Lateral patellar dislocation
30 years old with recent history of direct knee trauma
Loading Stack -
0 images remaining
Ill defined patchy areas of marrow edema signal eliciting bright STIR signal are seen involving the antero-lateral aspect of lateral femoral condyle as well as medial patellar articular facet, associated complete oblique fracture the later with partial separation is seen. The medial retinacular ligament is thickened showing intrinsic abnormal signal with no complete fibers disruption. Moderate knee joint effusion.
Acute transient lateral patellar dislocation with medial patellar retinaculum injury and medial patellar articular facet fracture.