claim 1 ; and   a second instrument configured to one or more of remove and prepare a graft to be removed or already removed, the second instrument including two branches equipped at proximal ends thereof with opposite jaws between which the graft is positioned, said proximal ends being preformed with a first planar surface to define a first cutting plane to separate the graft from the bone to which the graft is attached.   
     
     
         11 . The instrument kit according to  claim 10 , wherein said proximal ends of the branches of the second instrument are preformed with a second planar surface perpendicular to the first planar surface to define a second plane to surface the graft portion coming into contact with the bone receiving said graft.