Aneurysmal bone cysts of the sacrum: a report of ten cases and review of the literature.

Ten cases of aneurysmal bone cysts are presented. Patients ranged in age from five years to 64 years. Treatment was resection or curettage; four patients had preoperative embolization. Treatment results were excellent. Six patients had no recurrence while recurrences in the other four patients were successfully treated by recurretage, two with adjunctive CyberKnife therapy. All ten patients are currently disease free for at least two years. Only two patients have residual neurologic deficit in the form of bowel or bladder dysfunction.