| 摘要 |
The lined femoral cup of the invention is used in a new reverse hip prosthesis wherein the cup is affixed to the femur and the ball is affixed to the acetabulum. This permits installation of the liner in the factory instead of the operating room. Prior art hip prostheses require installation of the liner in the operating room because the cup must be affixed to the acetabulum, usually by screws, before the liner can be installed. Thus, in a preferred embodiment of the invention the liner is installed under high pressure in the factory. In a second embodiment, a threaded cap is used which permits replacement of the liner without removing the cup from the patient. |
