Moore and Murchison introduced the method of treating aneurysm by passing wire into the aneurysmal sac.

Modern surgical treatment of cancer is based upon principles laid down by Moore. For cancer of the breast he showed that recurrence was not due to the development of an entirely new tumor because of constitutional susceptibility, as was then generally theorized, but to incomplete removal of the original tumor. He insisted that the entire breast be carefully removed in every case of breast cancer.