Arthroscopic Lateral Meniscus Posterior Root Repair Using All-Suture Anchor and Modified Transtibial Pull-Out Technique.

Lateral meniscus posterior root tears lead to disruption of hoop tension, elevation of contact pressure, increased knee instability, and accelerated cartilage degeneration of articular cartilage. Anatomical repair is required to re-establish normal knee biomechanics and to slow the progression of osteoarthritis. A modified transtibial pull-out technique using an all-suture anchor is described. The tail suture is applied for root fixation, creating a suture ball on the meniscal surface, while a 2 mm tibial tunnel is created at the anatomic footprint to achieve refixation. This technique provides stable, minimally invasive, and anatomical repair, minimizing bone loss, avoiding tunnel interference with anterior cruciate ligament grafts, and promoting biological healing.