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Case Reports in Orthopedics
Volume 2016 (2016), Article ID 7980593, 6 pages
Case Report

Lower Limb Reconstruction with Tibia Allograft after Resection of Giant Aneurysmal Bone Cyst

Orthopaedics and Trauma Department, Centro Hospitalar Lisboa Norte, EPE-Hospital de Santa Maria, 1649-036 Lisboa, Portugal

Received 11 April 2016; Accepted 1 June 2016

Academic Editor: Byron Chalidis

Copyright © 2016 Joaquim Soares do Brito et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Aneurysmal bone cysts (ABCs) are benign, expansible, nonneoplastic lesions of the bone, characterized by channels of blood and spaces separated by fibrous septa, which occur in young patients and, occasionally, with aggressive behavior. Giant ABC is an uncommon pathological lesion and can be challenging because of the destructive effect of the cyst on the bones and the pressure on the nearby structures, especially on weight-bearing bones. In this scenario, en bloc resection is the mainstay treatment and often demands complex reconstructions. This paper reports a difficult case of an unusual giant aneurysmal bone cyst, which required extensive resection and a knee fusion like reconstruction with tibia allograft.