Medical and Economical Evaluation of Computer-assisted Reconstruction of the Anterior Cruciate Ligament (ACL)

This study compares the percentage of patients in 2 groups (full success) at 1 year of follow up. The results were evaluated on clinical outcome based on the IKDC (International Knee Documented Committee, subjective evaluation) form between one group using conventional instrumentation and another group using navigation. Secondary Aims: * To compare in 2 groups: * Gain of IKDC score at one year (based on pre-operative IKDC score) * Evolution of IKDC subjective (pre-operative, at 12 months) * To compare performances at one year (% class A or B) in terms of initial instability measured with laximetry score * Study of the learning curve * Evaluate: lasting quality, complication rate, extra-operative time * Evaluate frequency of thrombovenous complications * Evaluate delay to return to sport