Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC.
Arch Phys Med Rehabil. 2010 Feb;91(2):278-82. doi: 10.1016/j.apmr.2009.10.012.
To evaluate displacement of the coracoacromial ligament (CAL), using dynamic ultrasonography (US), for detecting instability-related impingement caused by overhead activities.
Between-group survey.
Department of Physical Medicine and Rehabilitation in a tertiary care center.
Volunteer high school volleyball players with unilateral shoulder pain (n=10) and volunteer asymptomatic high school volleyball players with identical training activities as control subjects (n=16).
Not applicable.
The displacement of the CAL was measured during throwing simulation using dynamic US. Both shoulders of all subjects were evaluated.
During throwing simulation, the displacement of the CAL in the painful shoulders of overhead athletes increased significantly greater than the displacement in the asymptomatic shoulder (3.0+/-0.7 mm and 2.2+/-0.4 mm, respectively; P=.017). No difference was identified between the displacements of the CALs of bilateral shoulders of the control group subjects.
Dynamic US, by measuring the displacement of the CAL during simulation of throwing, may be helpful in detecting abnormal humeral head upward migration in overhead athletes.
使用动态超声评估肩峰下韧带（CAL）的移位，以检测过头活动引起的与不稳定相关的撞击。
组间调查。
三级保健中心的物理医学与康复科。
有单侧肩部疼痛的志愿者高中排球运动员（n=10）和有相同训练活动的志愿者无症状高中排球运动员作为对照组（n=16）。
不适用。
在投掷模拟过程中使用动态超声测量 CAL 的移位。评估所有受试者的双侧肩部。
在投掷模拟过程中，过顶运动员疼痛肩部的 CAL 位移明显大于无症状肩部（分别为 3.0+/-0.7mm 和 2.2+/-0.4mm；P=.017）。对照组受试者双侧 CAL 的位移无差异。
通过在投掷模拟过程中测量 CAL 的移位，动态超声可能有助于检测过顶运动员肱骨头向上迁移的异常。
