Evidence map›Paper›PMID 39800800›Full record

SynthesisMusculoskeletal surgery2025

3D-printed drill guide versus fluoroscopic-guided free-hand technique for pedicle screw insertion in the upper cervical spine: a systematic review and meta-analysis.

A Al-Saadawi, S Tehranchi, R Chekuri, A Oehlen, F Sedra

Abstract readSystematic ReviewMeta-AnalysisComparative Study
In one paragraph

Synthesis in Musculoskeletal surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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

3 citing papers in PubMed.

  1. Three-Dimensional Printing in Pediatric Orthopaedics: Cost Analysis and Emerging Applications.Journal of the Pediatric Orthopaedic Society of North America · 2026
    Review
  2. [Experimental study of patient-specific three-dimensional-printed drill guide-assisted CZhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026
    Article
  3. 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

5 authors.

A Al-SaadawiSchool of Medicine, Faculty of Medicine and Dentistry, Queen Mary University of London, London, England. a.n.al-saadawi@smd20.qmul.ac.uk.ORCID http://orcid.org/0009-0000-5105-0903
S TehranchiSchool of Medicine, Faculty of Medicine and Dentistry, Queen Mary University of London, London, England.ORCID http://orcid.org/0009-0006-0912-903X
R ChekuriDepartment of Trauma and Orthopaedic Surgery, Barts Health NHS Trust, Royal London Hospital, London, E11BB, England.ORCID http://orcid.org/0000-0001-9055-969X
A OehlenSchool of Medicine, Faculty of Medicine and Dentistry, Queen Mary University of London, London, England.ORCID http://orcid.org/0009-0001-3500-2175
F SedraDepartment of Trauma and Orthopaedic Surgery, Barts Health NHS Trust, Royal London Hospital, London, E11BB, England.ORCID http://orcid.org/0000-0001-7406-4144

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

3D-printed (3DP) drill guides have demonstrated significant potential to accurately guide pedicle screw insertion in spinal surgery. However, their role in the upper cervical spine is not well established. This review aimed to compare the efficacy and safety of 3DP drill guides to the conventional fluoroscopic-guided free-hand technique for pedicle screw insertion in the upper cervical spine. A comprehensive literature search was conducted across five databases (Medline, Scopus, CENTRAL, Web of Science, and Embase). The meta-analysis compared the accuracy of pedicle screw placement, screw placement time, operative time, blood loss, fluoroscopy usage, and post-operative JOA and VAS scores between the two approaches. Seven studies were included in the review, encompassing 386 patients and 1,512 screws. The meta-analysis demonstrated that 3DP drill guides increased the rate of perfect screw insertion (OR: 4.34, P < 0.00001) and lowered the incidence of moderate (OR: 0.26, P < 0.00001) and poor (OR: 0.09, P < 0.00001) screw insertion compared to the free-hand technique. Additionally, operative time (MD: -36.07, P < 0.00001), blood loss (MD: -83.82, P < 0.00001), and fluoroscopy usage (MD: -3.47, P < 0.0001) was significantly reduced in the 3DP cohort. No significant difference was detected in screw placement time (MD: -2.65, P = 0.07), or post-operative JOA (MD: 0.17, P = 0.47), and VAS (MD: -0.09, P = 0.19) scores between the two cohorts. The review demonstrated that 3DP drill guides are a safe and effective tool to assist pedicle screw fixation in the upper cervical spine.

Indexed as

Cervical VertebraePedicle ScrewsPrinting, Three-DimensionalSpinal FusionSurgery, Computer-AssistedFluoroscopyHumansOperative Time3D-printed drill guideFree-hand techniquePedicle screwUpper cervical spine

Identifiers

PMID39800800
PMCPMC12423216

What OpenQuestion holds

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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.