Best Practice Case Studies-Patellar Subluxation

Video Transcription

Video Summary

A 19-year-old male is evaluated for right thigh weakness and walking difficulty, two years post-patellar dislocation, with concern for patellar subluxation. MRI of the knee shows a bone contusion at the medial patellar facet and lateral femoral condyle, typical of "kissing contusion" from dislocation. A mild sprain in the medial patellar retinaculum is noted. Trochlear dysplasia, a risk factor for dislocation, is discussed alongside its assessment challenges due to positioning. The tibial tuberosity to trochlear groove distance is measured to evaluate the displacement, using specific imaging lines to calculate this crucial parameter.

Meta Tag

Edition 2nd Edition

Related Case 2nd Edition, CASE 26

Topic Knee

Keywords

2nd Edition, CASE 26

2nd Edition

Knee

patellar dislocation

kissing contusion

trochlear dysplasia

tibial tuberosity

MRI knee