Minimally Invasive Anteromedial-Assisted Reduction and Subchondral Rafting Fixation for an Isolated Posterolateral Tibial Plateau Fracture: A Novel Technique

Abstract Isolated posterolateral tibial plateau fractures pose challenges due to complex regional anatomy and limited surgical access. We introduce a novel minimally invasive anteromedial-assisted technique for a depressed posterolateral tibial plateau fracture. A guided K-wire and bone punch are employed to indirectly elevate the articular fragment, while a pre-bent 2.4 mm T-plate is slid subchondrally to support the reduced segment. Intraoperative arthroscopy and postoperative CT confirmed anatomic reduction and stable implant placement. This method avoids extensive soft-tissue dissection, combining internal subchondral support with arthroscopic confirmation to restore joint congruence. The patient regained full, pain-free knee motion by 12 weeks.