Chinese Journal of Tissue Engineering Research ›› 2011, Vol. 15 ›› Issue (48): 9066-9069.doi: 10.3969/j.issn.1673-8225.2011.48.034

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Individual entrance point location for pedicle screw implantation

Han Jin-hua1, Ma De-chun1, Bai Miao2, Chen Li-juan3   

  1. 1Department of Orthopedics, 2Second Department of Ocular Fundus Diseases, 3Fouth Department of Orthopedics, Second Hospital of Jilin University, Changchun  130041, Jilin Province, China
  • Received:2011-08-15 Revised:2011-09-10 Online:2011-11-26 Published:2011-11-26
  • About author:Han Jin-hua★, Studying for master’s degree, Second Department of Orthopedics, Second Hospital of Jilin University, Changchun 130041, Jilin Province, China Ma De-chun, Nurse in charge, Second Department of Orthopedics, Second Hospital of Jilin University, Changchun 130041, Jilin Province, China 286582787@qq.com Han Jin-hua and Ma De-chun contributed equally to this study.

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Abstract:

BACKGROUND: Implanted positioning of pedicle screws is an important factor for successful pedicle screw implantation.
OBJECTIVE: To investigate the technique of implanting pedicle screws and the feasibility of popularizing the application of pedicle screw fixation.
METHODS: The first author searched PubMed database and CNKI database for articles regarding clinical safety and long-term effect of different methods for entrance point location of pedicle screw implantation. Finally, 24 articles were included in result analysis.
RESULTS AND CONCLUSION: There are three steps for pedicle screw implantation: positioning, orientation, and depth setting. Roy-Camille method, Weinstein method, Mager method and Louis method are used for pedicle screw positioning. Orientation of pedicle screws includes sub-horizontal angle and sagittal angle. It has been proved by clinical practice that the pedicle screw occupying 80% of the vertebral body is appropriate. To ensure the individual entrance point positioning of pedicle screw implantation based on the laminar edge is feasible and reliable with small wound and high accuracy.

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