AANA/ISAKOS Knee and Shoulder Arthroscopy Course-Online Didactics (April 2024)-Patella Instability

Patella Instability_ My Current Surgical Treatment Algorithm

Video Transcription

Video Summary

Dr. Jason Ko discusses patella instability, emphasizing knee stability from bony anatomy, soft tissues like the medial patella femoral ligament (MPFL), and dynamic factors. Patella dislocation has a high recurrence, especially with risk factors like trochlear dysplasia and malalignment. MPFL reconstruction is preferred over repair due to better strength and success rates. Precise graft placement, proper tensioning, and imaging guidance are critical. Tibial tubercle osteotomy is indicated for significant bony abnormalities such as elevated TT-TG or patella alta. Trochleoplasty is rare, reserved for severe trochlear dysplasia cases. Rehabilitation involves early motion, with quadriceps recovery taking months.

Keywords

patella instability

MPFL reconstruction

trochlear dysplasia

tibial tubercle osteotomy

patella dislocation recurrence