The material of the PFNA femoral gamma interlocking intramedullary nail system is titanium alloy, which consists of the PFNA femoral gamma interlocking intramedullary nail II (from the standard type and the long type to the left and right), locking nails, blade nails, lag screws, tail caps And the lock nail tail cap composition. The 5-degree valgus angle at the proximal end of the main screw provides a minimally invasive approach to the apex of the greater trochanter. The trapezoidal section design at the proximal end of the main screw enhances the stability of the proximal femur and facilitates early weight-bearing. Cannulated stabilizing screws pre-placed in the tail cap can be tightened if necessary to eliminate excessive postoperative slippage. The unique joint interlocking screw design provides good stability and anti-rotation ability, and a significant compression effect during the process of screwing in the compression screw. The distal screw hole can choose dynamic or static interlocking, using 5mm inner hexagon to hold the interlocking screw, and the unique hairpin bifurcation design at the distal end can reduce stress concentration and facilitate fractures around the distal prosthesis. The product is improved and optimized by PFNA, which is more suitable for elderly patients with osteoporosis. Under the current global aging trend, it will definitely get a broader market.