Axial CT scanning on modified C1 pedicle screw placement

English Keywords:Atlas  Pedicle screw  Method of pedicle screw instertion  Aial computed tomography

English Abstract:

  【Abstract】 Objective：To evaluate the reliability and safety of modified C1 pedicle screw placement by axial CT scan.Method：30 adult human upper cervical specimens were randomly divided into group A and group B.The entry point at C1 pedicle screw in group