A retrospective study was conducted on 64 patients who were operated on for combined knee medial compartmental and patellofemoral osteoarthritis, by lateral closing wedge high tibial osteotomy with anterior translation of the distal tibial fragment. They were divided into two groups; Group I comprising 32 patients (34 knees, mean age of 51.4 ± 7 years) whose degree of anterior translation was <1 cm and Group II comprising 32 patients (33 knees, mean age of 52.2 ± 8.3 years) whose degree of anterior translation was >1.5 cm. The final assessment was performed via: visual analog scale, postoperative Knee Society clinical rating system function score, active range of motion, time to union, degree of correction of mechanical axis, posterior tibial slope, and Insall–Salvati ratio.