Acromioclavicular separation is one of the frequently injuries of the shoulder. Majority of the patients are males, which is explained through their higher involve in challenging sports. Through this joint, clavicle connects thorax with superior limb, for this reason, rupture of the ligaments who keep the bones together, destabilize the whole ensemble. For scientific and practical reasons, acromioclavicular separations are classified in VI groups. Patients who belong to the first II groups are treated conservative and patients from groups IV, V and VI need surgery. Discussions are about the best option for group III. For nonathletic patients, conservative treatment seems to be enough, but for athletic, or shoulder high demand jobs, operation is the best option. During the time, many surgical technics were developed to restore the normal anatomy of the girdle shoulder. In last decades, arthroscopic treatment using suspensory devices became very common due to good results and low morbidity. We analyzed 22 cases of acromioclavicular separations treated arthroscopically with tight-rope and dog-bone button. Dates were collected after 2 weeks, 6 weeks, 6 months and one year after surgery. We noted pain, mobility of the shoulder, muscles strength and grade of satisfaction of patients. Our conclusions were that arthroscopic surgery is the primary options in treatment of this traumatic pathology with very good results in time, both esthetic and functional.