Leroux J L, Codine P, Thomas E, Pocholle M, Mailhe D, Blotman F
Department of Physical Medicine, Lapeyronie Hospital, Montpellier, France.
Clin Orthop Relat Res. 1994 Jul(304):108-15.
The purpose of this study was to determine whether imbalance of the internal and external rotator musculature of the shoulder were etiological factors implicated in impingement syndrome. Shoulder torque measurements were obtained from 15 asymptomatic volunteers and 30 patients with chronic impingement syndrome, 15 of whom were evaluated after arthroscopic anterior acromioplasty. Isokinetic strength was assessed using the Biodex system in a modified position (in the plane of the scapula and in 45 degrees abduction) with test speeds of 60 degrees and 180 degrees per second. Internal and external rotator strength values and ratios were calculated for both peak torque and average power. Shoulder rotational strength values and the internal rotator/external rotator ratio were significantly higher in the dominant and nondominant control group shoulders than in the involved and uninvolved impingement shoulders for operated on and nonoperated on patients. These data demonstrate that primary change in the normal internal rotator/external rotator ratio of the shoulder is an etiological factor implicated in impingement syndrome not modified by anterior acromioplasty.
本研究的目的是确定肩部内外旋转肌的失衡是否为撞击综合征的病因。从15名无症状志愿者和30名慢性撞击综合征患者身上获取肩部扭矩测量值，其中15名患者在关节镜下前路肩峰成形术后接受了评估。使用Biodex系统在改良位置（肩胛平面和外展45度）以每秒60度和180度的测试速度评估等速肌力。计算峰值扭矩和平均功率的内旋肌和外旋肌力量值及比率。对于接受手术和未接受手术的患者，优势侧和非优势侧对照组肩部的肩部旋转力量值以及内旋肌/外旋肌比率显著高于受累和未受累的撞击肩部。这些数据表明，肩部正常内旋肌/外旋肌比率的原发性改变是撞击综合征的一个病因，且不受前路肩峰成形术的影响。
