A synthetic ligament made of a plurality of polymer filaments comprising two intra-osseous portions (1), within which polymer filaments are oriented only longitudinally and are woven together longitudinally and knotlessly to form a dense weave, and one intra-articular portion (2), located between the two intra-osseous portions (1), which comprises loose filaments and is untwisted around its axis. A method of producing a synthetic ligament in which the step of weaving of the polymer filaments within the intra-osseous portions (1) is carried out by means of longitudinal and knotless weaving to obtain a dense weave, with polymer filaments within the intra-articular portion (2) of a ligament remaining loose. A use of a synthetic ligament as a medical implant for the reconstruction of ligaments and tendons, notably knee ligaments.
