Management of distal femur aneurysmal bone cyst in an adult by extended curettage with bone substitute and internal fixation: an illustrative case report


  • D. Yogadeepan Department of Orthopaedics, SRIHER, Chennai, Tamil Nadu, India
  • Srinivasan Rajappa Department of Orthopaedics, SRIHER, Chennai, Tamil Nadu, India
  • Raghavendran . Department of Orthopaedics, SRIHER, Chennai, Tamil Nadu, India



Aneurysmal bone cyst, Bone curettage, Bone substitute


Aneurysmal bone cysts (ABCs) are benign osteolytic vascular neoplasm characterised by several sponge like blood filled or serum filled non endothelialized spaces of various diameter. ABCs can present a diagnostic challenge, as they share several histological and radiographic characteristics with other aggressive lesions like giant cell tumors and malignant telangiectatic osteosarcomas. In this article, we present a case of 34-year gentleman with left distal femur aneurysmal bone cyst treated by extended curettage augmented with bone substitute and internal fixation. In ABC management, curettage is the treatment of choice inspite of high recurrence rate. This is because of early return to functional activities and less morbidity. En bloc excision results in a lower recurrence rate but more extensive reconstructive surgery is needed which is associated with higher morbidity


Lawson C, Dormans JP. Benign pediatric bone tumors. Pediatr Clin North Am. 1996;43:949-66.

Hefti F. Pediatric Orthopedics in Practice. Springer; 2007: 151-155.

Hakim DN, Pelly T, Kulendran M, Caris JA. Benign tumours of the bone: a review. J Bone Oncol. 2015;2:37-41.

Mascard E, Gomez-Brouchet A, Lambot K. Bone cysts: unicameral and aneurysmal bone cyst. Orthop Traumatol Surg Res. 2015;101:119-27.

Ibrahim T, Howard A, Murnaghan M, Hopyan S. Percutaneous curettage and suction for pediatric extremity aneurysmal bone cysts. J Pediatr Orthop. 2012;32:842-7.

Skubitz K, Peltola J, Santos E, Cheng E. Response of aneurysmal bone cyst to denosumab. Spine. 2015;40:1201-4.

Roberto M. Imaging in Treatment Planning for Sinonasal Diseases. Springer; 2005: 114.

Campanacci M, Capanna R, Picci P. Unicameral and aneurysmal bone cysts. Clin Orthop Relat Res. 1986;204:25-36.

van Unnik JAM: Classification and grading of soft-tissue sarcomas. Hematol Oncol Clin North Am. 1995;9:677-700.

Sangle NA, Layfield LJ. Telangiectatic osteosarcoma. Arch Pathol Lab Med. 2012;136:572-6.

Murphey MD, wan Jaovisidha S, Temple HT, Gannon FH, Jelinek JS, Malawer MM. Telangiectatic osteosarcoma: radiologic-pathologic comparison. Radiology. 2003;229:545-3.

Schreuder HW, Veth RP, Pruszczynski M, Lemmens JA, Koops HS, Molenaar WM. Aneurysmal bone cysts treated by curettage, cryotherapy and bone grafting. J Bone Joint Surg Br. 1997;79:20-5.






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