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Tibial tubercle osteotomy (TTO) facilitates exposure in knee arthroplasty revision. However, it comes with complications, especially if it invades the intramedullary canal. Most revisions are characterized by compromised femur and/or tibia bone stock, and the use of metaphyseal cones or sleeves for implant fixation has become increasingly frequent. Several methods of fixation of the tibial tubercle have been proposed, such as screw fixation, cerclage wiring, and suture repair. Despite screws providing the strongest fixation for TTO, their placement around a tibial intramedullary stem or a metaphyseal tibial cone may be difficult. We described the use of a custom-made metaphyseal tibial cone with holes in its anterior surface that allow the surgeon to achieve accurate TTO fixation by screws.

Tibial Tubercle Screw Fixation on Custom Metaphyseal Cone: Surgical Tip in Severe Metaphyseal Tibia Bone Loss