Orthopedic surgery A procedure used for osteoarthritis in which a wedge of bone is excised from the tibial plate at the point of greatest contact with the femur; HTOs redistribute weight, and may ↓ cartilaginous wear
Heckmann, "Opening wedge high tibial osteotomy: An operative technique and rehabilitation program to decrease complications and promote early union and function," American Journal of Sports Medicine, vol.
It can be concluded from this series that, in addition to appropriate patient selection, exacting surgical technique has a direct Impact on the outcome following a high tibial osteotomy. However, there is no consensus as to what constitutes appropriate correction of alignment.
The indications for high tibial osteotomy include unicompartmental arthritis confined to the medial side, age of less than 60 years, 10[degrees] to 12[degrees] varus deformity, arc of motion of at least 90[degrees], and flexion contracture of less than 15[degrees].
In the cases of more than 7 years after high tibial osteotomy, a positive straight regression line was drawn by calculation between Medial/Lateral ratio and postoperative limb alignment expressed by standing femorotibial angle, with coefficient of correlation ([gamma]) of 0.295 (p < 0.01).