ANEURYSMAL CYST OF THE PROXIMAL RADIUS - RESECTION AND FREE VASCULARIZED FIBULAR BONE-GRAFT

We present the case of a 22-year-old woman with an aneurysmal cyst of the right proximal radius, treated by resection and a free bone graft (microvascular fibular transfer), without recurrence after 4 years. Ov er a 4 month period, there was a rapidly expanding and lytic lesion fo und in the radius. There were symptoms of elbow and wrist pain and ear ly radially innervated muscle weakness. Radiological examination showe d a localized tumour of the proximal radius, type 2, grade C, accordin g to the classification of Campanacci. Biopsy led to the diagnosis of an aneurysmal bone cyst. Complete tumour resection was followed by a f ree vascularized fibular bone graft, resulting in good functional impr ovement, without local recurrence. Aneurysmal bone cysts are a rare co ndition, and the location in the radius has not previously been descri bed. Vascularized bone grafts are mechanically and biologically superi or in this type of case.