Poster 263: MRI Evaluation of Pediatric Knee Morphology

Objectives: Abnormal patellar femoral morphology is a central risk factor for instability. While this relationship has been well studied in the adult population, less known about during skeletal development. Prior studies have demonstrated that of knee changes as child develops. We predict significant difference morphological development children with instability compared to without Our objective compare progression parameters patients Methods: An IRB approved retrospective chart review was performed measuring TT-TG, trochlear depth, and height (Caton Deschamps Index) skeletally immature between ages 5 16 who underwent an MRI their knee. Patients were age matched 1 2 ratio Exclusion criteria included osteoarthritis, prior surgery, unreadable MRIs. Morphological measurements then two group. Statistical analysis using paired sample t-tests p≤ 0.05 considered significant. plotted overtime at each group determine patient Results: A total 180 our analysis. Sixty 120 There all (TT-TG 10.50mm versus 15.72mm, p<0.01; depth 5.55 mm 3.77mm, Caton Index 1.07 1.19, p<0.01). TT-TG greater when As aged, increased instability, while it remained relatively stable most ages, however they mostly within normal limit (0.6-1.3). Conclusions: data demonstrates continues increase stable. Future can be aimed determining if intervening younger reducing patella these unstable result develop.