Two year old Dutch warmblood The left stifle joint was swollen and radiographs were made of both stifle joints Left stifle Radiographic diagnosis Lateral and caudocranial views are shown - the marked irregularity of the contour of the lateral trochlear ridge of the femur is due to fragmentation of the articular cartilage and resorption of the underlying bone (arrows) - mineralized debris is present distally within the joint space - this is a classic presentation of an osteochondritis dissecans in the stifle joint as it affects the trochlear ridge. Post-operative study shows removal of the bony fragments Another case This is another way OCD presents in the stifle joint of the horse with a single cavitary lesion (arrows) in the medial condyle.
