Foot & Ankle Surgery: Techniques, Reports & Cases
Aneurysmal bone cysts are expansile lytic lesions that most commonly affect the metaphysis of long tubular bones. These lesions are locally aggressive and predominately occur within the first two decades of life. Currently the most widely used surgical treatment involves intralesional curettage of the affected bone. However, there have been several reports of high recurrence rates with this technique. We present a case of a 12 year old female who presented with an aneurysmal bone cyst of the lateral malleolus of the right ankle. The patient underwent multiple surgeries and ultimately had complete surgical resection of the cystic lesion and lateral malleolus, with insertion of an allogenic fibular strut graft. Two years post operatively the graft was noted to be fully incorporated with the remaining host fibula, with full regeneration of the anatomical structure of the lateral malleolus. The patient remains pain free two years post operatively with no restriction in motion of the right ankle joint. Full resection of aneurysmal bone cysts with fibular allograft reconstruction proves to be a satisfactory treatment option for recurrence of locally aggressive lesions.
Mortenson KE, Fallat LM. Allogenic fibular bone graft reconstruction with complete regeneration of the lateral malleolus after En bloc resection of a distal fibular aneurysmal bone cyst: A case report. Foot & Ankle Surgery: Techniques, Reports & Cases. 2021 Sep 1; 1(3):100055. doi: 10.1016/j.fastrc.2021.100055. Epub 2021 Jul 13.