Rupture of the peroneus longus tendon with an associated fracture of the os
peroneum is an uncommon injury, which may present as chronic lateral ankle
instability, There have been only seven cases documented in the literature
since 1966, A case of chronic peroneus longus tendon rupture with os peron
eum fracture is presented. The authors review their clinical, radiographic,
and operative treatment of this patient and review the literature of this
unusual injury.