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Patient-specific 3D-printed surgical guides for pedicle screw insertion: comparison of different guide design approaches

Ribera-Navarro, A; Shenoy, R; Cunningham, G; Vakharia, V; Gibson, A; Moazen, M; Kalaskar, DM; (2021) Patient-specific 3D-printed surgical guides for pedicle screw insertion: comparison of different guide design approaches. Journal of 3D Printing in Medicine 10.2217/3dp-2021-0002. (In press). Green open access

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Abstract

AIM: Patient-specific 3D-printed guides for pedicle screw insertion in spinal deformity surgery offer an alternative to image-guided, robotic and free-hand methods. Different design features can impact their accuracy and clinical applicability. The aim of this study was to compare the performance of three different guide designs with the nonguided free-hand technique. MATERIAL & METHODS: 3D-printed guides were design and tested using anatomical models of human spines and porcine cadaveric specimens. Three different guided groups (low, medium and full contact) and one nonguided group was formed. RESULTS & CONCLUSIONS: The design approach affected level of accuracy of screw placement. A variability in terms of accuracy of screw insertion between surgeon’s experience using nonguided/guided techniques was also observed, suggesting benefit for junior surgeons in improving surgical accuracy.

Type: Article
Title: Patient-specific 3D-printed surgical guides for pedicle screw insertion: comparison of different guide design approaches
Open access status: An open access version is available from UCL Discovery
DOI: 10.2217/3dp-2021-0002
Publisher version: https://doi.org/10.2217/3dp-2021-0002
Language: English
Additional information: © 2021 Ribera-Navarro, Sheboy, Cunningham et al. This work is licensed under the Creative Commons Attribution 4.0 License. To view a copy of this license (http://creativecommons.org/licenses/by/4.0/).
Keywords: 3D printing, cadaver, medio-lateral alignment, patient specific, pedicle screws, sagittal alignment, spinal fusion, surgical guides
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci > Department of Ortho and MSK Science
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/10130778
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