Meniscus extrusion is an important indicator for evaluating meniscal function and diagnosing meniscal injury. It is an important factor affecting the poor prognosis of meniscus repair, and an early signal of knee osteoarthritis, which accelerates the development of osteoarthritis. In recent years, the new technology of meniscus centralization has been extensively studied in biomechanical studies, animal models, clinical application and efficacy follow-up in the treatment of meniscus extrusion. Therefore, this article will review the related research progress on the etiology, pathogenesis, influence and centralized treatment.