Arthroscopic surgery generally lasts for about a year, but this cannot be generalized, as the exact duration is related to the patient’s own pathology and the use of the joint. Arthroscopic surgery is a minimally invasive procedure that is mainly used for the diagnosis and treatment of joint pathology. If the patient’s own pathology is relatively mild, such as a meniscus injury, he or she can be free of joint-related symptoms for up to one year after treatment. If the patient’s lesion is particularly severe (e.g. synovial sarcoma) or if the joint is overused after recovery, the patient’s time to relief is greatly shortened, and joint-related symptoms may appear in less than a year. Arthroscopic surgery involves inserting a lenticular metal tube with an illumination device through a very small incision into the patient’s joint cavity. The internal structure of the joint cavity is magnified on a monitor to visualize the lesion and its location within the joint cavity, and a thorough examination and cleaning of the lesion is performed under television surveillance. After arthroscopic surgery, it is important to follow up the treatment as prescribed by the doctor in order to maximize the effect of the procedure.