Cup for restoring normal operation to hip joint, comprises cup with lower protuberance to take up space left by surgical removal of damaged bone and hemispherical housing to receive prosthesis femur

摘要

The cup (5) has upper and lower protuberances which take up space left by surgical removal of degraded bone, and a hemispherical housing to receive a prosthesis femur. The periphery of the housing has a snap action retaining rim and locating projections (7,8) to ensure the correct reception of the prosthesis femur and the cup has a variety of holes (21,22,23) for fixing screws