AANA19 Knee Access Pass-Relationship between Graft Force and Tuberosity Position Following MPFL Reconstruction-Dr. Miho Jean Tanaka, M.D., MA.

Relationship between Graft Force and Tuberosity Position Following MPFL Reconstruction-Dr. Miho Jean Tanaka, M.D., MA.

Video Transcription

Video Summary

In this video summary, the speaker discusses a study on MPFL reconstruction in patients with patellar instability. The study aimed to evaluate the factors influencing MPFL graft loading using dynamic simulation and anatomical measurements. Functional models of 14 patients were analyzed during a squatting motion, comparing preoperative and postoperative states with different graft fixation options. The study found that patellar tracking and lateralization were improved after MPFL reconstruction, with significant differences up to 50 degrees of knee flexion. Graft forces were greatest at low flexion angles, and the tibial tuberosity position strongly correlated with graft tension. The study suggests that tibial tuberosity medialization may reduce excessive graft tension.

Asset Caption

Concurrent Scientific Session IV: Paper Presentations - Meniscus and Patellofemoral II 5.3.2019

Keywords

MPFL reconstruction

patellar instability

dynamic simulation

graft fixation options

patellar tracking