| 摘要 |
<p>In an operation to repair a hip or other joint, a tunnel (T) is bored from behind the articular surface (S) through the neck (N) and head (H) of the femur so as to gain access to the articular space of the joint. A prosthesis may be inserted in the tunnel (T) so that a head portion (12) is located in the articular space. The head portion (12) may include a ceramic cap (14) for maintaining articular separation, a sac (16) for cushioning the articular surface (S) or a covering (18) for the articular surface (S). The prosthesis may be in the form of a sleeve member (2) screwed into the tunnel (T) and an inner member (8) screwed into the sleeve member (2) and carrying the head portion (12), the position of the inner member (8) being adjustable so as to locate the head portion (12) as desired in the articular space.</p> |
