The feasibility of a new self-guided pedicle tap for pedicle screw placement: an anatomical study

BMC Musculoskeletal Disorders

Research

Peng Wang¹  Xiaoji Zhou²  Yongtao Liu³  Yuan Li⁴ 

[1] Department of Clinical Laboratory, Xuzhou Central Hospital, 221000, Xuzhou Jiangsu, China;Department of Orthopedics, The People’s Hospital of Huishan, 214000, Wuxi Jiangsu, China;Department of Spine Surgery, Affiliated Hospital of Xuzhou Medical University, 221000, Xuzhou Jiangsu, China;Medical Imaging Department, Affiliated Hospital of Xuzhou Medical University, 221000, Xuzhou Jiangsu, China;

关键词: Pedicle screw placement;    Anatomical study;    Tap;    Thoracolumbar spine;   

DOI  :  10.1186/s12891-023-06681-7

 received in 2022-04-28, accepted in 2023-06-30,  发布年份 2023

来源: Springer

【 摘 要 】

PurposeTo investigate the safety and accuracy of applying a new self-guided pedicle tap to assist pedicle screw placement.MethodsA new self-guided pedicle tap was developed based on the anatomical and biomechanical characteristics of the pedicle. Eight adult spine specimens, four males and four females, were selected and tapped on the left and right sides of each pair of T1-L5 segments using conventional taps (control group) and new self-guided pedicle taps (experimental group), respectively, and pedicle screws were inserted. The screw placement time of the two groups were recorded and compared using a stopwatch. The safety and accuracy of screw placement were observed by CT scanning of the spine specimens and their imaging results were graded according to the Heary grading criteria.ResultsScrew placement time of the experimental group were (5. 73 ± 1. 18) min in thoracic vertebrae and (5. 09 ± 1. 31) min in lumbar vertebrae respectively. Screw placement time of the control group were respectively (6. 02 ± 1. 54) min in thoracic vertebrae and (5.51 ± 1.42) min in lumbar vertebrae. The difference between the two groups was not statistically significant (P > 0. 05). The Heary grading of pedicle screws showed 112 (82.35%) Heary grade I screws and 126 (92.65%) Heary grade I + II screws in the experimental group, while 96 (70.59%) Heary grade I screws and 112 (82.35%) Heary grade I + II screws in the control group.The difference between the two groups was statistically significant (P < 0.05).ConclusionThe new self-guided pedicle tap can safely and accurately place thoracic and lumbar pedicle screws with low-cost and convenient procedure,which indicates a good clinical application value.

【 授权许可】

CC BY   
© The Author(s) 2023

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