Tuoheti Yilihamu, Itoi Eiji, Minagawa Hiroshi, Wakabayashi Ikuko, Kobayashi Moto, Okada Kyoji, Shimada Yoichi
Department of Orthopedic Surgery, The Second Teaching Hospital of Xinjiang Medical University, Xinjiang, Japan.
J Shoulder Elbow Surg. 2005 Jan-Feb;14(1):11-5. doi: 10.1016/j.jse.2004.04.009.
It is known that thinning and lengthening of the subscapularis tendon occur in shoulders with recurrent anterior dislocation. However, no studies have been performed to quantify the morphologic changes of the subscapularis tendon under such conditions. We retrospectively measured the thickness and cross-sectional area of the subscapularis tendon by use of magnetic resonance imaging in 22 shoulders in 11 patients with unilateral recurrent anterior dislocation of the shoulder. The contralateral shoulder in each patient served as a control. The thickness and cross-sectional area of the subscapularis on the affected side were smaller than those on the normal side (6.5 +/- 1.7 mm vs 8.0 +/- 1.9 mm, P = .001, and 388.6 +/- 120.0 mm 2 vs 547.9 +/- 128.5 mm 2 , P = .0001, respectively). We conclude that the subscapularis tendon undergoes an 18.7% decrease in thickness and a 29.1% decrease in cross-sectional area in shoulders with recurrent anterior dislocation.
已知复发性肩关节前脱位的肩部会出现肩胛下肌腱变薄和延长的情况。然而，尚未有研究对在这种情况下肩胛下肌腱的形态学变化进行量化。我们回顾性地利用磁共振成像测量了11例单侧复发性肩关节前脱位患者的22个肩部的肩胛下肌腱厚度和横截面积。每位患者的对侧肩部作为对照。患侧肩胛下肌腱的厚度和横截面积均小于正常侧（分别为6.5±1.7mm对8.0±1.9mm，P = .001；388.6±120.0mm²对547.9±128.5mm²，P = .0001）。我们得出结论，复发性肩关节前脱位的肩部，肩胛下肌腱厚度减少18.7%，横截面积减少29.1%。
