Longitudinal long-term results of surgical treatment in patients with osteochondritis dissecans of the femoral condyles.

In a longitudinal study, we performed a second follow-up examination on patients suffering from osteochondritis dissecans at the femoral condyles 10 years after a first follow-up, which had been performed 10 years after surgical treatment. Results (clinical score; radiological signs of OA) were analysed depending on the stage of the epiphyseal plate at the time of surgery, the used surgical procedure was divided into retrograde and anterograde procedures, and removal of loose bodies depending on the stage of the lesion. The analysis clearly exhibited that JOCD patients demonstrated better results than AOCD patients. The clinical score obtained after 10 years improved significantly with time, particularly for JOCD patients. Overall, when a retrograde procedure had been used in cases with an intact cartilage layer clinical results were better than those obtained in patients in whom an anterograde procedure with restoration of the joint surface or simple removal of the loose fragments had been performed. After a mean follow-up of 20 years the mean OA-stage was 0.27 in JOCD patients, whereas in AOCD patients a mean OA-stage of 1.55 was detected. Worst OA-changes were detected in patients in whom acrylic glue had been used for refixation of the loose bodies.