Expansile aneurysmal bone cyst in the tubular bones of the hand treated with en bloc excision and autograft reconstruction: a report of 12 cases. 
Primary aneurysmal bone cysts (ABCs) in the small tubular bones of the hands are rare and optimal treatment is not yet established.  Between August 1997 and June 2009, 12 patients with biopsy-proven expansile primary ABCs of the small tubular bones of the hand were treated with en bloc tumor excision and strut autograft reconstruction.  The adjacent joint was preserved if feasible, otherwise it was fused.  Patients were followed for at least 2 years (mean = 7 years).  All grafts were incorporated except for partial resorption in one.  There was only one tumor recurrence about 1 year after the operation.  Other complications included premature physeal arrest in one case and limitation of adjacent joint motion in three.  A relatively low rate of recurrence and other complications indicates that this technique would serve as a good strategy for patients with expansile ABCs in the hand in terms of safety, simplicity and reduced number of re-operations.