Instrumented measurement of glenohumeral joint laxity and its relationship to passive range of motion and generalized joint laxity

被引:44
作者
Sauers, EL
Borsa, PA
Herling, DE
Stanley, RD
机构
[1] Arizona Sch Hlth Sci, Dept Sports Hlth Care, Phoenix, AZ 85017 USA
[2] Univ Michigan, Div Kinesiol, Shoulder Kinemat Res Lab, Ann Arbor, MI 48109 USA
[3] Oregon State Univ, Dept Mech Engn, Corvallis, OR 97331 USA
[4] Midvalley Orthopaed Clin, Albany, OR USA
关键词
D O I
10.1177/03635465010290020601
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
The purpose of this study was to objectively characterize in vivo glenohumeral joint laxity using an instrumented shoulder arthrometer. Secondary objectives were to examine the relationship of glenohumeral joint laxity with passive range of motion and generalized joint laxity. Fifty-one recreational athletes with no history of shoulder injury or long-term participation in overhead sports participated in this study. Anterior and posterior laxity data were obtained at displacement forces of 67, 89, 111, and 134 N. Bilateral passive shoulder range of motion measures were obtained, and a modified Beighton Mobility Score was used to quantify generalized joint laxity. There were no significant differences in glenohumeral joint laxity between the right and left shoulders (P values = 0.14 to 0.73). No significant differences in laxity were seen between directions (F-(1,F-4000) = 1.35, P = 0.25). However, significant differences were observed between force levels (F-(3,F-400) = 27.17, P < 0.0001). No moderate or stronger correlations between laxity, passive range of motion, and generalized joint laxity were seen. These data confirm the presence of a wide spectrum of symmetric laxity in subjects that fails to correlate strongly with passive range of motion or generalized joint laxity.
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页码:143 / 150
页数:8
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