Medial meniscus posterior root tears often occur in patients with lower limb varus malalignment, which leads to mechanical overloading of the medial compartment and premature cartilage wear. Such injuries are often treated by the pullout technique or the suture anchor technique. In this context, the technique of repairing the posterior root of the medial meniscus using all-suture anchors combined with an opening wedge high tibial osteotomy has been proposed. In this technique, we describe a simple maneuver to repair medial meniscus posterior root tears. This technique repairs the posterior root of the medial meniscus by percutaneous puncture through a medial-internal approach with all-suture anchors in combination with opening wedge high tibial osteotomy. This technique has the advantages of simplicity, avoidance of the "bungee effect," and reduction of wear and is worthy of clinical dissemination.