Augmented glenoid component having an interrupted surface

摘要

A glenoid component (10), which can be secured to a glenoid surface (12) of a scapula (14) so as to provide a bearing surface (44) for a head portion (20) of a humerus (18), includes a body (22) having a first surface (32) configured to contact the glenoid surface (12) of the scapula (14) and a second surface (26) configured to receive the head portion (20) of the humerus (18). The glenoid component (10) also includes an interruption such as a buttress (24) extending from the body (22). The interruption (24) is configured to be received in a like-configured notch formed in the glenoid surface (12) of the scapula (14). The interruption (24) helps prevent movement of the glenoid component (10) relative to the glenoid surface (12) of the scapula (14) after implant. The body (22) also may include anchoring (38) extending from the body (22) for penetrating the glenoid surface (12) of the scapula (14) so as to help secure the body (22) to the glenoid surface (14) of the scapula (14). The glenoid component (10) is used in one application to help correct bone defects and in another application for wear.