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Current
Chapter:
Juvenile Osteochondritis Dissecans of the Knee (Updated November 2005)
The purposes of this chapter are to describe the etiology, classification, clinical manifestation, diagnosis and treatment of juvenile osteochondrtis dissecans of the knee.
Repetitive microtrauma that interrupts the subchondral vascularization in the growing child is the most probable etiology. Lesions are classified based on their stability (stable or unstable) and the integrity of articular cartilage (open or closed). Patients can be asymptomatic or present with progressive knee pain and a recurrent mild effusion. Diagnosis can be made usually by radiography particularly, the tunnel view. MRI, bone scans, arthroscopy are used to assess and classify the lesions. An asymptomatic patient needs activities restriction. A symptomatic patient needs non-operative treatment. Failure of non operative treatment requires surgical intervention.
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