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. 2019 Feb 28;16(3):187-190.

doi: 10.1016/j.jor.2019.02.009. eCollection 2019 May-Jun.

Is free hand a safe technique for thoracic pedicle screw insertion? A CT based randomised study

Vinod V Rajan¹, Chandhan Murugan²

Affiliations

Affiliations

¹ Head of Spine Surgery and Senior Consultant, Department of Bone and Joint Care, Meitra Hospital, Calicut, Kerala, India.
² Department of Orthopaedics, GMC Kollam, Paripally, Kollam, Kerala, India.

PMID: 30906120
PMCID: PMC6411900
DOI: 10.1016/j.jor.2019.02.009

Is free hand a safe technique for thoracic pedicle screw insertion? A CT based randomised study

Vinod V Rajan et al. J Orthop. 2019.

. 2019 Feb 28;16(3):187-190.

doi: 10.1016/j.jor.2019.02.009. eCollection 2019 May-Jun.

Authors

Vinod V Rajan¹, Chandhan Murugan²

Affiliations

¹ Head of Spine Surgery and Senior Consultant, Department of Bone and Joint Care, Meitra Hospital, Calicut, Kerala, India.
² Department of Orthopaedics, GMC Kollam, Paripally, Kollam, Kerala, India.

PMID: 30906120
PMCID: PMC6411900
DOI: 10.1016/j.jor.2019.02.009

Erratum in

Erratum regarding missing Declaration of Competing Interest statements in previously published articles.
[No authors listed] [No authors listed] J Orthop. 2020 Dec 15;24:292. doi: 10.1016/j.jor.2020.12.005. eCollection 2021 Mar-Apr. J Orthop. 2020. PMID: 33994701 Free PMC article.

No abstract available

Keywords: Accuracy; Fluoroscopy guidance; Free hand; Pedicle screw; Safety; Thoracic spine.

PubMed Disclaimer

Figures

Fig. 1A — Fig. 1A
Pedicle Screw entry point marked using the intersection method.

Fig. 1B — Fig. 1B
Entry created with starter.

Fig. 2A — Fig. 2A
Pedicle screw tract created using gear shift.

Fig. 2B — Fig. 2B
Depth of the tract based on the markings on the gear shift.

Fig. 3A — Fig. 3A
Pedicle entry created under fluoroscopy guidance – Antero-posterior view.

Fig. 3B — Fig. 3B
Pedicle tract created under fluoroscopy guidance – Antero-posterior view.

Fig. 4 — Fig. 4
Depth of tract under fluoroscopy guidance– Lateral view.

Fig. 5 — Fig. 5
Post-operative CT assessment of screw position within the pedicle.

See this image and copyright information in PMC

References

1. Mattei Tobias A, Meneses Murilo S, Milano Jeronimo B, Ramina Ricardo. Free-hand” technique for thoracolumbar pedicle screw instrumentation: critical appraisal of current “State-of-Art”. Neurol India. 2009;57:715–721. - PubMed
1. Zeiller S.C., Lee J., Lim M, Vaccaro A.R. Posterior thoracic segmental pedicle screw instrumentation: evolving methods of safe and effective placement. Neurol India. 2005;53:458–465. - PubMed
1. Liljenqvist U.R., Halm H.F., Link T.M. Pedicle screw instrumentation of the thoracic spine in idiopathic scoliosis. Spine. 1997;22:2239–2245. - PubMed
1. Cinotti G., Gumina S., Ripani M., Postacchini F. Pedicle instrumentation in the thoracic spine. A morphometric and cadaveric study for placement of screws. Spine. 1999;24:114–119. - PubMed
1. Weinstein J.N., Spratt K.F., Spengler D., Brick C., Reid S. Spinal pedicle fixation: reliability and validity of roentgenogram-based assessment and surgical factors on successful screw placement. Spine. 1988;13:1012–1018. - PubMed

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