Evidence map›Paper›PMID 15021153›Full record

ArticleClinical orthopaedics and related research2004

Myofibroblast numbers are elevated in human elbow capsules after trauma.

Kevin A Hildebrand, Mei Zhang, Wistara van Snellenberg, Graham J W King, David A Hart

Abstract readComparative Study
In one paragraph

Article in Clinical orthopaedics and related research, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.9field-weighted citation impact, top 10% 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

33 citing papers in PubMed, 107 citations in OpenAlex.

  1. Article
  2. Article
  3. Capsule release surgery temporarily reduces contracture in a rat elbow model of arthrofibrosis.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025
    Article
  4. Age-related changes in rat joint capsule.Journal of physical therapy science · 2023
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. The posttraumatic stiff elbow: an update.Current reviews in musculoskeletal medicine · 2016
    Review
  17. Article
  18. Article
  19. Review
  20. The use of dynamic orthoses in the treatment of the stiff elbow.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2014
    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 2 institutions in 1 country.

Kevin A HildebrandMcCaig Centre for Joint Injury and Arthritis Research, University of Calgary, Canada. hildebrk@ucalgary.ca
Mei Zhang
Wistara van Snellenberg
Graham J W King
David A Hart
University of Calgary · CAArthritis Research Centre of Canada · CA

Funding

CIHR 64326
6 · The paper itself

Abstract

Elbow contractures, a frequent problem after injury, can be treated by excision of the joint capsule. However, the underlying changes in the joint capsule are poorly understood. Based on skin healing work, we examined the hypotheses that myofibroblast numbers and expression of a myofibroblast marker alpha-smooth muscle actin, are elevated in patients with posttraumatic joint contractures. Anterior capsules were obtained from six patients who had operative release of posttraumatic contractures greater than 5 months after injury and six elbows of organ donors free of contractures. Immunohistochemical studies revealed that myofibroblast numbers and percentage of total cells that were myofibroblasts were significantly elevated in the joint capsules from patients with contractures (326 +/- 61 cells per field, 36% +/- 4% total cells) when compared with similar tissues of the organ donors (69 +/- 41 cells per field, 9% +/- 4% total cells). Western blot analysis showed that protein levels of alpha-smooth muscle actin were significantly elevated in patients with posttraumatic joint contractures. However, analysis with reverse transcription-polymerase chain reaction determined that messenger ribonucleic acid levels for smooth muscle actin normalized to the housekeeping gene glyceraldehyde-3-phosphate dehydrogenase were not significantly different between the two groups. An association between increased numbers of myofibroblasts and posttraumatic joint contractures has been established in the human elbow capsule. Additional work is required to determine whether myofibroblast regulators may be targets for adjuvant therapies of posttraumatic contractures.

Indexed as

Elbow InjuriesAdultBiopsy, NeedleBlotting, WesternCase-Control StudiesCell MovementContractureCulture TechniquesFemaleFibroblastsHumansImmunohistochemistryJoint CapsuleMaleMiddle AgedMuscle, Smooth

Identifiers

PMID15021153
PMCPMC2950171
OpenAlexW2068049280

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.