9 month old male Rhodesian Ridgeback

Findings

Left stifle: There is lateral luxation of the patella, and the trochlear grooves of the femur appear shallow. There is increased soft tissue effusion within the joint. On both projections, there is a radiolucent defect in the lateral condyle of the femur involving subchondral bone. Small, rounded mineral opacities are visible in the caudal aspect of the joint. There are linear, horizontal lines visible in the medulla of the femur.

Right stifle: There is moderately increased soft tissue opacity within the joint. The lateral femoral condyleis also flattened with a small radiolucent defect, less severe than the left. There are linear, horizontal lines visible in the medulla of the femur.