noun
osteochondritis dissecans
Medical term for a joint condition in which a fragment of cartilage and underlying bone separates from the joint surface.
離断性骨軟骨炎は膝関節に多く見られる。
Osteochondritis dissecans is often seen in the knee joint.
Compound of 離断 (ridan, 'separation'), 性 (-sei, '-ic'), 骨 (kotsu, 'bone'), 軟骨 (nankotsu, 'cartilage'), and 炎 (-en, 'inflammation'). The term is a direct medical translation of 'osteochondritis dissecans'.