Chinese Journal of Tissue Engineering Research ›› 2010, Vol. 14 ›› Issue (22): 4056-4059.doi: 10.3969/j.issn.1673-8225.2010.22.016

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Total hip arthroplasty for ankylosing spondylitis in 24 cases

Li Qi-yi1, Jin Jin1, Weng Xi-sheng1, Lin Jin1, Qiu Gui-xing1, Zhang Yi-dan2   

  1. 1 Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing  100730, China; 2 Department of Clinical Medicine, Peking Union Medical College Hospital, Beijing  100730, China
  • Online:2010-05-28 Published:2010-05-28
  • Contact: Jin Jin, Professor, Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China Jinjin9010@126.net
  • About author:Li Qi-yi☆, Doctor, Attending physician, Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China liqiyi@medmail.com.cn

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Abstract:

BACKGROUND: Total hip arthroplasty (THA) has become an effective treatment to improve joint function and life quality of patients with ankylosing spondylitis (AS), but there are high risks compared with THA for other diseases.
OBJECTIVE: To evaluate the clinical efficacy of THA in treating the hip joint involvement of AS.
METHODS: A total of 24 AS patients (33 hip joints) underwent THA. All the patients had obvious restriction in daily life before operation: 9 cases had to walk with the help of crutches, 1 case had to sit on wheelchair, 22 cases had severe pain and 10 cases (15 hip joints) were stiff. The mean Harris score was 41.9 averagely and the mean total range of the hip joint movement was 45.4° before surgery. The prosthesis involved biotype in 18 cases (24 hips), cemented 3 cases (5 hips), and mixed type 3 cases (4 hips) and made of metal alloy shaft and polymer polyethylene liner.
RESULTS AND CONCLUSION: All patients were followed up with an average of 23 months. Pain was totally relieved in 28 patients (84.9%) at the last time of follow-up. Only one patient still needed a crutch to walk. The Harris score of hip joint was 80.1 averagely, including 10 hips excellent, 18 good, 4 passable, and 1 poor, with an excellent and good rate of 84.8%. The mean total range of the hip joint movement was 159.6° after surgery. The subjective satisfactory rate was 87.5%. According to Brooker system, 2 hips (6%) appeared heterotopic ossification, one was of Class I and the other Class III. There was no dislocation, infection, fracture, nerve injury or loosening of the prosthesis. No revision was performed. THA is an effective method in treating affected hip joint of AS. It can relieve the pain of the joint, restore the hip function and improve the life quality of the AS patients.

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