Evidence map›Paper›PMID 33102889›Full record

ArticleJournal of spine surgery (Hong Kong)2020

Two-year results of a double-blind multicenter randomized controlled non-inferiority trial of polyetheretherketone (PEEK) versus silicon nitride spinal fusion cages in patients with symptomatic degenerative lumbar disc disorders.

Bryan J McEntire, Greg Maslin, B Sonny Bal

Open access · diamondAbstract read
In one paragraph

Article in Journal of spine surgery (Hong Kong), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

9 citing papers in PubMed, 18 citations in OpenAlex.

  1. 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
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  8. Response to letter by Kersten regarding publication by McEntireJournal of spine surgery (Hong Kong) · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Bryan J McEntireSINTX Technologies, Inc., Salt Lake City, UT, USA.
Greg MaslinBiomedical Statistical Consulting, Wynnewood, PA, USA.
B Sonny BalSINTX Technologies, Inc., Salt Lake City, UT, USA.
SINTX Technologies (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDuring lumbar spinal fusion, spacer cages are implanted to provide vertebral stability, restore sagittal alignment, and maintain disc and foraminal height. Polyetheretherketone (PEEK) is commonly used by most spine surgeons. Silicon nitride (Si

methodsA non-inferiority multicenter 100-patient study was designed where both the observer and patient were blinded. Single- or double-level transforaminal lumbar interbody fusion with pedicle screw fixation using an oblique PEEK or Si

resultsAfter exclusions for protocol violations and canceled surgeries, 92 patients were randomized (i.e., 48 for PEEK and 44 for Si

conclusionsThis study demonstrated that the use of either PEEK or Si

Indexed as

degenerative disc diseaselumbar spinal fusionPolyetheretherketone (PEEK)randomized controlled trialsilicon nitride (Si3N4)

Identifiers

PMID33102889
PMCPMC7548827
OpenAlexW3083712324

What OpenQuestion holds

Textmetadata
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.