Pediatric emergency medicine trisk 0806 0806
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Injuries Associated With Ankle Sprains
Approximately 7% of ankle sprains are accompanied by osteochondral fractures
of the talus. The medial dome is more commonly fractured than the lateral dome.
Avulsions of the peroneus brevis tendon from the base of the fifth metatarsal have
been observed in up to 14% of patients with ankle ligament ruptures. If this injury
occurs in children younger than 15 years, the avulsed fragment is usually an
apophysis and is considered an S-H type I injury, often called a pseudo-Jones
fracture. In older patients, the fracture is more distal on the fifth metacarpal at the
metaphyseal–diaphyseal junction and is known as a Jones fracture.
