The development and use of symmetric adjustable pedicle drilling guild

English Keywords:Pedicle drilling guild,Pedicle screw,Lumbar spondylolisthesis,Thora-lumbar vertebrae fracture,

English Abstract:

  Objective:To develop a kind of pedicle drilling guid for operation in order to improve the successful rate and quality of positioning pedicle screw.Method:To guild the pedicle screw accurately during operation on the basis of the digital data of the trans