Treatment of an aneurysmal bone cyst of the lumbar spine in children and teenagers, about five cases

The aneurysmal bone cyst is a rare tumor. Its treatment is complex when localized to the lumbar spine, with neurological, mechanical, and tumoral complications. The aim of this study is to describe these tumors, their treatment, and their long-term evolution, as well as to define an appropriate therapeutic strategy. Four of the five cysts had anterior and posterior extension. Three patients had neurological symptoms at diagnosis and two of them presented with pathological fracture. Surgical treatment was performed by intralesional resection. Long-term progress was always favorable, without recurrence or functional limitation. Two patients had a stable, mild spine deformity.