Evidence map›Paper›PMID 35950498›Full record

ArticleAnnals of the Royal College of Surgeons of England2023

Does titanium cage subsidence affect clinical outcomes in ACDF surgery? A tertiary centre experience.

W M Milczynska, A Ahmad, A I Ahmed, J R Panchmatia, B Fakouri, P Liantis, P Panteliadis

Abstract read
In one paragraph

Article in Annals of the Royal College of Surgeons of England, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
–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.

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, 1 synthesis or guideline pooled it.

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  12. Predictive value of vertebral specificity of bone mineral density for cage subsidence among patients undergoing anterior cervical diskectomy and fusion: a retrospective 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 · 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

7 authors.

W M MilczynskaGuy's and St Thomas's NHS Foundation Trust (GSTT), UK.
A AhmadGuy's and St Thomas's NHS Foundation Trust (GSTT), UK.
A I AhmedGuy's and St Thomas's NHS Foundation Trust (GSTT), UK.
J R PanchmatiaGuy's and St Thomas's NHS Foundation Trust (GSTT), UK.
B FakouriGuy's and St Thomas's NHS Foundation Trust (GSTT), UK.
P LiantisGuy's and St Thomas's NHS Foundation Trust (GSTT), UK.
P PanteliadisGuy's and St Thomas's NHS Foundation Trust (GSTT), UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCage subsidence after anterior cervical discectomy and fusion (ACDF) surgery has been well documented with rates of up to 40%. Cages fill the void after cervical discectomy and promote fusion. These materials have different biomechanical profiles with differing rates of subsidence. This retrospective cohort study aimed to determine subsidence rates specifically associated with the novel Emerging Implant Technologies (EIT) titanium cage, identify risk factors associated with subsidence, and evaluate whether subsidence affects clinical outcomes.

methodsACDF with insertion of stand-alone EIT cage was performed in 39 patients (64 levels) between December 2016 and February 2019 with a median follow-up of 11 months. Patients were classified into two groups; subsidence and non-subsidence, and were compared in terms of the resultant clinical outcomes as well as presence of risk factors. Health-related quality of life (HRQOL) outcomes were assessed using Visual Analogue Scale (VAS) for neck and arm pain, EuroQol 5-Dimension 5-Level (EQ-5D-5L), EuroQol Visual Analogue Scale (EQ VAS) and Neck Disability Index (NDI) scores.

resultsCage subsidence (>3mm) was present in nine patients (23%), which corresponded to ten levels treated (16%). Development of subsidence was not associated with gender (

conclusionsThe EIT cage seems to be associated with lower rates of subsidence compared with other cage types. Cage subsidence was not associated with HRQOL outcomes or risk factors.

Indexed as

Spinal FusionTitaniumCervical VertebraeDiskectomyHumansQuality of LifeRetrospective StudiesTreatment OutcomeTitaniumAnterior cervical discectomy and fusionCervical cageSubsidenceTitanium cage

Identifiers

PMID35950498
PMCPMC10066656

What OpenQuestion holds

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Registered trials

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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.