Osteochondritis Dissecans Flashcards
Where is the most common location of OCD lesion?
posterolateral aspect of medial femoral condyle (70% of lesions in knee)
Also capitellum and talus
What is the best predictor of successful non-operative management of OCD lesions?
Open distal femoral physis;
lesions of the LFC and patella have worse prognosis
What physical exam test and radiograph should be done in the evaluation of a knee OCD lesion?
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
What is the treatment of a stable OCD lesion in a child with open physis?
Restricted weight bearing (NWB for 6-8 weeks) and bracing
50-75% heal without fragmentation
What size OCD lesions warrant fixation or resurfacing?
> 2cm; lesions that are less than 3cm can be treated arthroscopically, >3cm warrants an arthrotomy
