A bone attachment device comprises an attachment collar having a hinged lid isdisclosed. The bone attachment device may also comprise a bone fastener (suchas a bone screw). A bone attachment device including an attachment collar anda spinal rod locking device is disclosed. A bone attachment device as describedherein may be used together with a spinal stabilization rod and one or more additionalbone attachment devices. Such devices are adapted to clamp and hold a spinal stabilizationrod. Methods for implanting a spinal stabilizer having a bone attachment deviceincluding a hinged Ud are disclosed.
