抄録
Authors have developed a new device to navigate the trajectory of screw insertion in the axial plane for posterior cervical fixation. The device is composed of two, long and short, stainless wires which were welded together at an angle of 25 degrees at its top. The device was used as the long wire was adjusted to the vertical line to the floor and the short wire for adjustment of the axial direction of the screw. Between 2002 and 2005, screws were inserted in the lateral mass of the atlas and the middle to lower cervical spine and C2 pedicle in 14 cases using this device in addition to a fluoroscopic guide. All 82 screws were inserted successfully without any complication. Our technique with the new device was useful for posterior cervical fixation.
