肩石灰性腱板炎手術症例の臨床的特徴

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The purpose of this study was to analyze the clinical outcome of arthroscopic surgery for calcific tendinitis of the shoulder. Forty-one patients with a mean age of 55.2 years, enrolled in this study were available for follow-up. ASD was performed in 78% of the cases and all patients underwent rotator cuff repair after removal of the calcific tissue. JOA score and range of motion were assessed pre-and postoperatively. The location of calcification was investigated by using 3DCT. In order to show the location of calcification, the subacromial space was divided into nine areas including the footprint of the rotator cuff and the upper surface of the humeral head. All patients showed the positive impingement sign. JOA score was significantly improved from 74.4 ± 10.4 preoperatively to 97.3 ± 2.3 at final follow-up. Preoperatively, ranges of motion were significantly restricted in forward flexion, external rotation and internal rotation compared to the contra-lateral side. The motions in forward flexion and internal rotation were significantly increased at the time of follow-up. Calcification was observed in the centre-lateral area (area X) in 91% of the cases. In this study, characteristic clinical features were observed preoperatively, including the impingement sign, motion loss with pain at internal rotation at 90° abduction and the incidence of calcification in area X. These symptoms were improved after arthroscopic surgery including ASD, removal of calcific tissue and cuff repair.

肩石灰性腱板炎手術症例の臨床的特徴

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