A bone attachment devicecomprises an attachment collar having a hinged lidis disclosed. The bone attachment device may alsocomprise a bone fastener (such as a bone screw).A bone attachment device including an attachmentcollar and a spinal rod locking device is disclosed.A bone attachment device as described herein maybe used together with a spinal stabilization rod andone or more additional bone attachment devices.Such devices are adapted to clamp and hold aspinal stabilization rod. Methods for implanting aspinal stabilizer having a bone attachment deviceincluding a hinged Ud are disclosed.
