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Osteochondritis Dissecans of Talus
Aka: Osteochondritis Dissecans of Talus, Talar OCD
- See Also
- Talar Dome Fracture
- Definition
- Traumatic defect in articular surface of talus
- Small area necrotic bone formation (Usually medial)
- Epidemiology
- Adolescence or young adulthood
- Symptoms
- Persistent symptoms of "Ankle Sprain" that won't heal
- Gradual onset with distant history of ankle injury
- Painful limp
- Chronic swelling in ankle with activity
- Signs
- Examine ankle with foot in plantar flexion
- Point tenderness over articular surface of talus
- Restricted Ankle Range of Motion
- Radiology
- Ankle XRay
- Necrotic fragment at joint
- Bone scan
- Ankle MRI
- Management
- Nondisplaced fragment
- No weight bearing until lesion heals
- Cast immobilization often needed
- Persistent symptoms or fragment detachment
- Surgical removal of necrotic fragment