#$%^&*AU2013222044A120131003.pdf#####H:\txb\Interwoven\NRPortbl\DCC\TXB\5435858_1.doc - 2/9/13 ABSTRACT A locking instrument assembly for use in conjunction with an intramedullary device is disclosed. The locking instrument assembly includes an inner collet, an outer body, and a knob. The inner collet has a collar and a fastener member. The knob engages the fastener member to press the outer body against the collar. As the knob mates with the fastener member, the collar applies a clamping force to the intramedullary device.