Fig. 1From: Ability of an intentionally smaller anterior than posterior gap to reduce the sagittal tibial slope in opening wedge high tibial osteotomyMeasurements of anterior and posterior opening gap heights on 3D CT. The opening gap at osteotomy site of the larger posterior gap group, with a significantly larger posterior than anterior gap on postoperative 3D CT, was created as preoperatively planned (a). Patients with larger anterior gaps preoperatively had larger anterior than posterior gaps on 3D CT, in opposition to preoperative planning (b). Nevertheless, no definite increases in posterior tibial slope were found in both sets of patientsBack to article page