Medial patellofemoral ligament avulsion injury
Diagnosis certain
Updates to Study Attributes
Findings
was changed:
Findings:
- large, predominantly suprapatellar joint effusion
Intercondylar Region:
- unremarkable anterior and posterior cruciate ligaments
Medial compartment:
- unremarkable cartilage and medial meniscus
- soft tissue oedema above the normal medial collateral ligament
Lateral compartment:
- bone contusion at the anterolateral aspect of the lateral femoral condyle
- unremarkable cartilage and lateral meniscus
- normal lateral collateral ligament and posterolateral corner
Patellofemoral compartment:
- small osseous avulsion of the medial patella rim
- thickened, oedematous medial patellofemoral ligament
- fluid extending into the vastus medialis myotendinous junction
- shallow trochlear groove, lateral trochlear inclination (LTI) was borderline 11-12°
Impression:
Typical findings of previous lateral patellar dislocation:
- medial patellar avulsion fracture
- medial patellofemoral ligament injury, tear of the medial retinaculum and vastus medialis oblique (VMO)
- bone contusion of the anterolateral femoral condyle
- decreased trochlear depth indicating trochlear dysplasia
- patella alta
Unable to process the form. Check for errors and try again.