Osteochondritis Dissecans Flashcards

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1
Q

Where is the most common location of OCD lesion?

A

posterolateral aspect of medial femoral condyle (70% of lesions in knee)
Also capitellum and talus

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2
Q

What is the best predictor of successful non-operative management of OCD lesions?

A

Open distal femoral physis;

lesions of the LFC and patella have worse prognosis

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3
Q

What physical exam test and radiograph should be done in the evaluation of a knee OCD lesion?

A

Notch view: bent AP knee xray at 50 degrees

Wilson test: pain with tibial internal rotation when extended the knee btw 90 to 30 degrees

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4
Q

What is the treatment of a stable OCD lesion in a child with open physis?

A

Restricted weight bearing (NWB for 6-8 weeks) and bracing

50-75% heal without fragmentation

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5
Q

What size OCD lesions warrant fixation or resurfacing?

A

> 2cm; lesions that are less than 3cm can be treated arthroscopically, >3cm warrants an arthrotomy

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