H. Maenpaa et al., RECURRENCE AFTER PATELLAR DISLOCATION - REDISLOCATION IN 37 75 PATIENTS FOLLOWED FOR 6-24 YEARS/, Acta orthopaedica Scandinavica, 68(5), 1997, pp. 424-426
75 patients had closed treatment for a primary unilateral acute patell
ar dislocation. All patients were studied clinically, radiographically
and for isokinetic thigh muscle performance a median of 11 (6-24) yea
rs later. During the follow-up, 37 patients had experienced recurrent
dislocations. The functional outcomes were similar in patients with or
without recurrence. Radiographically unstable patellar morphology, sp
ontaneous reduction of the dislocation and low volume of hemarthrosis
predisposed to recurrence.