The diagnosis of chondromalacia by double contrast arthrography of the knee.

The patellar and articular cartilages of the femoral and tibial condyles can be demonstrated well by double contrast arthrography, and abnormalities of the cartilage can be seen. A comparison of surgical findings with the preoperative arthrogram was made for 100 patients, and the diagnosis of chondromalacia of the patella and condyles had an accuracy of about 90 per cent.