## Overview Osteochondritis dissecans of the trochlear ridges refers to developmental lesions on the ridges of the femoral trochlea in the stifle. The lateral ridge is most commonly affected. Young horses show effusion and variable lameness. Arthroscopic debridement is the usual treatment. ## Causes Failure of normal cartilage-to-bone conversion during growth. ## Diagnosis Radiographs, sometimes followed by arthroscopy. ## Treatment Arthroscopic removal of loose or defective cartilage. ## Recovery and Prognosis Good for most lesions. ## Prevention Management of growth rate and nutrition.
stifle effusion; lameness in a young horse; radiographic defects on the trochlear ridges
## Overview Osteochondritis dissecans of the trochlear ridges refers to developmental lesions on the ridges of the femoral trochlea in the stifle. The lateral ridge is most commonly affected. Young horses show effusion and variable lameness. Arthroscopic debridement is the usual treatment. ## Causes Failure of normal cartilage-to-bone conversion during growth. ## Diagnosis Radiographs, sometimes followed by arthroscopy. ## Treatment Arthroscopic removal of loose or defective cartilage. ## Recovery and Prognosis Good for most lesions. ## Prevention Management of growth rate and nutrition.
stifle effusion; lameness in a young horse; radiographic defects on the trochlear ridges