Patent ID: 8597363

Claim:
Prosthetic material for replacing at least one portion of the surface of the radial glenoid of a radius, which material comprises: a prosthetic structure constituted by a plate extended by an endpiece, said plate being made up of a planar plate body located in a main plane, extended by a one-piece plate head, and said plate including a top face and a bottom face, and being provided with through orifices, said plate head itself being extended by said endpiece, wherein a bottom face of the plate head rises upwardly from the plate body toward the endpiece; and a set of screws for co-operating with said through orifices of said plate to fasten said prosthetic structure to a receiving bony material after resection of the portion of the radial glenoid that it is desired to replace and after positioning the bottom face of said plate against a cortex of said receiving bony material; wherein said endpiece comprises: a support extension made as one piece with said plate head and having an inner face extending downwardly from the plate head in a general plane that is offset angularly relative to the main plane of said plate body at an angle lying in the range 60° to 80° relative to the main plane of the plate body, said support extension having a front face opposed to said inner face, and a fitted articular panel having an outer surface that is situated extending the top face of said plate in the tangential continuity of said top face, and reproducing at least approximately at least a portion of the surface of the radial glenoid of the radius, said fitted articular panel having a rear face opposed to said outer surface, wherein the support extension and the fitted articular panel are provided with means enabling them to be secured to each other, which securing means comprise i) a slideway structure arranged in part on at least one of (a) the rear face and (b) sides of said fitted articular panel, and also in part on at least one of (a) the front face and (b) sides of said support extension, and ii) means for fastening said fitted articular panel in a correct position on said support extension, wherein in the correct position, the rear face of the fitted articular panel faces the front face of the support extension.