HE Zhi-yong, DI Zheng-ling and TAO Kun
Accepted Abstracts: Rheumatology & Orthopedics
Objective: To study the short-term results of hip resurfacing arthroplasty(HRA) in patients with Osteoporosis ankylosing spondylitis(AS) , exploring the indication and technology in this surgery. Methods: From February 2006 to April 2010,21 patients (25 hips) with ankylosing spondylitis were treated with the total hip resurfacing arthroplasty. Among them, 19 were male, and 2 were female, with an average age of 33.5 years (range from 16~53 years). The preoperative and postoperative comparative study was conducted on pain, range of motion, correction of deformity and total function evaluation. 20 Patients were followed up for averages were conducted. The clinical results were evaluated by the Harris hip scoring system. Results: 1 patients were lost. 20 Patients were followed up for an average period of 31.4 months (range,16 to 66 months).There were no heterotopic ossification , no femoral neck fracture, no dislocation, no infection and no revision in all patients. From preoperation to present , the mean flexion angle of hip was improved from 20�°(range,0~75�°) to 80�°(range~35~105�°) ,the mean abducting angle of hip was improved from12�°(range,0~30�°) to 30�°(range,15~55�°),and the average Harris hip score improved significantly from 32.1(2~47) to 86(46~94), 10 hips were excellent,3 hips were good,1 hip was poor. Conclusions: The total hip resurfacing arthroplasty is an effective solution for the problems of the younger and active patients with AS, even with osteoporosis. The short-term results are satisfied. It was very significant to analysis the patients in different conditions, to choose proper strategy.
