Association of generalized joint hypermobility with a history of glenohumeral joint instability

J Athl Train. May-Jun 2010;45(3):253-8. doi: 10.4085/1062-6050-45.3.253.

Abstract

Context: Little is known about the relationship among sex, generalized joint hypermobility, and glenohumeral joint instability.

Objective: To examine the relationship among sex, generalized joint hypermobility scores, and a history of glenohumeral joint instability within a young, physically active cohort and to describe the incidence of generalized joint hypermobility within this population.

Design: Cross-sectional cohort study.

Setting: United States Military Academy at West Point, New York.

Patients or other participants: Of the 1311 members of the entering freshman class of 2010, 1050 (80%) agreed to participate.

Main outcome measure(s): Generalized joint hypermobility was assessed using the Beighton Scale. A history of glenohumeral joint instability was identified via a baseline questionnaire.

Results: Most participants (78%) had no signs of generalized joint hypermobility. Only 11 volunteers (1.5%) had Beighton Scale scores of 4 or greater. Logistic regression analysis revealed a relationship between generalized joint hypermobility and a history of glenohumeral joint instability (P = .023). When sex and race were controlled, those with a total Beighton Scale score of >or=2 were nearly 2.5 times as likely (odds ratio = 2.48, 95% confidence interval = 1.19, 5.20, P = .016) to have reported a history of glenohumeral joint instability. A relationship was observed between sex and nearly all individual Beighton Scale items. Although women had higher total Beighton Scale scores than men, sex (P = .658) and race (P = .410) were not related to a history of glenohumeral joint instability when other variables in the model were controlled.

Conclusions: In these participants, generalized joint hypermobility and a history of glenohumeral joint instability were associated.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Confidence Intervals
  • Cross-Sectional Studies
  • Female
  • Health Status Indicators
  • Humans
  • Incidence
  • Joint Instability / diagnosis*
  • Joint Instability / epidemiology
  • Joint Instability / pathology
  • Logistic Models
  • Male
  • Military Personnel
  • New York / epidemiology
  • Odds Ratio
  • Prospective Studies
  • Psychometrics
  • Risk Assessment
  • Risk Factors
  • Shoulder Joint / injuries*
  • Shoulder Joint / pathology
  • Surveys and Questionnaires
  • Young Adult