Knee arthroscopy is performed as part of a one-day surgery procedure. After coming to the hospital, the patient meets with an anesthesiologist who selects the appropriate method of anesthesia. Most often it is spinal anesthesia, i.e. an injection into the spine that anesthetizes the lower limbs. After local anesthesia, the doctor inserts the arthroscope through a hole approximately 5 mm in diameter. With its help, it is possible to detect, diagnose and "fix" pathological changes in the knee joint. The patient is conscious all the time during the procedure.