Acromiohumeral distance in a seated position in persons with impingement syndrome

Autor: PT Hélène Moffet PhD, Christian Moisan, PT Luc J. Hébert PhD, Marie Dufour
Rok vydání: 2003
Předmět:
Zdroj: Journal of Magnetic Resonance Imaging. 18:72-79
ISSN: 1053-1807
Popis: Purpose To compare the acromiohumeral distance (AHD) of both shoulders in subjects with a unilateral shoulder impingement syndrome (SIS) and healthy subjects in a seated position during free shoulder movements of large amplitude. Materials and methods Using a 0.5-Tesla SIGNA-SP/i trade mark open-configuration magnetic resonance imaging (MRI) system, the AHD was measured at several arm positions, in a standardized seated position. Results In flexion (rest to 130 degrees ), the mean AHD of SIS varied from 8.3 to 2.8 mm, as compared to from 8.7 to 4.1 mm for asymptomatic contralateral shoulders. In abduction (rest to 110 degrees ), the AHD varied from 8.1 to 3.4 mm and from 8.8 to 4.6 mm for SIS and asymptomatic shoulders, respectively. The smallest AHD (P Conclusion In the critical arm elevation positions for impingement, AHD is discriminative for SIS, compared to asymptomatic shoulders and healthy ones. AHD at rest is a good indicator of the magnitude of its reduction in elevation, but not of the smallest AHD in arm elevation.
Databáze: OpenAIRE