AO ASIF Preoperative Planner Ruler for the
Titanium Distal Femoral Nail
Use the AO ASIF Preoperative Planner Ruler for the Titanium Distal Femoral Nail to determine nail length and nail diameter. Note that all ruler images are enlarged 15% to account for average radiograph magnification; however, variation in magnification levels are common.
When selecting nail size, consider canal diameter, fracture pattern, and postoperative protocol.