Objective To investigate the technical points and clinical effect of total hip arthroplasty in patients with ankylosing spondylitis (AS) with hip joint replacement.Methods From January 2011 to December 2013,6 patients(9 hips) with AS hip joint were treated with total hip replacement. Postoperative follow-up,the clinical results were evaluated by Harris scoring criteria.Results All the 6 patients were followed up. Follow up time was 6~18 months. Postoperative Harris score increased from preoperative 14~58 points to the last follow-up 64~92 points. There were no obvious pain in 4 cases of hip joint,2 cases of mild pain in the thigh. In the fi rst 9 cases,the 6 side of the hip had a limited range of motion,and the range of fl exion and extension of the joint was 0 degrees ~30 degrees,the average of 15 degrees. The range of fl exion and extension of the hip joint were improved at 40 degrees ~100 degrees,with an average of 75 degrees. After the operation,the patients were able to take care of themselves,1 cases needed the walking aid,and 5 cases could do housework or light manual labor.Conclusion Total hip arthroplasty in the treatment of AS hip joint stiffness is effective,with less postoperative complications,and can signifi cantly improve the patient's joint function,relieve joint pain and improve the degree of joint activity. The quality of life of patients can be improved .%目的：探讨强直性脊柱炎（AS）髋关节强直患者行全髋关节置换术的技术要点及临床疗效。方法2011年1月至2013年12月收治的AS髋关节强直患者6例（9髋）行人工全髋关节置换。术后进行随访，采用Harris评分标准评价临床效果。结果6例患者均得到随访。随访时间6~18个月。术后患者Harris评分由术前的14~58分提高至末次随访时64~92分。术后4例髋关节无明显疼痛，2例大腿轻度疼痛，较术前明显缓解。术前6例9侧髋关节均有活动范围受限，关节屈伸活动范围0°~30°，平均15°。术后髋关节屈伸活动范围改善为40°~100°，平均75°，活动度明显增加。术后患者生活基本能够自理，需助行器辅助行走1例，可做家务或轻体力劳动5例。结论全髋关节置换治疗AS髋关节强直疗效确切，术后并发症少，可显著改善患者关节功能，解除关节疼痛、提高关节活动度。提高患者的生活质量。
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