Evidence map›Paper›PMID 42446840›Full record

ArticlePhysical and engineering sciences in medicine2026

Influence of coil number on the retention strength of ureteral stents: an experimental investigation.

Achmad Syaifudin, Mohammad R A Moravi, Maulana Y Izzuddin, Zulaikha N Pangestu, Lukman Hakim, Mudhita Z Ritonga, Amaliya Rasyida, Siti Nurkhamiddah, Katsuhiko Sasaki

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Article in Physical and engineering sciences in medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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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

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

9 authors.

Achmad SyaifudinDepartment of Mechanical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia. syaifudin@its.ac.id.ORCID https://orcid.org/0000-0001-8109-9396
Mohammad R A MoraviDepartment of Mechanical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia.
Maulana Y IzzuddinDepartment of Mechanical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia.
Zulaikha N PangestuDepartment of Mechanical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia.
Lukman HakimDepartment of Urology, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia.
Mudhita Z RitongaLaboratory of Veterinary Anatomy, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Indonesia.
Amaliya RasyidaDepartment of Materials and Metallurgical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia.
Siti NurkhamiddahDepartment of Chemical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia.
Katsuhiko SasakiDivision of Human Mechanical Systems and Design, Faculty of Engineering, Hokkaido University, Sapporo, Japan.

Funding

Lembaga Pengelola Dana Pendidikan No 4299/B3/DT.03.08/2025 & No 3029/PKS/ITS/2025
6 · The paper itself

Abstract

Ureteral stents are temporary implantable devices used to maintain urinary drainage and prevent obstruction. Most designs incorporate pigtail coils to reduce migration; however, the contribution of terminal coil configuration to retention strength remains unclear. This study evaluated the retention behavior of five commercially available Double-J ureteral stents commonly used in Indonesia, representing different intended indwelling durations and terminal coil configurations. Stent length, outer diameter, inner diameter, material, angular sweep, and estimated coil number were recorded. Terminal coil number was estimated from available pre-test photographs using manual image-based angular sweep analysis. Specimens were immersed in artificial urine for one month and tested according to ASTM F1828-22 using a custom pull-out device. 1.5 coil stents showed higher mean retention forces (0.061-0.065 N) than 1 coil stents (0.010-0.034 N). Statistical analysis confirmed significant differences among stent types (F = 72.76, p = 4.665 × 10

Indexed as

Materials TestingStentsUreterHumansASTM F1828-22Coil numberRetention strengthStent migrationUreteral stent

Identifiers

PMID42446840

What OpenQuestion holds

Textmetadata
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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.