Fluoroscopic images-based aiming and targeting system with two line lasers for insertion guidance of interlocking screw.

Purpose: Minimally invasive surgery is widely used for managing fractures; however, it is difficult to determine the exact screwing position of intramedullary nails inserted into bone. To address this problem, we developed the aiming and targeting system by laser (ATLAS) using two line lasers to mark the position of the surgical tool directly on the skin.

Methods: ATLAS consists of a laser module, controller, personal computer, and display device.