Application of a new percutaneous multi-function pedicle locator in minimally invasive spine surgery

Abstract

A new percutaneous multi-function pedicle locator was designed to be used for personalized three-dimensional positioning of a pedicle in minimally invasive spine surgery without computer-assisted navigation technology. This article instructed the method and advantages of using a new percutaneous multi-function pedicle locator in minimally invasive surgery of the spine. Based on the position of a pedicles suggested by CT and X-ray images of a patient, 6 lines and 2 distances were used to determine the puncture point of a pedicle screw, while 2 angles were used to determine the inserting direction of a pedicle guide needle from the patient's body surface. The result of application of the locator was roughly compared with that of the conventional freehand technique. The potential benefits of using the locator included enhancing surgical accuracy, reducing the operation time, mitigating the harmful intra-operative radiation exposure, saving the costs and shortening the learning curve of young orthopedists. It was hoped that more doctors and patients will benefit from it.