Figure 1. (a) Histology of an advanced osteochondritis dissecans (OCD) lesion (knee joint, toluidine blue) showing a partially loosened “joint mouse” with a broad cleft (arrow) between the partial loose body (top) and the normal subchondral bone (bottom). In the lesion, subchondral bone...
De Smet AA, Fisher DR, Graf BK, Lange RH. Osteochondritis dissecans of the knee: value of MR imaging in determining lesion stability and the presence of articular cartilage defects. AJR Am J Roentgenol. 1990;155(3):549–53. Kijowski R, Blankenbaker DG, Shinki K, Fine JP, Graf BK, ...