Patellar Dislocation

Among patients treated for recurrent patellar dislocation, patients with perioperative high-grade J sign had inferior clinical outcomes, more residual medial patellofemoral ligament residual graft and greater residual patellar maltracking compared with patients who had a low-grade J sign, according to study results.

The recurrent instability of the patella score can be used to stratify patients who sustain a first-time, lateral patellar dislocation into low-risk, intermediate-risk and high-risk categories for recurrence based on the age, skeletal maturity, trochlear dysplasia and tibial tubercle to trochlear groove/patellar length ratio, according to study results.

Patellofemoral instability is a challenging condition, with an incidence of up to 77/100,000 person/years in a high-risk population. Research on the rates of recurrence, sequelae and results of treatments for patellofemoral instability requires outcome measures that have been psychometrically validated in the patient population.

Satisfactory long-term results were seen after the crosse de hockey procedure for recurrent patellar dislocation, according to recently published results.

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BOSTON — Tibial tubercle distalization led to high rate of normalization of patellar height measurements, with a patellar stabilization of 94%, according to a presenter at the American Orthopaedic Society for Sports Medicine Annual Meeting.