| 摘要 |
PCT No. PCT/AU91/00244 Sec. 371 Date Feb. 1, 1993 Sec. 102(e) Date Feb. 1, 1993 PCT Filed Jun. 6, 1991 PCT Pub. No. WO91/18559 PCT Pub. Date Dec. 12, 1991A femoral prosthesis adapted for insertion into the medullary cavity of a femur. The prosthesis including a distal shaft, a neck portion detachable from the distal shaft and a joint head detachable from the neck portion. The distal shaft having two spaced tapered threaded portion thereabout with differing pitch to prevent undesired counter rotation of the prosthesis thereby preventing axial withdrawal of the distal shaft from the femur.
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