| 摘要 |
A femoral prosthesis (20) adapted for insertion into the medullary cavity of a femur. The prosthesis (20) comprises a distal shaft (21), a neck portion (22) detachable from said distal shaft and a head (23) detachable from said neck portion; characterised in that the neck portion (22) comprises an elbow having means (29, 31) at either end to enable male female or female male mating with said distal shaft (21) and also with said head (23) to create tight interfitting therebetween, said elbow (22) being rotatable relative to said distal shaft (21) and head (23) prior to effecting said tight interfitting and while said distal shaft is fixed in situ. The distal shaft (21) is adapted with fast and slow screw threads (24, 25). |
