Evidence map›Paper›PMID 35927645›Full record

Trial reportBMC musculoskeletal disorders2022

Subsidence following cervical discectomy and implant-to-bone ratio.

Bartosz Godlewski, Adam Bebenek, Maciej Dominiak, Grzegorz Karpinski, Piotr Cieslik, Tomasz Pawelczyk

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC musculoskeletal disorders, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
3.2field-weighted citation impact, top 7% 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

15 citing papers in PubMed, 23 citations in OpenAlex.

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  8. Comparison of fusion rate, radiologic and clinical outcome between CaO-SiOEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2025
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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

6 authors at 5 institutions in 2 countries.

Bartosz GodlewskiDepartment of Orthopaedics and Traumatology, With Spinal Surgery Ward. Scanmed St. Raphael Hospital, ul. Adama Bochenka 12, 30-693, Cracow, Poland. bartoszgodlewski@wp.pl.ORCID http://orcid.org/0000-0003-0673-1480
Adam BebenekFaculty of Medicine, Jagiellonian University Medical College, Cracow, Poland.ORCID http://orcid.org/0000-0002-6687-1517
Maciej DominiakDepartment of Orthopaedics and Traumatology, With Spinal Surgery Ward. Scanmed St. Raphael Hospital, ul. Adama Bochenka 12, 30-693, Cracow, Poland.
Grzegorz KarpinskiDepartment of Orthopaedics and Traumatology, With Spinal Surgery Ward. Scanmed St. Raphael Hospital, ul. Adama Bochenka 12, 30-693, Cracow, Poland.
Piotr CieslikDepartment of Orthopaedics and Traumatology, Military Institute of Medicine, Warsaw, Poland.
Tomasz PawelczykDepartment of Affective and Psychotic Disorders, Medical University of Lodz, Lodz, Poland.ORCID http://orcid.org/0000-0002-1421-2050
Scanmed (Poland) · PLJagiellonian University · PLMedical University of Lodz · PLSt. Raphael's Hospital · PKWojskowy Instytut Medycyny Lotniczej · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundImplant subsidence is an undesirable effect after anterior cervical discectomy and fusion (ACDF). We investigated the relation between the rate of implant subsidence and the ratio of the implant surface area to the surface area of the adjacent bone.

methodsWe operated 170 disc spaces in a group of 104 patients. Two types of implants were used: 1) PEEK (polyetheretherketone) cages and 2) titanium-coated (TC) PEEK cages. Patients were randomised to receive a specific implant using a randomisation table. All implants had a surface area of 1.61 cm

resultsTwelve months after the surgery, computed tomography was performed on 86 patients (144 disc spaces). Furthermore, in 166 disc spaces and 102 patients, conventional radiographs were obtained. Subsidence was observed in 21% of the examined intervertebral spaces, and it was more frequently associated with higher values of bone surface area and lower values of the implant-to-bone surface ratio. The type of implant (PEEK vs TC-PEEK cages) did not significantly influence the rate of implant subsidence.

conclusionsImplant subsidence was significantly related to the value of a coefficient representing the ratio of the implant's surface area to the bone surface area of the adjacent vertebral bodies, with subsidence occurring significantly more rarely for coefficient values ≥ 0.37.

Indexed as

Spinal FusionCervical VertebraeDiskectomyHumansKetonesPolyethylene GlycolsProstheses and ImplantsTreatment OutcomeKetonesPolyethylene GlycolsCage sizePolyetheretherketone (PEEK)Radiological measurementsSubsidenceTitanium-coated PEEK

Identifiers

PMID35927645
PMCPMC9351094
OpenAlexW4289766614

What OpenQuestion holds

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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.