Evidence map›Paper›PMID 30171444›Full record

ArticleInternational journal of computer assisted radiology and surgery2019

Standard navigation versus intraoperative computed tomography navigation in upper cervical spine trauma.

Barbara Carl, Miriam Bopp, Mirza Pojskic, Benjamin Voellger, Christopher Nimsky

Abstract read
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In one paragraph

Article in International journal of computer assisted radiology and surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  7. Review
  8. Article
  9. Comparison of iCT-based navigation and fluoroscopic-guidance for atlantoaxial screw placement in 78 patients with traumatic cervical spine injuries.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2024
    Article
  10. Article
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  12. Comparison of radiation exposure and surgery time between an intraoperative CT with automatic surface registration and a preoperative CT with manual surface registration in navigated spinal surgeries.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Barbara CarlDepartment of Neurosurgery, University of Marburg, Baldingerstrasse, 35043, Marburg, Germany. carlb@med.uni-marburg.de.ORCID http://orcid.org/0000-0003-3661-9908
Miriam BoppDepartment of Neurosurgery, University of Marburg, Baldingerstrasse, 35043, Marburg, Germany.ORCID http://orcid.org/0000-0003-1574-7572
Mirza PojskicDepartment of Neurosurgery, University of Marburg, Baldingerstrasse, 35043, Marburg, Germany.ORCID http://orcid.org/0000-0002-6123-5589
Benjamin VoellgerDepartment of Neurosurgery, University of Marburg, Baldingerstrasse, 35043, Marburg, Germany.ORCID http://orcid.org/0000-0001-8615-5393
Christopher NimskyDepartment of Neurosurgery, University of Marburg, Baldingerstrasse, 35043, Marburg, Germany.ORCID http://orcid.org/0000-0002-8216-9410

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIn surgery of C1-C2 fractures, standard navigation for screw placement based on preoperative image data was compared with intraoperative imaging guidance applying intraoperative computed tomography (iCT) with a special focus on accuracy of screw placement, workflow, and radiation exposure.

methodsA single surgeon series of 16 consecutive patients with C1-C2 trauma was retrospectively analyzed. Seven patients were operated with standard navigation; preoperative image data were registered by a 20-point surface-matching process for each vertebra. Nine patients were operated with iCT guidance, allowing automatic navigation registration. Screw placement was examined and graded with either iCT or postoperative CT. Dose length product of CT and dose area products of fluoroscopy scans were assessed; effective radiation doses were estimated based on conversion factors. Radiation doses of intraoperative and postoperative X-ray and/or CT diagnostics for each group were summarized to compare the total effective doses.

resultsA total number of 72 screws were placed, 26 in the standard navigation group including 24 screws in C1 and C2, and 46 screws in the iCT group including 34 screws in C1 and C2. 15.38% (n = 4) of the C2 screws showed a grade 1 deviation and 3.8% (n = 1) a grade 2 deviation applying standard navigation. There was no misplacement of screws in the iCT group. Mean operating time in the standard navigation group was 186.57 min versus 157.11 min in the iCT group, while the mean summarized effective dose was 1.129 mSv in the standard navigation and 2.129 mSv in the iCT group.

conclusioniCT navigated surgery can lead to higher accuracy and shorter operating time compared to standard navigated operations. iCT is a safe and straightforward procedure allowing reduction in radiation exposure of the medical staff, while modified scan protocols resulted in a radiation exposure that is lower than in standard diagnostic neck CT.

Indexed as

AgedAged, 80 and overBone ScrewsCervical VertebraeFemaleFluoroscopyHumansMaleMiddle AgedRadiation ExposureRetrospective StudiesSpinal FracturesTomography, X-Ray ComputedYoung AdultC2 fractureEffective doseIntraoperative computed tomographyNavigation registrationRadiation exposureScrew placementSpinal navigation

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.