METHOD OF SECURING VERTEBRAE

摘要

A method of fixing first and second vertebrae of a patient includes inserting a first cannula (1020) into the body of the patient. A fusion device (2010, 2110) is moved through the cannula and inserted between the first and second vertebrae. First and second fasteners (4064) are moved through the cannula and secured to the first vertebra. A first fixation element (4650) is moved through the cannula and is fixed to the first and second fasteners. The fusion device (2010) has first and second ends (2070, 2072), upper and lower surfaces (2060, 2062), and first and second side surfaces (2070, 2072). The side surfaces extend along arcs from the first end of the fusion device to the second end. The upper and lower surfaces have teeth (2064, 2066) that extend between the side surfaces along secant lines of circles partially defined by the side surfaces.