５年以上経過したＢａｔｅｍａｎ型人工骨頭置換術症例の検討

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  • A follow-up study for more than five years of the Bateman-type hemi-arthroplasty.

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Hemi-arthroplasty with a Bateman-type prosthesis has been performed on 53 cases of either femoral neck fracture or osteonecrosis of the femoral head since 1981 in our department. Of these, a long-term follow-up study of more than five years was done on 15 joints of 15 cases. The sex distribution was 3 men and 12 women, aged from 40 to 79 (mean: 61) . The period of follow-up ranged from 61 to 96 (mean : 76) months.<BR>Clinical evaluation by the JOA assessment criteria revealed excellent results in 5 cases and good in 10. The average score was 86.2.<BR>As to radiological results, there were 6 cases of‘clear zone’around the stem, and 3 cases of distal migration of the stem; however, there were no cases of proximal migration of the outer head. Based on the above, the overall postoperative results were considered to be quite satisfactory.

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