title: Glenohumeral joint instability in normal adolescents. Incidence and significance.
abstract: One hundred and fifty asymptomatic shoulders in 75 schoolchildren were studied. The shoulders were tested for instability and a hyperextensometer was used to assess joint laxity. Signs of instability were found in 57% of the shoulders in boys and 48% in girls; the commonest sign was a positive posterior drawer test which was found in 63 shoulders. A positive sulcus sign was found in 17 shoulders and 17 subjects had signs of multidirectional instability. General joint laxity was not a feature of subjects whose shoulders had positive instability signs.
authors.affiliation: Black Notley Hospital, Braintree, Essex, England.
authors.forename: R J
authors.initials: RJ
authors.lastname: Emery
authors.forename: A B
authors.initials: AB
authors.lastname: Mullaji
mesh_terms: D000293:Adolescent; D001696:Biomechanical Phenomena; D005260:Female; D006801:Humans; D015994:Incidence; D007593:Joint Instability / Q000175:diagnosis / Q000453:epidemiology / Q000503:physiopathology*; D008297:Male; D017678:Sex Distribution; D012785:Shoulder Joint / Q000502:physiology*