It carries out a last fifteen days ECA surgical reconstruction of the anterior cruciate ligament. Twenty individuals in a group to be subjected to a technique of physiotherapy, dry needling were included. (Group A). Another group of twenty patients treated with conservative treatment performed a stability exercises and proprioception (Group B). Forty-six patients will be examined s. None had been previously operated by joint instability and all subjects were previously subjected to a diagnostic study by nuclear magnetic resonance before surgery and the diagnosis was confirmed by additional diagnostic testing. All patients will be evaluated by a physical therapist and Myofascial Trigger Point (PGM) of the vastus muscle will be evaluated.