Evidence map›Paper›PMID 26863310›Full record

ArticlePloS one2016

Electromagnetic Real Time Navigation in the Region of the Posterior Pelvic Ring: An Experimental In-Vitro Feasibility Study and Comparison of Image Guided Techniques.

Miguel Pishnamaz, Christoph Wilkmann, Hong-Sik Na, Jochen Pfeffer, Christoph Hänisch, Max Janssen, Philipp Bruners, Philipp Kobbe, Frank Hildebrand, Thomas Schmitz-Rode and 1 more

Open access · goldAbstract readComparative Study
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
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

8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Evaluation of Needle Manipulation Controller Subject to Uncertainty of Tip Pose Feedback: A Simulation Study.... International Symposium on Medical Robotics. International Symposium on Medical Robotics · 2025
    Article
  4. [Early effectiveness of computer navigation system-assisted transiliac-transsacral screws placement for posterior pelvic ring injuries].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2023
    Article
  5. A real-time 3D electromagnetic navigation system for percutaneous pedicle screw fixation in traumatic thoraco-lumbar fractures: implications for efficiency, fluoroscopic time, and accuracy compared with those of conventional fluoroscopic guidance.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 · 2022
    Article
  6. Utility of Image Guidance in the Localization of Disappearing Colorectal Liver Metastases.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2019
    Article
  7. Article
  8. Comparison of Accuracy of Pedicle Screw Insertion Among 4 Guided Technologies in Spine Surgery.Medical science monitor : international medical journal of experimental and clinical research · 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

11 authors at 1 institution in 1 country.

Miguel PishnamazUniversity of Aachen Medical Center, Department of Orthopedic Trauma, Aachen, Germany.
Christoph WilkmannUniversity of Aachen Medical Center, Department of Diagnostic and Interventional Radiology, Aachen, Germany.
Hong-Sik NaUniversity of Aachen Medical Center, Department of Diagnostic and Interventional Radiology, Aachen, Germany.
Jochen PfefferUniversity of Aachen Medical Center, Department of Diagnostic and Interventional Radiology, Aachen, Germany.
Christoph HänischHelmholtz Institute of RWTH Aachen University & Hospital, Chair of Medical Engineering, Aachen, Germany.
Max JanssenUniversity of Aachen Medical Center, Department of Orthopedic Trauma, Aachen, Germany.
Philipp BrunersUniversity of Aachen Medical Center, Department of Diagnostic and Interventional Radiology, Aachen, Germany.
Philipp KobbeUniversity of Aachen Medical Center, Department of Orthopedic Trauma, Aachen, Germany.
Frank HildebrandUniversity of Aachen Medical Center, Department of Orthopedic Trauma, Aachen, Germany.
Thomas Schmitz-RodeHelmholtz Institute of RWTH Aachen University & Hospital, Institute of Applied Medical Engineering, Aachen, Germany.
Hans-Christoph PapeUniversity of Aachen Medical Center, Department of Orthopedic Trauma, Aachen, Germany.
RWTH Aachen University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundElectromagnetic tracking is a relatively new technique that allows real time navigation in the absence of radiation. The aim of this study was to prove the feasibility of this technique for the treatment of posterior pelvic ring fractures and to compare the results with established image guided procedures.

methodsTests were performed in pelvic specimens (Sawbones®) with standardized sacral fractures (Type Denis I or II). A gel matrix simulated the operative approach and a cover was used to disable visual control. The electromagnetic setup was performed by using a custom made carbon reference plate and a prototype stainless steel K-wire with an integrated sensor coil. Four different test series were performed: Group OCT: Optical navigation using preoperative CT-scans; group O3D: Optical navigation using intraoperative 3-D-fluoroscopy; group Fluoro: Conventional 2-D-fluoroscopy; group EMT: Electromagnetic navigation combined with a preoperative Dyna-CT. Accuracy of screw placement was analyzed by standardized postoperative CT-scan for each specimen. Operation time and intraoperative radiation exposure for the surgeon was documented. All data was analyzed using SPSS (Version 20, 76 Chicago, IL, USA). Statistical significance was defined as p< 0.05.

results160 iliosacral screws were placed (40 per group). EMT resulted in a significantly higher incidence of optimal screw placement (EMT: 36/40) compared to the groups Fluoro (30/40; p< 0.05) and OCT (31/40; p< 0.05). Results between EMT and O3D were comparable (O3D: 37/40; n.s.). Also, the operation time was comparable between groups EMT and O3D (EMT 7.62 min vs. O3D 7.98 min; n.s.), while the surgical time was significantly shorter compared to the Fluoro group (10.69 min; p< 0.001) and the OCT group (13.3 min; p< 0.001).

conclusionElectromagnetic guided iliosacral screw placement is a feasible procedure. In our experimental setup, this method was associated with improved accuracy of screw placement and shorter operation time when compared with the conventional fluoroscopy guided technique and compared to the optical navigation using preoperative CT-scans. Further studies are necessary to rule out drawbacks of this technique regarding ferromagnetic objects.

Indexed as

Models, AnatomicBiomimetic MaterialsBone ScrewsElectromagnetic RadiationFracture Fixation, InternalFractures, BoneHumansIliumImaging, Three-DimensionalSacrumSurgery, Computer-AssistedTime FactorsTomography, X-Ray Computed

Identifiers

PMID26863310
PMCPMC4749384
OpenAlexW2264538809

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.