Evidence map›Paper›PMID 25463499›Full record

ArticleActa biomaterialia2015

High-strength, surface-porous polyether-ether-ketone for load-bearing orthopedic implants.

Nathan T Evans, F Brennan Torstrick, Christopher S D Lee, Kenneth M Dupont, David L Safranski, W Allen Chang, Annie E Macedo, Angela S P Lin, Jennifer M Boothby, Daniel C Whittingslow and 3 more

Open access · greenAbstract read
In one paragraph

Article in Acta biomaterialia, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
8.2field-weighted citation impact, top 2% 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

51 citing papers in PubMed, 206 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

13 authors at 3 institutions in 1 country.

Nathan T EvansSchool of Materials Science and Engineering, 771 Ferst Drive, J. Erskine Love Building, Georgia Institute of Technology, Atlanta, GA 30332, USA. Electronic address: nevans3@gatech.edu.
F Brennan TorstrickGeorge W. Woodruff School of Mechanical Engineering, 801 Ferst Drive, Georgia Institute of Technology, Atlanta, GA 30332, USA; Parker H. Petit Institute for Bioengineering and Bioscience, 315 Ferst Drive, Georgia Institute of Technology, Atlanta, GA 30332, USA.
Christopher S D LeeVertera, Inc., 311 Ferst Drive NW Suite L1328, Atlanta, GA 30332, USA.
Kenneth M DupontMedShape, Inc., 1575 Northside Drive, NW, Suite 440, Atlanta, GA 30318, USA.
David L SafranskiMedShape, Inc., 1575 Northside Drive, NW, Suite 440, Atlanta, GA 30318, USA.
W Allen ChangVertera, Inc., 311 Ferst Drive NW Suite L1328, Atlanta, GA 30332, USA.
Annie E MacedoWallace H. Coulter Department of Biomedical Engineering, 313 Ferst Drive, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA.
Angela S P LinGeorge W. Woodruff School of Mechanical Engineering, 801 Ferst Drive, Georgia Institute of Technology, Atlanta, GA 30332, USA; Parker H. Petit Institute for Bioengineering and Bioscience, 315 Ferst Drive, Georgia Institute of Technology, Atlanta, GA 30332, USA.
Jennifer M BoothbyWallace H. Coulter Department of Biomedical Engineering, 313 Ferst Drive, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA.
Daniel C WhittingslowWallace H. Coulter Department of Biomedical Engineering, 313 Ferst Drive, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA.
Robert A CarsonGeorge W. Woodruff School of Mechanical Engineering, 801 Ferst Drive, Georgia Institute of Technology, Atlanta, GA 30332, USA.
Robert E GuldbergGeorge W. Woodruff School of Mechanical Engineering, 801 Ferst Drive, Georgia Institute of Technology, Atlanta, GA 30332, USA; Parker H. Petit Institute for Bioengineering and Bioscience, 315 Ferst Drive, Georgia Institute of Technology, Atlanta, GA 30332, USA.
Ken GallSchool of Materials Science and Engineering, 771 Ferst Drive, J. Erskine Love Building, Georgia Institute of Technology, Atlanta, GA 30332, USA; George W. Woodruff School of Mechanical Engineering, 801 Ferst Drive, Georgia Institute of Technology, Atlanta, GA 30332, USA; Parker H. Petit Institute for Bioengineering and Bioscience, 315 Ferst Drive, Georgia Institute of Technology, Atlanta, GA 30332, USA.
Georgia Institute of Technology · USMedShape (United States) · USThe Wallace H. Coulter Department of Biomedical Engineering · US

Funding

Atlanta Clinical and Translational Science Institute (ACTSI) RenewalUL1TR000454 · NCATS · EMORY UNIVERSITY · PI STEPHENS, DAVID S · 2012 to 2016
$25.8M
MEDICAL SCIENTIST TRAINING PROGRAMT32GM008169 · NIGMS · EMORY UNIVERSITY · PI GROSS, ROBERT E · 1987 to 2021
$20.3M
NCATS NIH HHS UL1 TR000454NCATS NIH HHS UL1TR000454NIGMS NIH HHS T32 GM008169
6 · The paper itself

Abstract

Despite its widespread clinical use in load-bearing orthopedic implants, polyether-ether-ketone (PEEK) is often associated with poor osseointegration. In this study, a surface-porous PEEK material (PEEK-SP) was created using a melt extrusion technique. The porous layer was 399.6±63.3 μm thick and possessed a mean pore size of 279.9±31.6 μm, strut spacing of 186.8±55.5 μm, porosity of 67.3±3.1% and interconnectivity of 99.9±0.1%. Monotonic tensile tests showed that PEEK-SP preserved 73.9% of the strength (71.06±2.17 MPa) and 73.4% of the elastic modulus (2.45±0.31 GPa) of as-received, injection-molded PEEK. PEEK-SP further demonstrated a fatigue strength of 60.0 MPa at one million cycles, preserving 73.4% of the fatigue resistance of injection-molded PEEK. Interfacial shear testing showed the pore layer shear strength to be 23.96±2.26 MPa. An osseointegration model in the rat revealed substantial bone formation within the pore layer at 6 and 12 weeks via microcomputed tomography and histological evaluation. Ingrown bone was more closely apposed to the pore wall and fibrous tissue growth was reduced in PEEK-SP when compared to non-porous PEEK controls. These results indicate that PEEK-SP could provide improved osseointegration while maintaining the structural integrity necessary for load-bearing orthopedic applications.

Indexed as

Bone SubstitutesFemurKetonesPolyethylene GlycolsAnimalsBenzophenonesElastic ModulusFemaleOrthopedic ProceduresOsseointegrationPolymersRatsRats, Sprague-DawleyWeight-BearingBenzophenonesBone SubstitutesKetonespolyetheretherketonePolyethylene GlycolsPolymersFatigueOrthopedic implantPolyether-ether-ketone (PEEK)Surface porous

Identifiers

PMID25463499
PMCPMC4294703
OpenAlexW2018674726

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.