United Orthopedic

United Orthopedic U2 MB Knee Inset Patellar Preparation Caliper Patellar Sizing Ring Instruments K. Patella Sizing and Bone Resection Place the knee in full extension and evert the patella with caution. Remove the excessive cartilage and osteophytes adjacent to the border of patella. Use the Caliper to measure the anterior-posterior dimension of the patella. Use the Patellar Sizing Rings to evaluate bone coverage and select the optimal size. Once the optimal size has been selected, set positioning by locating the central hole of the sizing ring with the center of the medial ridge of the patella. While holding the sizing ring in place, mark the outer border of the selected sizing ring. Inset Patellar Sizing Ring Diameter: 22,25,28,32 mm Surgical Tip: It is suggested to leave at least 2 mm from the ring to the border of the patella. Inset Patellar Preparation Instruments K. Inset Patellar Reaming Depth and Pilot Hole Attach the appropriate size of Patellar Clamp Ring to the Patellar Resection Clamp . Patellar Clamp Ring Patellar Drill Depth Sleeve Patellar Reamer Patellar Resection Clamp Align the Patellar Clamp Ring on the patella clamp to the previously marked position and secure to the patella by depressing the handles on the clamp. Choose the Patellar Drill Depth Sleeve that corresponds to the selected patella size and place over the clamp ring. Insert the Patella Reamer into the Patella ring until it's tip is touching the patella. 37 38