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Revista Portuguesa de Ortopedia e Traumatologia
versão impressa ISSN 1646-2122
Resumo
LOPES, Ana et al. Pseudartrose do tubérculo dos peroneais como causa de rotura parcial do longo peroneal. Rev. Port. Ortop. Traum. [online]. 2015, vol.23, n.1, pp.98-104. ISSN 1646-2122.
Peroneal tubercle has a recognized role as cause of tear or tenosynovitis of peroneal tendons. The occurrence of an isolated tubercle fracture is poorly documented in the literature. We describe a case of peroneal tubercle nonunion, complicated by peroneus longus partial tear, of particular interest since there are no related cases of tubercle nonunion. This case reports a 40 year-old male, with persist and limiting pain on the right foot, posttraumatic, with 20 years, objectively with edema and pain on palpation of the lateral surface of the hindfoot, infra-malleolar path of the peroneal tendons, where a hard tumefaction was felt. The imagiological study revealed a marked thickening along the route of the peroneal tendons and a bone fragment adjacent to the external aspect of the calcaneus, between the tendon path. We proceeded to surgery, verifying intraoperatively a peroneal tubercle nonunion and partial tear of the peroneus longus tendon. Removal of the tubercle and tenodesis of peroneus longus to peroneus brevis was performed. At follow-up, the patient was asymptomatic, with complete recovery of range of motion. The occurrence of isolated fracture of the peroneal tubercle following trauma is a rare event reported in the literature, with greater association with ankle sprains. In cases of tenosynovitis or tendon tear, caused by hypertrophy of the tubercle, the treatment involves surgical repair of the tendon, according to the lesion, surgical resection of the tubercle and early mobilization. With regard to the occurrence of tubercle nonunion, there were not found any reported cases so far.
Palavras-chave : Tubercle; peroneal; nounion; tear; tendon.