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Avascular Necrosis Case Studies

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Avascular necrosis after fracture of the talus is well recognized, but fractures of talus are very rare in juveniles. There are no reports of avascular necrosis of the talus without fracture in a child. We here report a case of avascular necrosis of the talus without fracture simulating juvenile idiopathic arthritis. The diagnosis was decided by open biopsy. Non-operative treatment was performed. The patient was asymptomatic with full range of motion for two years postoperatively. We hypothesize that the reason for avascular necrosis of the talus without fracture was that hyperflexion of the ankle joint caused soft tissue damage around the talus, but fracture and dislocation did not occur. Damaged soft tissue caused arterial occlusion

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