[Management of the meniscal lesion].

About 1,5 million arthroscopies are each year performed in the world, 50 % for meniscal affections. The menisci participate in the femoro-tibial load transmission and in the joint shock absorption; they contribute to the knee stability and play a role in the joint lubrication. The menisci are therefore important structures, and, in the case of a lesion, surgical abstention or repair should be favoured. When a meniscectomy has to be performed, it should be economical, preserving the meniscal wall. Meniscectomy is contra-indicated in the child and in the case of knee osteoarthrosis. Meniscal healing is compromised if the knee is unstable. If after total meniscectomy a patient presents symptomatic early osteoarthrosis, without marked loss of alignment, meniscal allografting is a therapeutic option, especially at the lateral compartment.