投球障害肩における関節鏡所見と手術成績 : 前上方関節包の形態を中心に

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The purpose of this study was to classify the shoulder with the throwing injury according to the arthroscopic findings and to assess their outcome of arthroscopic surgery. 79 shoulders that had been operated on from 2003 to 2008 were evaluated. The mean age at the time of surgery was 22.6 years old. According to the arthroscopic findings, we divided 79 cases into 6 types: Type 1: detachment of antrosuperior labrum-17 cases. Type 2: there was a big recess between IGHL and MGHL-21 cases. Type 3: type 2 plus MGHL become thin and fragile-17 cases. Type 4: type 3 plus SGHL and RI were widened-13 cases. Type 5: there was only loose capsule-6 cases. Type 6: there was only posterior tightness-5 cases. Treatment consisted mainly of reconstruction of the anterosuperior lesion including MGHL, SGHL and labrum. The results were evaluated by the rate of return to complete functionality. The ratio returning to their preinjury performance level were type1-77.8%(7/9), type2-72.7%(8/11), type3-37.5%(6/16), type4-50%(4/8), type5-50%(1/2), type6-0%(0/5). We obtained satisfactory results in type1 and 2 cases.
2009-07-27