Objective To investigate the effect of total hip arthroplasty(THA)with the fourth-generation ceramic-on-ceramic bearings prosthesis.Methods The 30 patients of end-stage hip disease were treated by THA using the fourth-generation ceramic-on-ceramic bearings prosthesis.Complications were recorded,the hip function and mobility level were assessed by using Harris score and UCLA score.The abduction angle and anterior inclination angle of the acetabular cup prosthesis were measured to evaluate whether the acetabular cup installation was within the safe zone.Results All patients were followed up for 24～46 months.All incisions healed in one-stage,and no nerve or vascular injury occurred.Abnormal joint sound occurred in 1 hip.At the last follow-up,none of the patients had thigh pain,and the femur and acetabular prostheses were obtained ingrown fixation,and no revision surgery was performed due to oste-olysis,prostheses loosening or infection.Twenty-nine patients returned to normal gait,and 1 case had mild claudica-tion.At the last follow-up,Harris scores were increased from preoperative 28～68(47.83±13.45)points to 85～98(92.60±3.12)points(P＜0.01),of which 25 cases were excellent and 5 cases were good,the excellent-good rate was 100％.The UCLA scores were increased from 2～6(4.27±1.51)points before surgery to 5～10(7.53±1.78)points at the last follow-up(P＜0.01).At the last follow-up,the acetabular abduction angle was 28°～55°(40.8°±7.6°),the acetabular anterior inclination angle was 10°～26°(16.0°±4.1°),and the acetabular cups were all in the safe zone.Conclusions In THA treatment of end-stage hip disease,the fourth-generation ceramic-on-ceramic bear-ings prosthesis has better joint function recovery and few postoperative complications.
total hip arthroplastythe fourth-generation ceramicceramic bearings prosthesisosteolysisprosthesis loosening
维普
万方数据
