2021 Annual Meeting Knee Access Pass-MPFL length change patterns in asymptomatic knees of patients with contralateral patellar instability

MPFL length change patterns in asymptomatic knees of patients with contralateral patellar instability

Video Transcription

Video Summary

In this video, the speaker discusses the length changes of the native patella femoral ligament (NPFL) in asymptomatic knees of patients with contralateral patellar instability. The study aimed to assess the influence of morphologic risk factors on NPFL length changes. Dynamic CT imaging was performed on 11 knees, and measurements of trochlear dysplasia, patella alta, and contralateralization were taken. The NPFL length was found to be greatest at zero degrees of knee flexion, with significant differences compared to 20-50 degrees of flexion. The number of morphologic risk factors present in the knee was associated with greater anisometry of the NPFL. Further studies are needed to understand the implications for graft placement and NPFL reconstruction techniques. Dr. Andy Kosgaria and John Elias were acknowledged for introducing the speaker to dynamic CT.

Asset Caption

Dr. Miho Tanaka

Keywords

native patella femoral ligament

asymptomatic knees

contralateral patellar instability

morphologic risk factors

NPFL length changes