Results: Ex tra-and/or intra-articular adhesion was found in 26 cases, over-correc tion of anteversion of the femoral neck found in 6 cases, and unknown rea son in 2.

• 方法：根据本组34例髋关节成形术后僵直的临床特点与影像学检查，判定发生关节僵直的原因。