Evidence map›Paper›PMID 36998594›Full record

ArticleFrontiers in surgery2023

A novel 3D-printed laryngoscope with integrated working channels for laryngeal surgery.

Linus L Kienle, Leon R Schild, Felix Böhm, Rene Grässlin, Jens Greve, Thomas K Hoffmann, Patrick J Schuler

Open access · goldFull text read
In one paragraph

Article in Frontiers in surgery, 2023. 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
1.1field-weighted citation impact, top 25% 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

3 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Exploratory assessment of an endolaryngeal surgical model with a novel hyperangulated 3D printed laryngoscope.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025
    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

7 authors.

Linus L KienleDepartment of Otorhinolaryngology, Head and Neck Surgery, Ulm University Medical Center, Ulm, Germany.
Leon R SchildDepartment of Otorhinolaryngology, Head and Neck Surgery, Ulm University Medical Center, Ulm, Germany.
Felix BöhmDepartment of Otorhinolaryngology, Head and Neck Surgery, Ulm University Medical Center, Ulm, Germany.
Rene GrässlinDepartment of Otorhinolaryngology, Head and Neck Surgery, Ulm University Medical Center, Ulm, Germany.
Jens GreveDepartment of Otorhinolaryngology, Head and Neck Surgery, Ulm University Medical Center, Ulm, Germany.
Thomas K HoffmannDepartment of Otorhinolaryngology, Head and Neck Surgery, Ulm University Medical Center, Ulm, Germany.
Patrick J SchulerDepartment of Otorhinolaryngology, Head and Neck Surgery, Ulm University Medical Center, Ulm, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: For the surgical treatment of early-stage laryngeal cancer, the use of transoral laser microsurgery (TLM) has emerged as the gold standard. However, this procedure requires a straight line of sight to the operating field. Therefore, the patient's neck needs to be brought into a hyperextended position. In a considerable number of patients, this is not possible due to anomalies in the cervical spine anatomy or soft tissue scarring, e.g., after radiation. In these cases, adequate visualization of relevant laryngeal structures cannot be ensured using a conventional rigid operating laryngoscope, which may negatively affect the outcome of these patients. Methods: We present a system based on a 3D-printed prototype of a curved laryngoscope with three integrated working channels (sMAC). The curved profile of the sMAC-laryngoscope is specifically adapted to the nonlinear anatomy of the upper airway structures. The central working channel provides access for flexible video endoscope imaging of the operating field while the two remaining channels provide access for flexible instrumentation. In a user study ( Results: All participants of the user study were able to visualize, reach and manipulate the relevant laryngeal landmarks. Reaching those took significantly less time in the second attempt compared to the first one (27.5 s ± 5.2 s vs. 39.7 s ± 16.5 s, Conclusion: Possibly, the proposed system may develop into an alternative treatment option for patients with early-stage laryngeal cancer and restricted mobility of the cervical spine in the future. Further improvements of the system could include finer end effectors and a flexible instrument with a laser cutting tool.

Indexed as

3D-printingflexible instrumentslaryngeal cancerlaryngeal surgeryTORSvideo endoscopy

Identifiers

PMID36998594
PMCPMC10043209
OpenAlexW4324145257

What OpenQuestion holds

Textfull text, public
LicenceCC BY
measurements read7
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.