Medical devices, namely, surgical implements and tools, namely, pliers, distracting probes, screwdrivers, keys, square awls, palpators for use in spinal surgery; osteosynthesis and arthrodesis equipment for the spinal column, namely, screws, rods, plates, and related devices, namely, nuts, washers, connecting bars, hooks, cages, spacers, spinal prosthesis, vertebral body replacement devices, disc prosthesis; spinal implant devices for straightening and stabilization of the spinal column, namely, 3D navigation apparatus with specific instruments dedicated to spinal implants positioning and stabilization; spinal implants composed of artificial material, namely, poly-ether-ether-ketone anterior and posterior implants for stabilizing the spine, vertebral body replacement and fusion implants