McCulloch Narrow Muscle Blade - TitaniumDDP Elite USA McCulloch Narrow Muscle Blade is ideally suited for muscular retraction in a wide variety of spinal surgeries such as discectomies. This particular instrument is crafted for use along side the McCulloch retractor frame. It is made from titanium which makes it stronger and more durable than stainless steel as well as lightweight and resistance to corrosion, staining and pitting. Additionally it is available in six different lengths