The influence of posterior glenohumeral joint capsule tightness and humeral retroversion on clinical measurements / Dayana P. Rosa, Paula R. Camargo, John D. Borstad

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Bibliografía: p. 152-153

Objectives: To assess the influence of posterior capsule tightness and humeral retroversion on shoulder motion measurements.
Design: Cross-Sectional study.
Setting: Controlled university laboratory.
Participants: 75 asymptomatic individuals were assigned to one of 4 groups: control (n ¼ 28); posterior capsule tightness only (n ¼ 17); humeral retroversion only (n ¼ 15); and combined posterior capsule tightness and retroversion (n ¼ 15).
Main outcome measures: Six clinical measurements were compared across groups: bicipital forearm angle, low flexion, glenohumeral internal and external rotation, horizontal adduction and extension with internal rotation.
Results: The group with both adaptations had decreased internal rotation compared to the control and retroversion only groups, as well as increased external rotation compared to the control and posterior capsule only groups. There were no between group differences for the horizontal adduction or extension with internal rotation measurements. The retroversion only and combined groups showed decreased bicipital forearm angle compared with the control and posterior tightness groups. The posterior capsule
tightness and combined groups demonstrated decreased low flexion compared to the other groups.
Conclusion: The combination of osseous and soft tissue adaptions alter shoulder motion measures more than a single adaption, making a comprehensive clinical assessment vital when managing individuals with shoulder pain.