Evidence map›Paper›PMID 24426893›Full record

ArticleHand (New York, N.Y.)2013

The effect of time after shear injury on the subsynovial connective tissue and median nerve within the rabbit carpal tunnel.

Matthias Vanhees, Takako Chikenji, Andrew R Thoreson, Chunfeng Zhao, James D Schmelzer, Philip A Low, Kai-Nan An, Peter C Amadio

Open access · greenAbstract read
In one paragraph

Article in Hand (New York, N.Y.), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.5field-weighted citation impact, top 30% 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

6 citing papers in PubMed, 8 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. 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 2 institutions in 1 country.

Matthias VanheesBiomechanics Laboratory, Department of Orthopedic Surgery, Mayo Clinic, 200 1st St. SW, Rochester, MN 55905 USA.
Takako ChikenjiBiomechanics Laboratory, Department of Orthopedic Surgery, Mayo Clinic, 200 1st St. SW, Rochester, MN 55905 USA.
Andrew R ThoresonBiomechanics Laboratory, Department of Orthopedic Surgery, Mayo Clinic, 200 1st St. SW, Rochester, MN 55905 USA.
Chunfeng ZhaoBiomechanics Laboratory, Department of Orthopedic Surgery, Mayo Clinic, 200 1st St. SW, Rochester, MN 55905 USA.
James D SchmelzerDepartment of Neurology, Mayo Clinic, Rochester, MN USA.
Philip A LowDepartment of Neurology, Mayo Clinic, Rochester, MN USA.
Kai-Nan AnBiomechanics Laboratory, Department of Orthopedic Surgery, Mayo Clinic, 200 1st St. SW, Rochester, MN 55905 USA.
Peter C AmadioBiomechanics Laboratory, Department of Orthopedic Surgery, Mayo Clinic, 200 1st St. SW, Rochester, MN 55905 USA.
Mayo Clinic · USWinnMed · US

Funding

Subsynovial Connective Tissue and Carpal Tunnel SyndromeR01AR049823 · NIAMS · MAYO CLINIC ROCHESTER · PI AMADIO, PETER C. · 2003 to 2011
$3.0M
NIAMS NIH HHS R01 AR049823
6 · The paper itself

Abstract

backgroundThe most prominent nonneurological finding in the common compression neuropathy carpal tunnel syndrome (CTS) is fibrosis of the subsynovial connective tissue (SSCT). Recently, a rabbit model of CTS has been developed, based on the hypothesis that SSCT injury and subsequent fibrosis cause nerve compression. The purpose of this study was to evaluate the effects in this model at earlier and later time points than have heretofore been reported.

methodsSixty rabbits were operated on and observed at two different time periods: 6 and 24 weeks. Nerve electrophysiology (EP), SSCT histology, and SSCT mechanical properties were assessed.

resultsThere was no significant difference in median motor nerve amplitude or latency at either time point. The total cell density in the SSCT was significantly higher at 6 and 24 weeks compared to controls. The mean size of the collagen fibrils in the SSCT was higher 6 and 24 weeks after surgery compared to controls. Both the ultimate load and the total energy absorption of the SSCT were significantly higher at 6 and 24 weeks compared to controls.

conclusionsIn this model, there were signs of SSCT fibrosis and histology changes at 6 weeks, which persist after 24 weeks. Thus, this model leads to sustained SSCT fibrosis, which is one characteristic of human CTS. However, no significant EP changes were found at these two time points, which is in contrast to the findings reported previously for this model at 12 weeks. The significance of the differences in EP findings will be the subject of future studies.

Indexed as

Carpal tunnel syndromeRabbit animal modelShear injurySubsynovial connective tissue

Identifiers

PMID24426893
PMCPMC3574493
OpenAlexW2035454157

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.