Review Question - QID 920

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Traumatic Anterior Shoulder Instability (TUBS) Epidemiology Demographics QID: 920 (OBQ07.259)

QID 920 (Type "920" in App Search)

What factor has highest risk for recurrent instability following a traumatic anterior shoulder dislocation?

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History of contralateral shoulder dislocation

98/1343

Young age (<20-years-old) at time of dislocation

81%

1090/1343

Dislocation of the dominant shoulder

88/1343

Family history of shoulder instability

25/1343

History of patella instability

27/1343

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Regardless of the period of immobilization, a specific exercise program, or immobilization/activity restriction, recurrence rates remain high. The only consistent predictor of recurrence has been the age of the patient, reflecting the activity demands of the patient.

In young patients (<25 years old), recurrence rates have ranged from 60-94%. Family history confers a 34% risk of recurrence, while dislocation in the contralateral shoulder is seen in 25% of recurrently unstable patients according to one study in JBJS (Hovelius et al, 2008). No difference in dominant and non-dominant extremities was noted.