Abstract
High tibial osteotomy (HTO) is an excellent treatment for osteoarthritis of the knee. However, due to a prolonged life span recurrence ta the varus deformation and destruction of lateral joint sometimes require TKA in patients after HTO. We compared the status of 9 knees in 7 patients who underwent HTO and the problems encountered during surgery before and after the subsequent TKA.
Comparison of the status before and after the surgery: FTA was improved from the mean 177.2° to 173°, ROM from 5°-112°to 3°-106°, and JOA score from an average of 66 points to 80 points.
Patellar inversion sometimes caused trouble at the time of TKA. Attention should be paid to the adjustment of ligament balance and decrease in bone stock due to osteotomy (at the time of HTO and TKA).
The lateral shift of the tibia at the time of HTO requires careful positioning of tibial component.
