Computed Tomography
Foal 2: Plain computed tomography (CT) of the L stifle revealed marked effusion of the LFTJ with irregularity of the subchondral bone of the lateral femoral condyle (LFC) and the lateral tibial condyle (Figure 1 d). Contrast arthrogram revealed disruption of the LM caudally, with lateral displacement (Figure 1 e). Disruption of the meniscofemoral ligament was present at its attachment to the caudal horn of the LM (Figure 1 f). The cranial lateral meniscotibial ligament (MTL) was also irregular in appearance.
Foal 3: Marked effusion was present within all three compartments of the R stifle. The proximal, lateral articular margin of the tibia was mildly irregular. The LM was diffusely abnormal with several tears in multiple orientations within the lateral and caudal aspects (Figure 3 b). A large, pyramidal shaped tear of the axial aspect of the caudal horn of the LM was present (Figure 3 c). The caudal lateral MTL was not clearly identified and a central region of hypoattenuation was present in the cranial lateral MTL (Figure 3 d).