Evidence map›Paper›PMID 25077904›Full record

ArticleSpine2014

Specimen-specific nonlinear finite element modeling to predict vertebrae fracture loads after vertebroplasty.

Y Matsuura, H Giambini, Y Ogawa, Z Fang, A R Thoreson, M J Yaszemski, L Lu, K N An

Abstract readValidation Study
In one paragraph

Article in Spine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.2field-weighted citation impact, top 9% 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

28 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
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  4. Biomechanical effects of defect size and location on vertebral fracture.Journal of medical and biological engineering · 2025
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  19. Mechanical testing setups affect spine segment fracture outcomes.Journal of the mechanical behavior of biomedical materials · 2019
    Article
  20. Case-specific non-linear finite element models to predict failure behavior in two functional spinal units.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2018
    Article
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

8 authors at 3 institutions in 2 countries.

Y Matsuura*Biomechanics Laboratory, Division of Orthopedic Research, Mayo Clinic, Rochester, MN †Graduate School of Medicine, Chiba University, Chiba, Japan ‡Biomaterials and Tissue Engineering Laboratory, Division of Orthopedic Research, Mayo Clinic, Rochester, MN; and §Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, P. R. China.
H Giambini
Y Ogawa
Z Fang
A R Thoreson
M J Yaszemski
L Lu
K N An
Mayo Clinic · USMayo Clinic in Florida · USChiba University · JP

Funding

Mayo Clinic Center for Translational Science ActivitiesUL1TR000135 · NCATS · MAYO CLINIC ROCHESTER · PI KHOSLA, SUNDEEP · 2012 to 2015
$41.2M
Metastatic Spine Tumors: Minimally Invasive Fracture Risk Analysis and Treatment - MasterR01AR056212 · NIAMS · MAYO CLINIC ROCHESTER · PI Benjamin D Elder, Lichun Lu · 2008 to 2026
$6.2M
EXTRAMURAL RES FACIL IMPROVEMENT PROG: POLYCYSTIC KIDNEY DISEASE, RENAL STUDIES,C06RR018898 · NCRR · MAYO CLINIC · PI BURNETT, JOHN C · 2004 to 2004
$2.3M
NCATS NIH HHS UL1 TR000135NCRR NIH HHS C06 RR018898NCRR NIH HHS RR018898NIAMS NIH HHS R01 AR056212
6 · The paper itself

Abstract

STUDY

designVertebral fracture load and stiffness from a metastatic vertebral defect model were predicted using nonlinear finite element models (FEM) and validated experimentally.

objectiveThe study objective was to develop and validate an FEM-based tool for predicting polymer-augmented lytic vertebral fracture load and stiffness and the influence of metastatic filling materials. SUMMARY OF BACKGROUND DATA: Percutaneous vertebroplasty has the potential to reduce vertebral fracture risk affected with lytic metastases by providing mechanical stabilization. However, it has been shown that the mismatch in mechanical properties between poly(methyl-methacrylate) (PMMA) and bone induces secondary fractures and intervertebral disc degeneration. A biodegradable copolymer, poly(propylene fumarate-co-caprolactone) (P(PF-co-CL)), has been shown to possess the appropriate mechanical properties for bone defect repair.

methodsSimulated metastatic lytic defects were created in 40 cadaveric vertebral bodies, which were randomized into 4 groups: intact vertebral body (intact), simulated defect without treatment (negative), defect treated with P(PF-co-CL) (copolymer), and defect treated with PMMA (PMMA). Spines were imaged with quantitative computed tomography (QCT), and QCT/FEM-subject-specific, nonlinear models were created. Predicted fracture loads and stiffness were identified and compared with experimentally measured values using Pearson correlation analysis and paired t test.

resultsThere was no significant difference between the measured and predicted fracture loads and stiffness for each group. Predicted fracture loads were larger for PMMA augmentation (3960 N [1371 N]) than that for the copolymer, negative and intact groups (3484 N [1497 N], 3237 N [1744 N], and 1747 N [702 N]). A similar trend was observed in the predicted stiffness. Moreover, predicted and experimental fracture loads were strongly correlated (R=0.78), whereas stiffness showed moderate correlation (R=0.39).

conclusionQCT/FEM was successful for predicting fracture loads of metastatic, polymer-augmented vertebral bodies. Overall, we have demonstrated that QCT/FEM may be a useful tool for predicting in situ vertebral fracture load resulting from vertebroplasty. LEVEL OF EVIDENCE: N/A.

Indexed as

Absorbable ImplantsAgedAged, 80 and overBiocompatible MaterialsBiomechanical PhenomenaBone CementsCadaverElastic ModulusFinite Element AnalysisForecastingHumansMiddle AgedModels, TheoreticalNonlinear DynamicsPolyestersPolymethyl MethacrylateBiocompatible MaterialsBone CementsPolyestersPolymethyl Methacrylatepoly(propylene fumarate-co-caprolactone)

Identifiers

PMID25077904
PMCPMC4191996
OpenAlexW2049470231

What OpenQuestion holds

Textmetadata
LicenceTDM
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.