Arthroscopic Medial Meniscus Root Repair With Centralization Using Reversed Suture Anchors for Extruded Medial Meniscus Tears.

The root of the meniscus, as a core structure maintaining the biomechanical stability of the knee joint, plays a decisive role in delaying the occurrence of osteoarthritis by restricting abnormal displacement of the meniscus and ensuring the integrity of circumferential tension. Although various repair techniques for posterior root tears of the medial meniscus have achieved the goal of anatomical reconstruction, postoperative meniscus extrusion is still common. This pathological displacement is significantly associated with joint space narrowing and osteophyte formation. This technique describes a combined arthroscopic surgical approach, which restores and maintains the function of the meniscus through a centralization technique combined with anchor repair, thereby effectively reducing meniscus extrusion.