Fig. 3

Lower limb varus alignment due to bony and intra-articular deformities. a. Patient with a preoperative varus alignment of 14° essentially due to a tibial varus (MTPA = 80°), b. The preoperative JLCA measured under varus stress was excessive (JLCA = 17°) suggesting a major postoperative risk of overcorrection c. the patient had a an unicompartmental knee prosthesis performed first and simultaneously to his osteotomy allowing to correct the intra-articular and tibial deformities (postoperative MPTA = 86°), the postoperative lower limb morphotype was neutral (HKA angle = 177°)