Evidence map›Paper›PMID 35399075›Full record

SynthesisJournal of orthopaedic surgery and research2022

Influence of the geometric and material properties of lumbar endplate on lumbar interbody fusion failure: a systematic review.

Yihang Yu, Dale L Robinson, David C Ackland, Yi Yang, Peter Vee Sin Lee

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Journal of orthopaedic surgery and research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
6.0field-weighted citation impact, top 3% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
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  15. Loosening of stand-alone ALIF versus TLIF in degenerated lumbar human spines: an in vitro biomechanical 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

5 authors at 2 institutions in 1 country.

Yihang YuDepartment of Biomedical Engineering, University of Melbourne, Parkville, VIC, 3010, Australia.ORCID http://orcid.org/0000-0003-4031-8171
Dale L RobinsonDepartment of Biomedical Engineering, University of Melbourne, Parkville, VIC, 3010, Australia.
David C AcklandDepartment of Biomedical Engineering, University of Melbourne, Parkville, VIC, 3010, Australia.
Yi YangDepartment of Orthopaedics, Royal Melbourne Hospital, Parkville, VIC, 3052, Australia.
Peter Vee Sin LeeDepartment of Biomedical Engineering, University of Melbourne, Parkville, VIC, 3010, Australia. pvlee@unimelb.edu.au.
The University of Melbourne · AUThe Royal Melbourne Hospital · AU

Funding

Australian Research Council IC1801000024
6 · The paper itself

Abstract

backgroundLumbar interbody fusion (LIF) is an established surgical intervention for patients with leg and back pain secondary to disc herniation or degeneration. Interbody fusion involves removal of the herniated or degenerated disc and insertion of interbody devices with bone grafts into the remaining cavity. Extensive research has been conducted on operative complications such as a failure of fusion or non-union of the vertebral bodies. Multiple factors including surgical, implant, and patient factors influencing the rate of complications have been identified. Patient factors include age, sex, osteoporosis, and patient anatomy. Complications can also be influenced by the interbody cage design. The geometry of the bony endplates as well as their corresponding material properties guides the design of interbody cages, which vary considerably across patients with spinal disorders. However, studies on the effects of such variations on the rate of complications are limited. Therefore, this study aimed to perform a systematic review of lumbar endplate geometry and material property factors in LIF failure.

methodsSearch keywords included 'factor/cause for spinal fusion failure/cage subsidence/cage migration/non-union', 'lumbar', and 'interbody' in electronic databases PubMed and Scopus with no limits on year of publication.

resultsIn total, 1341 articles were reviewed, and 29 articles were deemed suitable for inclusion. Adverse events after LIF, such as cage subsidence, cage migration, and non-union, resulted in fusion failure; hence, risk factors for adverse events after LIF, notably those associated with lumbar endplate geometry and material properties, were also associated with fusion failure. Those risk factors were associated with shape, concavity, bone mineral density and stiffness of endplate, segmental disc angle, and intervertebral disc height.

conclusionsThis review demonstrated that decreased contact areas between the cage and endplate, thin and weak bony endplate as well as spinal diseases such as spondylolisthesis and osteoporosis are important causes of adverse events after LIF. These findings will facilitate the selection and design of LIF cages, including customised implants based on patient endplate properties.

Indexed as

OsteoporosisSpinal DiseasesSpinal FusionSpondylolisthesisHumansLumbar VertebraeLumbosacral RegionCage migrationCage subsidenceInterbody cageLumbar endplateLumbar interbody fusionNon-union

Identifiers

PMID35399075
PMCPMC8996478
OpenAlexW4223600850

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.