Difference of preoperative varus–valgus stress radiograph is effective for the correction accuracy in the preoperative planning during open-wedge high tibial osteotomy

This study aimed to evaluate (1) the efficacy of varus–valgus stress radiographs to adjust the preoperative soft-tissue imbalance and (2) ascertain whether varus–valgus stress radiographs are effective for the correction accuracy in the preoperative planning of the opening wedge high tibial osteotomy (OWHTO). From February 2017 to December 2018, a total of 121 consecutive knees that underwent bi-planar OWHTO were enrolled in this retrospective...