Osteochondritis dissecans

Osteochondritis dissecans(박리성 골연골염, OCD)는 unstable subchondral fragment, disruption of adjacent articular cartilage와 possible separation of the fragment을 특징으로 하는 질환이다.

정의

• OCD: a term for a distinct clinical-pathologic entity: a pathologic condition that affects subchondral bone formation and may result in an unstable subchondral fragment, disruption of adjacent articular cartilage, and possible separation of the fragment.
• Osteochondral lesion: general term으로 다양한 급성 또는 만성 의 연골 및 subchondral bone의 이상을 일컫는 용어. 골괴사와 이에 따른 재골화 및 회복을 특징으로 하는 osteochondrosis
  • Although it is adopted for osteochondral abnormalities of the talus, the term lacks specificity and should be only part of a description of a more specific diagnostic entity.
• Osteochondral defect: a localized defect of the articular cartilage and subchondral bone.
  • It is a morphologic finding that may be seen in various conditions and that produces a scalloped defect along the articular surface of the bone

임상 양상

• 호발부위: knee(femur MFC>LFC), ankle(talus) and elbow(capitellum)

감별 질환

• spontaneous osteonecrosis(자발성 골괴사)
• Panner's disease

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