title: Aneurysmal bone cyst in children involving infrequent locations. Report on two cases.
abstract: Aneurysmal bone cyst is a benign but locally destructive lesion of bone. We present two cases of ABC in uncommon locations in two children. The first case concerns a 14 year old boy who had a mass located in the internal side of the talus. An ABC type V of Campanacci's classification is diagnosed. Complete curettage was carried out with a high-speed burr. We implanted an Orthofix external fixation with a mobil bottom bolster and distal pins located in the calcaneum. Case 2 concerns an ABC in the clavicle of a 9 years old boy. A selective arterial embolization (SAE) with polyvinyl alcohol was carried out. Curettage of the lesion and filling with a cortico-spongy graft were implemented. Two years later, both of the patients are asymptomatic. We believe that external fixation with a bolster is an efficient and valid alternative to traditional immobilization with a cast. The use of SAE also prevented profuse bleeding of the lesion during surgical procedure.
authors.affiliation: Dipartimento di Ortopedia, Ospedale Generale Universitario Gregorio Maragñòn, Madrid, Spagna.
authors.forename: A Rios
authors.initials: AR
authors.lastname: Luna
authors.forename: H
authors.initials: H
authors.lastname: Fahandez-Saddi
authors.forename: A Villa
authors.initials: AV
authors.lastname: Garcia
authors.forename: C de Josè
authors.initials: Cde J
authors.lastname: Reina
authors.forename: J Vaquero
authors.initials: JV
authors.lastname: Martin
mesh_terms: D000293:Adolescent; D017824:Bone Cysts, Aneurysmal / Q000145:classification / Q000175:diagnosis / Q000601:surgery*; D016025:Bone Transplantation; D002648:Child; D002968:Clavicle; D003475:Curettage / Q000379:methods; D016267:External Fixators; D006801:Humans; D008297:Male; D013628:Talus; D016896:Treatment Outcome