Benefits of Gamma Knife surgery are that the painless outpatient procedure lasts less than a day, and it has a 90 percent success rate in killing, shrinking or stopping brain tumor growth, states Wake Forest Baptist Health. Patients do not need general anesthesia or incisions, and there is no bleeding.
There is no risk of infection with Gamma Knife surgery, and patients receive less exposure to radiation than with other types of radiosurgery, notes Wake Forest Baptist Health. Patients can resume their normal activities the day after the procedure, which usually costs about 50 percent less than traditional brain surgery. In Gamma Knife surgery, or stereotactic radiosurgery, surgeons use 3-D positioning tools to administer a targeted dose of radiation. Surgeons use the procedure to treat brain tumors and abnormalities that are untreatable with traditional brain surgery.