Lateral closing wedge high-tibial osteotomy is a long-lasting option for patients under the age of 55 with medial compartment osteoarthritis.

Purpose: Assess the survival of the closing wedge high tibial osteotomy (CWHTO) with failure defined as progression to total knee arthroplasty (TKA) and perioperative complications.

Methods: Patients undergoing CWHTO in a single centre were included in this study. The patient's demographics, operative data and patient-reported outcome measures were collected from the medical records.