According to published results, open wedge high tibial osteotomy with a small correction angle may be associated with degeneration of articular cartilage within the patellofemoral joint.
Researchers retrospectively analyzed data on 37 knees that underwent open wedge high tibial osteotomy (HTO) and 38 knees that underwent hybrid closed wedge HTO for medial knee osteoarthritis from August 2017 to November 2019. According to the study, open wedge HTO was indicated for corrections of less than 10 degrees, whereas hybrid closed wedge HTO was indicated for corrections of more than 10 degrees.