An implant for bone connector includes a fixing clamp, an implant body, a
connecting portion and a movable clamp. The fixing clamp has a curved
shape and supports a vertebral arch of a vertebra by grasping the
vertebral arch. The implant body is provided on an upper portion of the
fixing clamp. The connecting portion with which the connecting member is
engaged is provided with the implant body. The movable clamp, which has a
curved shape and grasps the vertebral arch, is provided to the implant
body and is disposed to be opposed to the fixing clamp.