Fig. 7
From: Role of magnetic resonance imaging in the evaluation of the anterior knee pain
a–d MRI images for transient patellar dislocation with kissing bone contusions of the medial patellar facet and lateral femoral condyle and an interstitial tear of the medial patellar retinaculum as well as a trochlear dysplasia type B (predisposing factor). a Axial T2WI demonstrated fluid signal within the thickened medial patellar retinaculum (red arrow) and medial patellar surface osteochondral injury (green arrow). b Coronal STIR demonstrated a bright signal at the lateral femoral condyle (bone contusion) (red arrow). c, d Axial T2WIs demonstrated a trochlear depth of about 2 mm and a lateral inclination angle of 2.2°