this innovation is the development of a test bench for studying the fatigue of ligamentous prosthesis implants of textiles, including previous acl (acl) of the knee joint, in order to estimate the service life.the design of the test bench is an analysis of the stresses applied to the ligament and the determination of their nature and their intensity, which provides a guide to the choice of materials used and the type of mechanical coupling device for testing f atigue for quite a long time.the knee joint can not be regarded as a simple link pivot. in fact, the extension of the knee flexion and rotation corresponds to a displacement of femoral condyles of the tibia plateau. this leads to cyclic loading of acl (lca) tractionflexion, torque and abrasion.the test bench is cyclically synchronized traction and bending, torsional, and abrasion. in order to simulate the mechanical stress applied to the artificial ligaments at the knee, one end of the ligament prosthesis is attached to a mandrel driven by a rotational movement with a twist of the body.the other end is inserted into a tunnel through the femoral condyles of an animal and fixed on it. the femur was fixed in the bit free to rotate with respect to an axis perpendicular to the femur. the rotation of the jaws is a combined effort of tractionflexion in the sample. the elongation of the ligament is the abrasion at the level of the groove of the tunnel.in this test, several tuning parameters can be controlled, namely: the main engine speed and therefore the number of training cycles of loading of the sample per second, the value of the flexural and torsional angles and the distance between the jaws of the mandrel bending and torsion.La présente innovation concerne la mise au point dun banc dessai permettant détudier la fatigue des prothèses ligamentaires textiles, notamment les prothèses des ligaments croisés antérieurs (LCA) de larticulation du genou, afin destimer leurs durées de vie. La conception du banc dessai est
