A vertebral arch pedicle positioner for spinal posterior minimally invasive screw fixation comprises a pair of same metal ring bodies (1) that cannot be penetrated by fluoroscopic rays, wherein the metal ring bodies (1) are fixedly connected through a connecting part (2), and the metal ring bodies (1) are located on a same plane. When the positioner is horizontally placed on a patient's back for fluoroscopy, projections of vertebral arch pedicles on two sides are simultaneously positioned in the metal ring bodies (1) through fine tuning of the positioner. The positioner can be used to easily and accurately position the vertebral arch pedicles on a body surface and accurately select a surgical small incision. Thus, a surgical operation position can be reached by separating a clearance between a multifidus muscle and a longissimus muscle under direct view under a condition that a length of the surgical incision remains the same as that formed by a prior minimally invasive spine surgery technique, and a condition that a muscle is damaged by a surgical approach due to percutaneous direct puncture is avoided. A screw fixation position on the vertebral arch pedicles and a vertebral arch can be easily reached for performing screw fixation and pressure reducing operations. The positioner is simple and convenient in operation, is time saving, and prevents excessive rays from being exposed.
展开▼
