Key result
Prior shoulder instability in young athletes correlates with increased posterior translation and positive apprehension signs.
Why the study?
Do physical examination findings correlate with a history of shoulder instability in young athletes?
Cross-Sectional (n=711)
Blinded
Do physical examination findings correlate with a history of shoulder instability in young athletes?
Specific physical examination findings, including posterior translation, apprehension, relocation, and sulcus signs, significantly correlate with a history of shoulder instability in young athletes.
Exam findings correlated with prior instability history are hypothesis-generating; prospective follow-up needed to assess predictive value.
The goal of this study was to evaluate physical examination findings in a healthy cohort and determine potential correlations with a history of shoulder instability. A cross-sectional analysis was performed using the baseline data for an ongoing prospective cohort study to examine the risk factors for shoulder instability. A complete history of shoulder instability events was obtained, and a blinded physical examination was performed. The cohort comprised 711 patients (627 men, 84 women) with a mean age of 18.8 years. A total of 100 patients had a history of shoulder instability. Patients with a history of instability were more likely to have increased posterior translation (P=.010), positive apprehension sign (P=.003), positive relocation sign (P=.007), and sulcus sign (P=.017).
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Owens et al. (2011) conducted a cross-sectional in Shoulder instability (n=711). History of shoulder instability vs. No history of shoulder instability was evaluated on Physical examination findings (posterior translation, apprehension sign, relocation sign, sulcus sign). A history of shoulder instability in young athletes correlated with increased posterior translation (P=.010), positive apprehension (P=.003), relocation (P=.007), and sulcus signs (P=.017).
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