Evidence map›Paper›PMID 32458460›Full record

ArticleJournal of orthopaedic research : official publication of the Orthopaedic Research Society2020

Sensitivity of total knee replacement wear to variability in motion and load input: A parametric finite element analysis study.

Steven P Mell, Markus A Wimmer, Hannah J Lundberg

Open access · greenAbstract read
In one paragraph

Article in Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.8field-weighted citation impact, top 27% 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

5 citing papers in PubMed, 12 citations in OpenAlex.

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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

3 authors at 1 institution in 1 country.

Steven P MellDepartment of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois.ORCID 0000-0003-1109-9336
Markus A WimmerDepartment of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois.ORCID 0000-0001-6169-3873
Hannah J LundbergDepartment of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois.ORCID 0000-0002-6981-8690
Rush University Medical Center · US

Funding

Wear Testing for Enhanced Prediction of TKR Clinical PerformanceR01AR059843 · NIAMS · RUSH UNIVERSITY MEDICAL CENTER · PI WIMMER, MARKUS ANTON · 2011 to 2014
$1.4M
NIAMS NIH HHS R01 AR059843NIH HHS R01 AR059843
6 · The paper itself

Abstract

Polyethylene wear remains a contributor to long term failure in total knee replacements (TKRs). Advances in materials have improved polyethylene wear rates, therefore further wear reductions require a better understanding of patient-specific factors that lead to wear. Variability of gait within patients is considerable and could lead to significant variability in wear rates that cannot be predicted by standard testing methods. An in-silico study was performed to investigate the influence of gait variability on TKR polyethylene wear. Nine characteristic peaks within the load and motion profiles used for TKR wear testing were varied 75% to 125% from baseline (ISO-14243-3:2014) to generate 310 unique waveforms. Wear was calculated for 1-million cycles using a finite element TKR wear model. From the results, a surrogate model was developed using multiple linear regression, and used to predict how wear changes due to dispersion of motion and force peaks within a) ±5%, the maximum allowable input tolerance of ISO, and b) ±25%, more reflective of patient gait inter-variability. The range of wear within the ±5% tolerance was 0.65 mm

Indexed as

Arthroplasty, Replacement, KneeGaitKnee ProsthesisBiomechanical PhenomenaComputer SimulationFinite Element AnalysisHumansKnee JointPolyethylenePolyethylenecomputational analysisimplant wearkinematics and gaittotal knee replacements

Identifiers

PMID32458460
PMCPMC9595431
OpenAlexW3029469048

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.