Howie J L
J Can Assoc Radiol. 1985 Sep;36(3):197-9.
Osteochondritis dissecans is a disorder which rarely involves the patella. It must be differentiated from chondromalacia, lateral marginal fracture due to direct injury, medial facet osteochondral fracture secondary to traumatic lateral dislocation and a dorsal defect of the patella. I report a patient in whom computed tomography (CT) helped confirm the diagnosis. Although usually diagnosable from plain films, in difficult patients CT should be considered.
剥脱性骨软骨炎是一种很少累及髌骨的疾病。它必须与软骨软化症、直接损伤导致的外侧边缘骨折、创伤性外侧脱位继发的内侧小关节骨软骨骨折以及髌骨背侧缺损相鉴别。我报告了一例通过计算机断层扫描（CT）有助于确诊的患者。虽然通常通过平片即可诊断，但对于诊断困难的患者应考虑进行CT检查。
