Many knee injuries can be resolved through Arthroscopy. In this surgical technique, surgeons approach the knee joint by inserting a fiber optic telescope or arthroscope through an incision approximately 1 cm in length. The knee joint is expanded with 0.9% solution to facilitate the visualization of the intra-articular anatomical structures, which are magnified by lenses and observed on the screen of a high-resolution monitor. Once the lesions are located, the corrective surgery is performed using small instruments through the pre-established portals. Usually the hospitalization is one day; however, in selected cases, it may become an ambulatory procedure. Arthroscopic surgery causes fewer tissue traumas than traditional surgery and therefore recovery is faster and postoperative morbidity is lower.