Comparative analysis of change in rotational alignment after double level osteotomy and opening wedge high tibial osteotomy

摘要

Introduction: Opening wedge high tibial osteotomy (OWHTO) is a popular surgical option for correction of varus knee deformity with osteoarthritis, while double level osteotomy (DLO) is indicated for knees with severe deformity to prevent non-physiologic joint line obliquity. In the majority of previous studies examining change in limb alignment after osteotomy, coronal and sagittal alignment parameters were subjected to the analysis while postoperative change in rotational alignment has not been clarified. The purpose of this study was to comparatively analyze the rotational alignment after DLO and OWHTO based on three-dimensional image analysis of pre- and postoperative CT images.