Among patients who underwent open-wedge high tibial osteotomy, there was a significant increase in the risk for early conversion to total knee arthroplasty for female patients and patients older than 47 years, according to a recently published study.

Researchers identified 111 open-wedge high tibial osteotomies (HTO) performed at a center during an 18-year period. The mean follow-up was 12 years. Conversion to TKA was considered for a failed open wedge HTO.