Prosthetic part

Abstract

A prosthetic part includes an anchorage section that is introducable into a bone recess, the anchorage section comprising at least partially a cage structure, a plate section that extends in a lateral direction beyond the anchorage section, and a supporting section for a joint part. The plate section is provided with at least one opening or at least one indentation, through which a severing instrument is introducable to cut a connection between the anchoring section and corticalis substance of a bone. The plate section has a marginal region having a circumferential arrangement of indentations, and the at least one opening or the at least one indentation is elongated and extends parallel to an edge of the plate section.

I claim:  
     
         1 . A prosthetic part comprising: 
 a plate section ( 16 ) having a substantially rectangular marginal contour seen from above,    wherein two longitudinal edges of the plate section ( 18 ) are each provided with at least one opening ( 60 ,  62 ) or at least one indentation ( 64 ), and the at least one opening ( 60 ,  62 ) or the at least one indentation ( 64 ) is elongated and extends parallel to an edge of the plate section.    
     
     
         2 . A prosthetic part comprising: 
 an anchorage section ( 26 ,  50 ) that is introducable into a bone recess ( 14 ), the anchorage section ( 26 ,  50 ) comprising at least partially a cage structure ( 26 ), a plate section ( 16 ) that extends in a lateral direction beyond the anchorage section ( 26 ,  50 ), and    a supporting section ( 22 ) for a joint part ( 24 ),    wherein the plate section ( 16 ) is provided with at least one opening ( 60 ,  62 ) or at least one indentation ( 64 ), through which a severing instrument is introducable to cut a connection between the anchoring section and corticalis substance of a bone, and wherein the plate section ( 16 ) comprises a marginal region having a circumferential arrangement of indentations ( 64   a ,  64   b ), and    wherein the at least one opening ( 60 ,  62 ) or the at least one indentation ( 64 ) is elongated and extends parallel to an edge of the plate section.    
     
     
         3 . The prosthetic part as set forth in    claim 2   , wherein the circumferential arrangement of indentations ( 64   a ,  64   b ) comprises a succession of indentations ( 64   a ,  64   b ) of differing depths.  
     
     
         4 . The prosthetic part as set forth in    claim 1   , wherein the at least one opening ( 60 ,  62 ) or the at least one indentation ( 64 ) is convex.  
     
     
         5 . A prosthetic part comprising: 
 an anchorage section ( 26 ,  50 ) that is introducable into a bone recess ( 14 ), said anchorage section comprising at least partially a cage structure ( 26 ),    a plate section ( 16 ) that extends in a lateral direction beyond the anchorage section ( 26 ,  50 ), and    a supporting section ( 22 ) for a joint part ( 24 ),    wherein the plate section ( 16 ) is provided with at least one opening ( 60 ,  62 ) or at least one indentation ( 64 ) in the vicinity of the edges of the plate section, through which a severing instrument in introducable to cut a connection between the anchoring section and corticalis substance of a bone,    wherein the plate section ( 16 ) comprises a marginal region having a circumferential arrangement of indentations ( 64   a ,  64   b ),    wherein the at least one opening ( 60 ,  62 ) or the at least one indentation ( 64 ) is elongated and extends parallel to an edge of the plate section, and    wherein the circumferential arrangement of indentations ( 64   a ,  64   b ) comprises a succession of indentations ( 64   a ,  64   b ) of differing depths.    
     
     
         6 . The prosthetic part as set forth in    claim 5   , wherein the at least one opening ( 60 ,  62 ) or the at least one indentation ( 64 ) is convex.