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Japanese

Clinical Results of Bipolar Hemiarthroplasty in Idiopathic Necrosis of the Femoral Head Takahiro Niikura 1 , Yasuhiro Saegusa 1 , Tetsuo Nishikawa 1 , Masahiro Kurosaka 1 1Department of Orthopaedic Surgery, Kobe University School of Medicine Keyword: idiopathic necrosis of the femoral head , 特発性大腿骨頭壊死症 , Bipolar hemiarthroplasty , Bipolar人工骨頭置換術 , clinical result , 臨床成績 pp.165-171
Published Date 2003/2/1
DOI https://doi.org/10.11477/mf.1408100635
  • Abstract
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 The clinical results of 29 patients (30 hips) who had undergone Bipolar hemiarthroplasty for idiopathic necrosis of the femoral head between 5 and 18.5 years earlier were reviewed. The performance of 15 hips at follow-up times of 10 years or more was found to have been unsatisfactory based on JOA scores averaging 65.1 points. Factors affecting the clinical results included disease stage, reaming of the acetabulum, proximal migration of the outer head, and sinking of the stem. Twelve patients (13 hips) had satisfactory results based on JOA scores of 80 points or more, and reaming of the acetabulums had been performed in only 2 hips. We conclude that the indications for Bipolar hemiarthroplasty for idiopathic necrosis of the femoral head should be limited to cases that do not require reaming of the acetabulum and are diagnosed before the necrosis exceeds stage Ⅲ.


Copyright © 2003, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1286 印刷版ISSN 0557-0433 医学書院

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