Graft failure after anterior cruciate ligament reconstruction is multifactorial, with increased tibia slope identified as one of the risk factors. Several slope-correcting osteotomies have been proposed to address this in revision surgery, with most of the procedures using a supratuberosity or transtuberosity approach. Although satisfactory results have been presented, severe complications involving the extensor mechanism can occur. In this Technical Note, an infratuberosity anterior closing-wedge high tibial osteotomy is demonstrated for slope correction in anterior cruciate ligament-deficient knees in the revision setting.