With increasing life expectancy, the demand for preservation of native articular cartilage is increasing to delay joint arthroplasties. In the knee, there are many different strategies to preserve the articular cartilage including but not limited to corrective osteotomies, chondral injury restoration, intraarticular injection of cells or growth factors(PRP). However, One of the most important strategies in knee preservation is meniscal preservation. It was highlighted again in the 4th international meeting The Meniscus held in Bologna late in January 2016. As the loss of the meniscus can be regarded as a pre-arthritic condition, a knee surgeon must save the meniscuses much as he or she can.