Fixing instrument for spinal fusion members

摘要: Two posterior spinal fusion members are secured to a plurality of vertebrae which constitute spine. The fixed both sides the spinous processes vertebrae. A fixing instrument is attached each member. includes rod-shaped connecting member and two hooks slidably ends Elongated holes formed in portions where attached. Male screws driven through elongated holes. surface around opening hole head associated male screw slides as bottom recess shallow on end side deep side. When hexagonal wrench inserted face this manipulated drive into hook, recess, causing hook move toward Therefore, force applied shift other.