Bristow変法手術後の等速及び等尺性肩内外旋筋力

DOI 被引用文献1件
  • 相澤 利武
    Department of Orthopaedic Surgery, Senboku Kumiai General Hospital
  • 阿部 義幸
    Department of Orthopaedic Surgery, Tohoku University School of Medicine
  • 井樋 栄二
    Department of Orthopaedic Surgery, Tohoku University School of Medicine
  • 熊谷 純
    Department of Orthopaedic Surgery, Tohoku University School of Medicine
  • 桜井 実
    Department of Orthopaedic Surgery, Tohoku University School of Medicine

書誌事項

タイトル別名
  • Isokinetic and Isometric Muscle Strength after Modified Bristow's Surgery

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抄録

Modified Bristow's procedure is one of the satisfactory surgeries for a recurrent anterior dislocation, but the muscle strength of internal rotation decreases after it. This study is an attempt investigate the effects of exercise velocity on the rotational muscle strengths of the shoulder after a modified Bristow's procedure. Seventeen patients (2 females,15 males,9 right shoulders,8 left shoulders) were examined. Their mean age at the operation was 25 years (ranging from 18 to 40). The average follow-up period from the operation was 1.2 years. Their dominant side was the right. As a control,10 normal individuals were examined. Using a Kawasaki Heavy Industries Ltd's REHAMATE R -200, the muscle strengths of internal rotation (IR) and external rotation (ER)were measured at 90°shoulder abduction. The range of motion was from IR 45' to ER 45°. The angular testing velocity was 60 deg/sec,120 deg/sec and 180 deg/sec. The isometric muscle strength was measured at IR 45°,0°and ER 45°per 3 sec. In those cases operated on the left side, the peak torque of ERs decreased by 4% at 60 deg/sec,2% at 120 deg/sec and 17% at 180 deg/sec. In those cases operated on the right, the peak torque of ERs decreased by 20%,14% and 6% respectively. The mean torque of ERs decreased at almost the same degrees. The peak torque of IRs operated on the left side decreased by 17% at 60 deg/sec,12% at 120deg/sec and 14% at 180 deg/sec. The peak torque of IRs operated on the right side decreased by 21%,14% and 14% respectively. The mean torque of IRs decreased at almost the same degrees. The isometric muscle strength differed in each group. In conclusion, isokinetic muscle strength tends to diminish more the lower the velocity is.

収録刊行物

  • Katakansetsu

    Katakansetsu 18 (2), 288-291, 1994

    Japan Shoulder Society

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