Evidence map›Paper›PMID 23849733›Full record

Trial reportThe Journal of hand surgery2013

The effect of surface modification on gliding ability of decellularized flexor tendon in a canine model in vitro.

Yasuhiro Ozasa, Peter C Amadio, Andrew R Thoreson, Kai-Nan An, Chunfeng Zhao

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in The Journal of hand surgery, 2013. 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
1.3field-weighted citation impact, top 23% 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, 14 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. 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

5 authors at 1 institution in 1 country.

Yasuhiro OzasaBiomechanics and Tendon and Soft Tissue Laboratories, Division of Orthopedic Research, Mayo Clinic, Rochester, MN 55905, USA.
Peter C Amadio
Andrew R Thoreson
Kai-Nan An
Chunfeng Zhao
Mayo Clinic · US

Funding

Engineering Tendon Grafts for Better OutcomesR01AR057745 · NIAMS · MAYO CLINIC ROCHESTER · PI ZHAO, CHUNFENG · 2010 to 2018
$3.5M
NIAMS NIH HHS AR57745NIAMS NIH HHS R01 AR057745
6 · The paper itself

Abstract

purposeTo investigate the gliding ability and mechanical properties of decellularized intrasynovial tendons with and without surface modification designed to reduce gliding resistance.

methodsWe randomly assigned 33 canine flexor digitorum profundus tendons to 1 of 3 groups: untreated fresh tendons, to serve as a control; tendons decellularized with trypsin and Triton X-100; and tendons decellularized as in group 2 with surface modification using carbodiimide-derivatized hyaluronic acid and gelatin (cd-HA-gelatin). Tendons were subjected to cyclic friction testing for 1,000 cycles with subsequent tensile stiffness testing. We qualitatively evaluated the surface roughness after 1,000 cycles using scanning electron microscopy.

resultsThe gliding resistance of the decellularized group was significantly higher than that of both the control and cd-HA-gelatin tendons (0.20, 0.09, and 0.11 N after the first cycle; and 0.41, 0.09, and 0.14 N after 1,000 cycles, respectively). Gliding resistance between the control and cd-HA-gelatin groups was not significantly different. The Young modulus was not significantly different between groups. The surfaces of the control and cd-HA-gelatin-treated tendons appeared smooth after 1,000 cycles, whereas those of the decellularized tendons appeared roughened under scanning electron microscopy observation.

conclusionsDecellularization with trypsin and Triton X-100 did not change tendon stiffness. However, although this treatment was effective in removing cells, it adversely altered the tendon surface in both appearance and gliding resistance. Surface modification with cd-HA-gelatin improved the tendon surface smoothness and significantly decreased the gliding resistance. CLINICAL RELEVANCE: The combination of decellularization and surface modification may improve the function of tendon allografts when used clinically.

Indexed as

AllograftsAnimalsBiomechanical PhenomenaDogsFrictionMicroscopy, Electron, ScanningModels, AnimalOctoxynolSurface-Active AgentsSurface PropertiesTendonsTrypsinOctoxynolSurface-Active AgentsTrypsinAllograftdecellularizationflexor tendongliding resistance

Identifiers

PMID23849733
PMCPMC3782077
OpenAlexW1971533942

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.