Pediatric Osteochondritis Dissecans of the Knee

  • Etiology: most likely due to repetitive trauma leading to disruption of endochondral ossification at secondary physis
  • Imaging: seen before physeal closure, damage to subchondral bone and articular surface, detachment of osteochondral fragment and joint degeneration
  • Clinical: between 10-15 years, knee > ankle > elbow

Radiology Cases of Osteochondritis Dissecans of the Knee

Radiograph of osteochondritis dissecans of the knee
AP radiograph of the knee shows fragmentation of the lateral aspect of the medial epicondyle of the knee.