Corrective Intra-Articular Osteotomy Using a 3D-Printed Model and Induced Membrane Technique for AO/OTA C3 Distal Femur Fracture with Articular Malunion and Metaphyseal Nonunion

Abstract

Comminuted distal femur fracture is a challenging injury, and care must be taken to reduce the articular fragment and acquire the sufficient stability for the metaphyseal comminution. We report the case of a AO/OTA C3-type distal femur fracture with articular malunion and metaphyseal nonunion. Articular malunion was treated with corrective osteotomy using a 3D-printed model for planning, and metaphyseal nonunion was treated with an induced membrane technique. Conclusion. Two major complications in the comminuted periarticular fracture can be addressed by an osteotomy and induced membrane technique. A 3D-printed model is a useful tool to evaluate the morphology of the malunited articular surface.

Distal femoral osteotomy for multidirectional malunion using 3D printing technology: a case-report

“…Further, personalized osteotomy guides have been recently proposed to provide better functional outcomes. Indeed, Saka et al 16 performed a corrective intraarticular osteotomy for an articular malunited distal femur fracture using a 3D-printed model and concluded that this method is helpful for the planning and evaluating the osteotomy. Sun et al 17 reported using 3D-printed navigation templates during minimally invasive percutaneous plate osteosynthesis of complex distal femoral fractures.…”