Author(s)

G. Ulrich Exner¹, Pascal A. Schai²

¹Orthopaedie Zentrum Zuerich, Zuerich, Switzerland.
²Luzerner Kantonsspital Wolhusen, Wolhusen, Switzerland.

Background: Simple Unicameral and Aneurysmal Bone Cysts are benign lesions that may heal spontaneously especially after fracture which may be the first symptom. However, often size increases causing pain, and complications of fractures can severely compromise the patient. Aim: The results in a series of cases treated minimally invasive using a new device for the application of allogenic bone material appear highly promising and shall be presented. Patients and Methods: Eight consecutive patients with symptomatic Unicameral Bone Cysts (UBC) were treated by percutaneous instillation of Grafton? DBF Putty (demineralised allogenic bone containing fibers) mixed with autologous bone marrow using the Kyphon? Cement Delivery System (Medtronic), which allows the injection of this high viscosity paste by controlled high pressure. Five patients with Aneurysmal Bone Cysts (ABC) were treated accordingly after inactivation by Aethoxysclerol 3% and lacking bone formation. Using this approach a high rate of bone regeneration was observed in these patients at 8 months to 5 years follow-up (f/u). Conclusion: The presented technique of a minimally invasive biologic treatment led to highly satisfying results using the Grafton? DBF Putty with its higher potential for bone regeneration than demineralized bone matrix not containing fibres (DBM).

Simple Unicameral Bone Cyst, Aneurysmal Bone Cyst, DBF Putty, Kyphon Cement Delivering System, Bone Marrow, Percutaneous Treatment

Exner, G. and Schai, P. (2020) Treatment of Unicameral and Aneurysmal Bone Cysts by Minimally Invasive Percutaneous Injection of Grafton DBF Putty Using the Kyphon Cement Delivery System. Open Journal of Orthopedics, 10, 143-151. doi: 10.4236/ojo.2020.107016.