| 摘要 |
A glenoid prosthesis (14) can include a bearing shell (16) for accommodating the head of the humerus and a stem (18) extending at an angle from a reverse face (26) of the shell so as to engage the stem within a canal (C) in the lateral border of the scapula (S) for anchoring the glenoid prosthesis to the scapula. The prosthesis can be one piece or modular, where the shell and the stem can be chosen from a plurality of shapes and sizes to most closely match the natural anatomy of the joint. A fastening means can attach the shell to the stem and a wearing surface (56) can be secured to the face (24) of the shell. The stem can be sized slightly larger than the canal and forcibly inserted into the canal to anchor the glenoid prosthesis to the scapula. Flutes, barbs, threads, etc. on the stem can further secure the stem within the canal. |
