肩関節疾患におけるウイングビューを用いた肩甲骨位置解析

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Purpose: We reported on a novel radiogram, “Wing view” for the evaluation of scapular motion in normal shoulders at the 32nd JSS annual meeting. The aim of this study was to analyze the scapular motion in abnormal shoulders with Wing views and to evaluate the pathology. Methods: We evaluated Wing views of 45 patients: 11 massive rotator cuff tears, 18 frozen shoulders and 16 recurrent dislocations of the affected shoulders with the other healthy shoulders. The average age of the time of the evaluation was 50.0 (17-76) years old. Shoulders were postured in 3 ways: (1) 0 degree of horizontal adduction, (2) 90 degrees of horizontal adduction and (3) maximal horizontal adduction. We measured 2 parameters by computerized image analysing software. SS: the angles between the spinal process and medial edge of the scapular, ST: anterior inclination angles of the scapula. We evaluated 2 parameters in 3 shoulder positions and statistically analysed comparison between the affected shoulder and the healthy shoulder. Results: Wing view radiograms of 9 massive rotator cuff tears, 15 frozen shoulders and 14 recurrent dislocations were eligible for evaluation. 7 patients were inadequate for analysis, because of posture difficulties. SS of the affected shoulders in massive rotator cuff tears and frozen shoulders were significantly higher compared to those of the healthy shoulders. ST of the affected shoulders was significantly higher in the same manner in those shoulders. Conclusion: The scapula moves more antero-laterally in massive rotator cuff tears and frozen shoulders.

肩関節疾患におけるウイングビューを用いた肩甲骨位置解析

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