a device , system and method for orthopedic spine surgery using a novel screw - based retractor , disclosed herein , that allows for access to the spine through a minimally or less invasive approach . the retractor device is designed to be coupled to a pedicle screw and then to have opposed arms of the retractor spread apart to open the wound proximally . the retractor is removed by pulling it out of the wound whereby the retractor is deformed to pass over the pedicle screw head . the retractor is intended to be made of a stiff plastic material , sterile packaged and disposable after one use . a system and method for using the retractor and performing a minimally invasive spine surgical procedure are also disclosed .