Medial Patellofemoral Ligament Reconstruction in the Pediatric Population: Skeletal Immaturity Does Not Affect Functional Outcomes but Demonstrates Increased Rate of Subsequent Knee Injury

• DOI: 10.1016/j.asmr.2022.05.007
• Publication Date: 2022-08-09T00:12:16Z
• Authors: Noah J. Quinlan; Kelly M. Tomasevich; Alexander J. Mort...; Taylor E. Hobson; Temitope Adeyemi; Allan K. Metz; Stephen K. Aoki
• Keywords: Medial Patellofemoral Ligament; Concomitant

To evaluate short- to mid-term-outcomes, including instability rates, following medial patellofemoral ligament (MPFL) reconstruction in skeletally immature versus mature pediatric patients.Patients younger than age 18 with recurrent patellar who underwent primary allograft MPFL by a single surgeon from 2013 2019 were identified. Skeletally patients all-epiphyseal drilling and metaphyseal at the Schöttle's point. Patients 1 year surgery contacted complete questionnaires, which included International Knee Documentation Committee score. Further data chart imaging review. Significance was determined P < .05.Of 118 eligible patients, 88 completed questionnaires. There 67 21 patients. The group older (15 vs 13 years, .001), predominantly female (67 43%, = .046), heavier (24.7 18.9, .001). Trochlear dysplasia (P .594), concomitant procedures .336), graft choice .274), follow-up length .107) did not differ, although more often suture tape augmentation (68 13%, Immature had greater rates of ipsilateral injury (35 16%, .043); redislocation rate differ (9 3%, .225). Mature likely respond "definitely yes or probably yes" when asked if they would undergo same care needed (96 76%, .007). At minimum 2-year follow-up, subsequent willingness remained significant (95 69%, .010). In multivariable elimination logistic regression model, skeletal maturity only variable associated .049).Pediatric undergoing have good comparable outcomes regardless maturity. However, lack may predispose them injury.III, case-control study.