Evidence map›Paper›PMID 33205444›Full record

ArticleJournal of anatomy2021

Degeneration alters structure-function relationships at multiple length-scales and across interfaces in human intervertebral discs.

Beth G Ashinsky, Sarah E Gullbrand, Chao Wang, Edward D Bonnevie, Lin Han, Robert L Mauck, Harvey E Smith

Open access · bronzeAbstract read
In one paragraph

Article in Journal of anatomy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

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  17. Level dependent alterations in human facet cartilage mechanics and bone morphometry with spine degeneration.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2023
    Article
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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 at 2 institutions in 1 country.

Beth G AshinskyMcKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA.
Sarah E GullbrandMcKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA.
Chao WangDrexel University School of Biomedical Engineering, Science and Health Systems, Philadelphia, PA, USA.
Edward D BonnevieMcKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA.
Lin HanDrexel University School of Biomedical Engineering, Science and Health Systems, Philadelphia, PA, USA.
Robert L MauckMcKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA.
Harvey E SmithMcKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA.ORCID 0000-0003-0488-2541
Philadelphia VA Medical Center · USDrexel University · US

Funding

Overall: Resource-based Center for Musculoskeletal Disorders Research (Overall Application)P30AR069619 · NIAMS · UNIVERSITY OF PENNSYLVANIA · PI LOUIS J SOSLOWSKY · 2016 to 2026
$9.1M
Multiscale and Multimodal Structure-Function Analysis of Intervertebral Interfaces During Degeneration and RegenerationF30AG060670 · NIA · DREXEL UNIVERSITY · PI ASHINSKY, BETH GAYLE · 2018 to 2021
$193k
Altered Mechanical Signaling in the Annulus Fibrosus in Intervertebral Disc DegenerationF32AR072478 · NIAMS · UNIVERSITY OF PENNSYLVANIA · PI BONNEVIE, EDWARD D · 2018 to 2019
$120k
The Role of Disc Nutrition in the Etiology and Clinical Treatment of Disc DegenerationIK2RX003118 · VA · PHILADELPHIA VA MEDICAL CENTER · PI GULLBRAND, SARAH E · 2020 to 2024
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NIAMS NIH HHS F32 AR072478NIAMS NIH HHS P30 AR069619NIA NIH HHS F30 AG060670RRD VA I01 RX001321RRD VA I01 RX002274RRD VA I21 RX003289RRD VA IK1 RX002445RRD VA IK2 RX001476RRD VA IK2 RX003118RRD VA IK6 RX003416
6 · The paper itself

Abstract

Intervertebral disc (IVD) degeneration and associated back pain place a significant burden on the population. IVD degeneration is a progressive cascade of cellular, compositional, and structural changes, which results in a loss of disc height, disorganization of extracellular matrix architecture, tears in the annulus fibrosus which may involve herniation of the nucleus pulposus, and remodeling of the bony and cartilaginous endplates (CEP). These changes to the IVD often occur concomitantly, across the entire motion segment from the disc subcomponents to the CEP and vertebral bone, making it difficult to determine the causal initiating factor of degeneration. Furthermore, assessments of the subcomponents of the IVD have been largely qualitative, with most studies focusing on a single attribute, rather than multiple adjacent IVD substructures. The objective of this study was to perform a multiscale and multimodal analysis of human lumbar motion segments across various length scales and degrees of degeneration. We performed multiple assays on every sample and identified several correlations between structural and functional measurements of disc subcomponents. Our results demonstrate that with increasing Pfirrmann grade there is a reduction in disc height and nucleus pulposus T2 relaxation time, in addition to alterations in motion segment macromechanical function, disc matrix composition and cellular morphology. At the cartilage endplate-vertebral bone interface, substantial remodeling was observed coinciding with alterations in micromechanical properties. Finally, we report significant relationships between vertebral bone and nucleus pulposus metrics, as well as between micromechanical properties of the endplate and whole motion segment biomechanical parameters, indicating the importance of studying IVD degeneration as a whole organ.

Indexed as

AgedAged, 80 and overFemaleHumansIntervertebral DiscIntervertebral Disc DegenerationLumbar VertebraeMaleMiddle AgedX-Ray Microtomographyatomic force microscopyhistologyintervertebral disc degenerationmagnetic resonance imagingmicrocomputed tomographyPfirrmann grade

Identifiers

PMID33205444
PMCPMC7930769
OpenAlexW3102091629

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.