The Implementation of Patient-Specific Instrumentation in High Tibial Osteotomies

Patient-specific instrumentation (PSI) may help improve outcomes following high tibial osteotomy (HTO). Three-dimensional preoperative planning allows for multiplanar osteotomy templating that can precisely restore the mechanical axis while limiting unintended sagittal plane abnormalities, facilitating execution of complex biplanar corrections. Patient-specific cutting guides and anatomically contoured implants reduce risk for intraoperative complications and streamlines operative efficiency. Though lacking long-term data to establish clinical superiority of PSI over traditional HTO techniques, early reports demonstrate PSI is highly accurate, safe, and effective. Understanding the advantages and limitations of PSI is crucial in making informed decisions when implementing this new technology in osteotomy surgery.