| 摘要 |
A three-component acetabular cup assembly for receiving and releasably retaining the femoral head component of a prosthesis, said cup assembly comprising an outer metal shell, a cup-shaped inner bearing of substantially rigid plastic fixedly secured within said metal shell, and a locking ring made from the same plastic as the inner bearing; the outer surface of the bearing and the inner surface of the locking ring having cooperating configurations forming a secure but releasable latch.
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