The Gamma3 RC Lag Screw can be used with either nail type and may be used to treat patients with highly osteoporotic bone. The RC lag screw combines the standard Gamma3 lag screw with a spreading U-clip. U-clip provides an additional 2mm of spread to increase the surface area for enhanced rotational control and resistance to cut-out. The RC Lag Screw showed a 15% higher resistance to migration over the standard lag screw.1 Source: 1. Born et al. Hip Screw Migration Testing: First Results for Hip Screws and Helical Blades utilizing a new oscillating Test Method. J Orthop Res. 2011 May;29(5):760-6.