II. Pathophysiology

  1. Subchondral bone undergoes avascular necrosis
    1. Articular cartilage separates from adjacent bone (and its blood supply)
    2. Cartilage may extrude into joint to form loose body
  2. Osteochondritis Dissecans most commonly occurs in the knee
    1. May also be seen in the elbow, ankle, and hip

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Ontology: Osteochondritis Dissecans (C0029421)

Definition (CHV) separation of a portion of joint cartilage and of underlying bone due to loss of blood supply
Definition (CHV) separation of a portion of joint cartilage and of underlying bone due to loss of blood supply
Definition (MSH) A type of osteochondritis in which articular cartilage and associated bone becomes partially or totally detached to form joint loose bodies. Affects mainly the knee, ankle, and elbow joints.
Concepts Disease or Syndrome (T047)
MSH D010008
ICD9 732.7
ICD10 M93.2
SnomedCT 82562007, 156821002
English Dissecans, Osteochondritis, Osteochondritis Dissecans, OCD - Osteochondritis dissecns, OCD, Osteochondrosis dessicans, Osteochondrosis dissecans, osteochondritis dissecans, osteochondritis dissecans (diagnosis), Osteochondrit dissecans, Osteochondritis Dissecans [Disease/Finding], Osteochondritis;dissecans, idiopathic avascular necrosis, Osteochondritis dissecans, Idiopathic avascular necrosis, OCD - Osteochondritis dissecans, OD - Osteochondritis dissecans, Osteochondritis dissecans (disorder), dissecans; osteochondritis, dissecans; osteochondrosis, osteochondritis; dissecans, osteochondrosis; dissecans, OCC
Dutch osteochondritis dissecans, dissecans; osteochondritis, dissecans; osteochondrose, osteochondritis; dissecans, osteochondrose; dissecans, Osteochondritis dissecans, Osteochondrosis dissecans
Portuguese Osteocondrite dissecante, Osteocondrite Dissecante
Spanish Osteocondritis disecante, osteocondrosis dessicans, necrosis avascular idiopática, osteocondritis disecante (trastorno), osteocondritis disecante, Osteocondritis Disecante
Swedish Osteochondritis dissecans
Czech osteochondritis dissecans, Disekující osteochondritida
Finnish Osteochondritis dissecans
German Osteochondrosis dissecans, Osteochondritis dissecans
Korean 이단성 골연골염
Japanese リダンセイコツナンコツエン, 離断性骨軟骨炎
Polish Zapalenie kości i chrząstki rozwarstwiające
Hungarian Osteochondritis dissecans
Norwegian Utskilt osteokondritt, Osteochondritis dissecans, Fritt beinlegeme, Fritt benlegeme
French Ostéochondrite disséquante, Maladie de König, Ostéonecrose aseptique disséquante
Italian Osteocondrite dissecante