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KMID : 1028220180300030175
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Hip & Pelvis
2018 Volume.30 No. 3 p.175 ~ p.181
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Long-term Outcomes of Cemented Total Hip Arthroplasty in Patients with Ankylosing Spondylitis at a Minimum Follow-up of 10 Years
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Yim Soo-Jae
Park Yong-Bok
Kim Jun-Young
Park Sin-Hyung
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Abstract
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Purpose: This study was performed to evaluate long-term clinical and radiologic outcomes of cemented total hip arthroplasty in patients with ankylosing spondylitis.
Materials and Methods: A retrospective study of 12 patients (16 cases) diagnosed with ankylosing spondylitis undergoing total hip arthroplasty with cemented femoral stem from November 2002 to January 2006 with a minimum follow up of 10 years. Clinical outcomes were assessed using Harris Hip Scores and measures of pain and range of motion. Radiologic outcomes were assessed with serial plain X-ray. Fixation and stability of implant, enthesopathy of ischium and development of heterotopic ossification were also evaluated.
Results: Mean Harris Hip Scores significantly improved from pre-operative levels (58 points; range, 39?81 points) to post-operative (92 points; range, 68?100 points). Mean flexion contracture levels decreased from preoperative (13°) to post-operative (5°), and mean post-operative range of motion improved 106° compared to preoperative levels. No newly developed osteolysis lesions or implant loosening were observed in last follow up X-rays. One heterotopic ossification and one greater trochanter fracture were observed. Greater trochanter fracture was treated conservatively, and was resulted in bony union. No patients underwent revisions.
Conclusion: This study revealed positive long-term clinical and radiologic outcomes following total hip arthroplasty with cemented femoral stems in patients with ankylosing spondylitis patients.
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KEYWORD
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Ankylosing spondylitis, Total hip arthroplasty, Cemented femoral stem
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