United Orthopedic

United Orthopedic U2 MB Knee Femoral Sizing and Chamfer Resection D. Femoral Sizing and Chamfer Resection D. Instruments AiO Block Femoral Stylus Sizing the Femur Rotate the handle of the Femoral Stylus to the unlock position. Then insert the stylus into the slot on the top of the AiO Block . Rotate the stylus handle back to the locked position. Position the stylus tip so it is touching the lowest point on the anterior femoral cortex. Check the size panel on the front of the AiO Block. If the block is positioned to an exact size and is in proper overall position, proceed to performing femoral resections. If the AiO Block is not set to an exact size or is not in proper overall position, adjustments can be made using either an anterior referencing or posterior referencing. Rotate to Lock “0” Lowest Point of Anterior Cortex AiO Block Threaded Pin 30 mm/50 mm Screwdriver Instruments Determine the Bone Resection Level Anterior Referencing: Secure the AiO Block by inserting a Threaded Pin in one or both of the Anterior Referencing Fixation Holes. Use the Screwdriver to elevate the Posterior Resection Slot to an appropriate position by adjusting the Bottom Knob to match a chosen size. Note the figures on the Bottom Knob indicate the adjustment of the posterior condylar resection level relative to the standard 9 mm resection. Once the appropriate size is determined, rotate the Upper knob to the lock position with the Screwdriver to secure the chosen size. Size Panel Fix with Threaded Pin 1 mm more posterior cutting 17 18