[Reconstruction using non-vascularized fibula of an aneurysmal bone cyst of the humerus in a child].

Aneurysmal bone cyst is a pseudotumoral bone dystrophy which accounts for 1.5 to 4% of benign bone tumours. We report the case of a bulky aneurismal cyst of the left superior humeral metaphysis in a seven year old child revealed by a repeated pathologic fracture. Exeresis of the cyst was performed with reconstruction by a non vascularized fibula. After a follow up of one year the patient recovered safely with normal range of motion and anatomically. The cystic exeresis sparing the growth cartilage with fibula graft is indicated in the management of active and aggressive aneurismal cyst of long bones.