Cross-beam Non-vascular Fibular Graft Reconstruction in the Management of Long Bone Giant Aneurysmal Bone Cyst - A Case Series.

INTRODUCTION: Aneurysmal bone cyst (ABC) is a benign expansile osteolytic lesion, characterized by a blood-filled cavity in the bone. Giant ABC (GABC) is an uncommon condition due to the delayed presentation of an ABC that is difficult to handle when it occurs in long weight-bearing bones due to its aggressive nature. The common treatment relies on total resection of tumor with reconstruction of the resultant defect.

CASE REPORT: We present the results of 5 cases of GABCs of long bones managed with non-vascularized fibular graft in a cross-beam fashion along with internal fixation. All patients achieved complete consolidation of the lesion by 12 months along with full incorporation of the graft with good-excellent musculoskeletal tumor society scores. None of the patients had recurrence/pathological fracture till 2 years of follow-up.

CONCLUSION: We suggest the method of using a non-vascularized fibula graft in a cross-beam fashion to reconstruct the void from the resection of long-bone GABC as a safe, reliable technique with excellent functional and radiological results.