Article

OBJECTIVE: To evaluate displacement of the coracoacromial ligament (CAL), using dynamic ultrasonography (US), for detecting instability-related impingement
caused by overhead activities. DESIGN: Between-group survey. SETTING: Department
of Physical Medicine and Rehabilitation in a tertiary care center. PARTICIPANTS:
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). INTERVENTIONS: Not applicable. MAIN
OUTCOME MEASURE: The displacement of the CAL was measured during throwing
simulation using dynamic US. Both shoulders of all subjects were evaluated.
RESULTS: 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. CONCLUSIONS:
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.
CI - Copyright 2010 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS