Editorial Commentary: High Tibial Osteotomy Lateral Hinge Fracture is More Common in Patients with Posterolateral Tibial Condylar Protrusion
Arthroscopy The Journal of Arthroscopic & Related Surgery(2023)
摘要
The most common adverse event during opening-wedge high tibial osteotomy is lateral hinge fracture. It may be caused by a variety of factors, including an insufficient osteotomy, a large opening gap, an inappropriate hinge position, and early weight bearing with compromised fixation. In addition, particularly in men, posterolateral protrusion of the proximal tibial condyle often results in an insufficient posterior cortical osteotomy owing to surgical overprotection in an effort to avoid popliteal vessel injury. An insufficient posterolateral osteotomy shifts the hinge point posteriorly, resulting in an unstable hinge fracture during opening of the osteotomy wedge, as well as undesirable changes in the mechanical axis. A solution in patients with a large posterolateral proximal tibial condyle could be to shift the osteotomy slightly distally. Surgeons should be mindful of individual proximal tibial morphology in the area of the lateral hinge.
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