Evidence map›Paper›PMID 26810977›Full record

ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2016

Accuracy of 3D fluoroscopy-navigated anterior transpedicular screw insertion in the cervical spine: an experimental study.

Jan Bredow, Carolin Meyer, Max Joseph Scheyerer, Florian Siedek, Lars Peter Müller, Peer Eysel, Gregor Stein

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In one paragraph

Article in 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, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.9field-weighted citation impact, top 24% of its field
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

4 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Review
  3. Progress of the Anterior Transpedicular Screw in Lower Cervical Spine: A Review.Medical science monitor : international medical journal of experimental and clinical research · 2019
    Review
  4. Accuracy of 3D fluoro-navigated anterior transpedicular screws in the subaxial cervical spine: an experimental study on human specimens.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 · 2017
    Article
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

7 authors at 1 institution in 1 country.

Jan BredowDepartment of Orthopedic and Trauma Surgery, University Hospital of Cologne, Kerpener Strasse 62, 50937, Cologne, Germany. jan.bredow@uk-koeln.de.
Carolin MeyerDepartment of Orthopedic and Trauma Surgery, University Hospital of Cologne, Kerpener Strasse 62, 50937, Cologne, Germany.
Max Joseph ScheyererDepartment of Orthopedic and Trauma Surgery, University Hospital of Cologne, Kerpener Strasse 62, 50937, Cologne, Germany.
Florian SiedekDepartment of Radiology, University Hospital of Cologne, Cologne, Germany.
Lars Peter MüllerDepartment of Orthopedic and Trauma Surgery, University Hospital of Cologne, Kerpener Strasse 62, 50937, Cologne, Germany.
Peer EyselDepartment of Orthopedic and Trauma Surgery, University Hospital of Cologne, Kerpener Strasse 62, 50937, Cologne, Germany.
Gregor SteinDepartment of Orthopedic and Trauma Surgery, University Hospital of Cologne, Kerpener Strasse 62, 50937, Cologne, Germany.
University Hospital Cologne · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe technique of pedicle screw stabilization is finding increasing popularity for use in the cervical spine. Implementing anterior transpedicular screws (ATPS) in cervical spine offers theoretical advantages compared to posterior stabilization. The goal of the current study was the development of a new setting for navigated insertion of ATPS, combining the advantage of reduced invasiveness of an anterior approach with the technical advantages of navigation.

methods20 screws were implanted in levels C3 to C6 of four cervical spine models (SAWBONES(®) Cervical Vertebrae with Anterior Ligament) with the use of 3D fluoroscopy navigation system [Arcadis Orbic 3D, Siemens and VectorVision fluoro 3D trauma software (BrainLAB)]. The accuracy of inserted screws was analyzed according to postoperative CT scans and following the modified Gertzbein and Robbins classification.

results20 anterior pedicle screws were placed in four human cervical spine models. Of these, eight screws were placed in C3, two screws in C4, six screws in C5, and four screws in C6. 16 of 20 screws (80 %) reached a grade 1 level of accuracy according to the modified Gertzbein and Robbins Classification. Three screws (15 %) were grade 2, and one screw (5 %) was grade 3. Grade 4 and 5 positions were not evident. Summing grades 1 and 2 together as "good" positions, 95 % of the screws achieved this level. Only a single screw did not fulfill these criteria.

conclusionThe setting introduced in this study for navigated insertion of ATPS into cervical spine bone models is well implemented and shows excellent results, with an accuracy of 95 % (Gertzbein and Robbins grade 2 or better). Thus, this preliminary study represents a prelude to larger studies with larger case numbers on human specimens.

Indexed as

Pedicle ScrewsCervical VertebraeFluoroscopyHumansImaging, Three-DimensionalModels, AnatomicSurgery, Computer-AssistedAccuracy of screw insertionAnterior transpedicular screwsNavigated screw insertionSpine surgery

Identifiers

PMID26810977
OpenAlexW2262982260

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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.