Evidence map›Paper›PMID 28963159›Full record

Trial reportThe bone & joint journal2017

Transforaminal lumbar interbody fusion using polyetheretherketone oblique cages with and without a titanium coating: a randomised clinical pilot study.

M Rickert, C Fleege, T Tarhan, S Schreiner, M R Makowski, M Rauschmann, M Arabmotlagh

Registry-linked trialAbstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in The bone & joint journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05691062 (A Prospective, Randomized Comparison of Titanium vs. PEEK Fusion Devices in 1 Level TLIF), which is not on this map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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.

NCT05691062 phase4enrolling by invitationnot on this mapstarted 2024, after this paper: background citation

A Prospective, Randomized Comparison of Titanium vs. PEEK Fusion Devices in 1 Level TLIF

TypeinterventionalSponsorTwin Cities Spine CenterRan2024 to 2028Enrolled80ConditionsSpine Fusion, Lumbar Spondylolisthesis, Lumbar StenosisArmsTitanium Fusion Device, PEEK Fusion Device
3 · Its place in the literature

Who cites it

22 citing papers in PubMed.

  1. Clinical and radiological results of TLIF surgery with titanium-coated PEEK or uncoated PEEK cages: a prospective single-centre randomised study.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 · 2024
    Trial
  2. PLIF surgery with titanium-coated PEEK or uncoated PEEK cages: a prospective randomised clinical and radiological study.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 · 2021
    Trial
  3. Lateral parallel insertion of large footprint cages in PLIF promotes early fusion and fewer endplate cysts.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 · 2026
    Article
  4. Review
  5. Optimal cage biomaterials for fusion and subsidence outcomes in lumbar spinal fusion: a network meta-analysis of 4881 patients.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 · 2026
    Review
  6. Review
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  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Interbody Fusions in the Lumbar Spine: A Review.HSS journal : the musculoskeletal journal of Hospital for Special Surgery · 2020
    Review
  17. Article
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  19. Article
  20. Observational
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

M RickertOrthopaedic University Hospital Friedrichsheim gGmbH, Marienburgstraße 2, 60528 Frankfurt am Main, Germany.
C FleegeOrthopaedic University Hospital Friedrichsheim gGmbH, Marienburgstraße 2, 60528 Frankfurt am Main, Germany.
T TarhanOrthopaedic University Hospital Friedrichsheim gGmbH, Marienburgstraße 2, 60528 Frankfurt am Main, Germany.
S SchreinerOrthopaedic University Hospital Friedrichsheim gGmbH, Marienburgstraße 2, 60528 Frankfurt am Main, Germany.
M R MakowskiDepartment of Radiology and Neuroradiology, Charité-University, Charitéplatz 1, 10117 Berlin, Germany.
M RauschmannOrthopaedic University Hospital Friedrichsheim gGmbH, Marienburgstraße 2, 60528 Frankfurt am Main, Germany.
M ArabmotlaghOrthopaedic University Hospital Friedrichsheim gGmbH, Marienburgstraße 2, 60528 Frankfurt am Main, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsWe compared the clinical and radiological outcomes of using a polyetheretherketone cage with (TiPEEK) and without a titanium coating (PEEK) for instrumented transforaminal lumbar interbody fusion (TLIF). MATERIALS AND

methodsWe conducted a randomised clinical pilot trial of 40 patients who were scheduled to undergo a TLIF procedure at one or two levels between L2 and L5. The Oswestry disability index (ODI), EuroQoL-5D, and back and leg pain were determined pre-operatively, and at three, six, and 12 months post-operatively. Fusion rates were assessed by thin slice CT at three months and by functional radiography at 12 months.

resultsAt final follow-up, one patient in each group had been lost to follow-up. Two patients in each of the PEEK and TiPEEK groups were revised for pseudarthrosis (p = 1.00). The rate of complete or partial fusion at three months was 91.7% in both groups. Overall, there were no significant differences in ODI or in radiological outcomes between the groups.

conclusionFavourable results with identical clinical outcomes and a high rate of fusion was seen in both groups. The titanium coating appears to have no negative effects on outcome or safety in the short term. A future study to determine the effect of titanium coating is warranted. Cite this article:

Indexed as

Coated Materials, BiocompatibleKetonesPolyethylene GlycolsTitaniumAgedBenzophenonesFemaleFollow-Up StudiesHumansLow Back PainLumbar VertebraeMalePilot ProjectsPolymersProsthesis DesignSpinal FusionBenzophenonesCoated Materials, BiocompatibleKetonespolyetheretherketonePolyethylene GlycolsPolymersTitaniumCoatingFusionLumbar spinePolyetheretherketoneTitaniumTransforaminal lumbar interbody fusion

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Registered trials

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.