Evidence map›Paper›PMID 31666550›Full record

ArticleScientific reports2019

Precision and safety of Multilevel Cervical Transpedicular Screw Fixation with 3D Patient-Specific Guides; A Cadaveric Study.

Andrea Sallent, Manuel Ramírez, Jordi Catalá, Alfonso Rodríguez-Baeza, Joan Bagó, Matías de Albert, Roberto Vélez

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 21% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Template guided cervical pedicle screw instrumentation.North American Spine Society journal · 2022
    Article
  8. Article
  9. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Andrea SallentOrthopaedic Department, Hospital Vall d'Hebron. Universitat Autónoma de Barcelona, Barcelona, Spain. andreasallent@gmail.com.ORCID http://orcid.org/0000-0003-4041-4665
Manuel RamírezOrthopaedic Department, Hospital Vall d'Hebron. Universitat Autónoma de Barcelona, Barcelona, Spain.
Jordi CataláRadiology Department, Institut Guirado, Barcelona, Spain.
Alfonso Rodríguez-BaezaDepartment of Morphological Science, Universitat Autonoma de Barcelona, Barcelona, Spain.
Joan BagóOrthopaedic Department, Hospital Vall d'Hebron. Universitat Autónoma de Barcelona, Barcelona, Spain.
Matías de AlbertRadiology Department, Vall d'Hebron University Hospital, Barcelona, Spain.
Roberto VélezOrthopaedic Department, Hospital Vall d'Hebron. Universitat Autónoma de Barcelona, Barcelona, Spain.
Universitat Autònoma de Barcelona · ESVall d'Hebron Hospital Universitari · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim is to design a patient-specific instrument (PSI) for multilevel cervical pedicle screw placement from C2 to C7, as well as verifying reliability and reproducibility. Computed tomography (CT) scans were obtained from 7 cadaveric cervical spines. Using Mimics software, semiautomatic segmentation was performed for each cervical spine, designing a 3D cervical spine bone model in order to plan transpedicular screw fixation. A PSI was designed according to the previously cited with two cannulated chimneys to guide the drill. The guides were 3D printed and surgeries performed at the laboratory. Postoperative scans were obtained to study screw placement. Sixty-eight transpedicular screws were available for study. 61.8% of all screws were within the pedicle or partially breached <4 mm. No differences were observed between cervical levels. None of these screws had neurovascular injury. Of the 27 screws with a grade 3 (screw outside the pedicle; 39.7%), only 2 had perforation of the transverse foramen and none of them would have caused a neural injury. In conclusion, multilevel PSI for cervical pedicle screw is a promising technology that despite showing improvements regarding free-hand technique requires further studies to improve the positioning of the PSI and their accuracy.

Indexed as

Pedicle ScrewsCadaverCervical VertebraeFemaleHumansMaleNeckSpinal FusionTomography, X-Ray Computed

Identifiers

PMID31666550
PMCPMC6821841
OpenAlexW2982477503

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.