“…Since the technique was first described, there have been only sporadic reports of studies involving an IVHTO, which has also been termed a combined HTO or a hemi-wedge osteotomy. [5][6][7][8][9] Proponents have argued that an IVHTO can correct a severe varus deformity more easily than a CWHTO, and that an IVHTO will not change the posterior tibial slope, the patellar height, or the length of the lower limb because the hinge point is located at the centre of rotation of angulation of the lower-limb deformity. 7,9 In their retrospective study titled "Inverted V-Shaped High Tibial Osteotomy Decreases the Posterior Tibial Slope More but Shortens the Tibia Less Than Closed-Wedge High Tibial Osteotomy," Hayashi, Tsukisaka,…”