Fig. 10From: Imaging of patellar fracturesOsteochondral fracture from lateral patellar dislocation in a 27-year-old woman. (a) Drawing shows an incomplete osteochondral fracture. (b) Axial fat-suppressed proton density MR image shows an osteochondral injury to the articular surface (open arrow) with bone marrow oedema of the medial patella (solid arrow) and lateral aspect of the lateral femoral condyle (arrowhead), in keeping with transient lateral patellar dislocation. Note also a moderate amount of joint effusion (star)Back to article page