Patent ID: 8828015

Claim:
A chamfer resection guide assembly for a distal total knee implant comprising: an anchor member for anchoring into a resected distal surface of a femur; a block member including one or more cutting guide slots and a femoral contacting surface for placement against the resected distal surface of the femur, wherein the femoral contacting surface is provided with a recessed region in which the anchor member is slidably engaged therein; and a camming member operably connecting the block member and the anchor member and configured for linearly displacing the anchor member and the block member with respect to each other by a camming action; wherein the block member is provided with a blind hole provided in the recessed region and the anchor member is provided with a blind slot, wherein the camming member is captured between the block member and the anchor member by engaging the blind hole and the blind slot, whereby turning the camming member about its longitudinal axis produces the camming action; wherein the camming member has a first end and a second end and comprises: an adjustment plunger provided at the first end and engaging the blind hole of the block member; a cam body provided at the second end and engaging the blind slot of the anchor member; and a coil spring contained between the adjustment plunger and the cam body and urging the adjustment plunger against the block member and the cam body against the anchor member, wherein the adjustment plunger is configured with a mid-section that is larger in diameter than the first end and the second end, allowing the coil spring to be contained between the adjustment plunger and the cam body so that the mid-section interferes with a retaining lip of the blind hole to retain the adjustment plunger within the blind hole.