Evidence map›Paper›PMID 26979873›Full record

ArticleBMC musculoskeletal disorders2016

Healing of rotator cuff tendons using botulinum toxin A and immobilization in a rat model.

Mohit N Gilotra, Michael J Shorofsky, Jason A Stein, Anand M Murthi

Open access · goldAbstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

7 citing papers in PubMed, 15 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Tendon healing in the context of complex fractures.Clinical reviews in bone and mineral metabolism · 2018
    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

4 authors at 2 institutions in 1 country.

Mohit N GilotraDepartment of Orthopaedics, University of Maryland School of Medicine, Baltimore, MD, 21201, USA. mgilotra@umoa.umm.edu.
Michael J ShorofskyDepartment of Orthopaedics, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
Jason A SteinDepartment of Orthopaedics and Sports Medicine, MedStar Union Memorial Hospital, Baltimore, MD, 21218, USA.
Anand M MurthiDepartment of Orthopaedics and Sports Medicine, MedStar Union Memorial Hospital, Baltimore, MD, 21218, USA.
MedStar Union Memorial Hospital · USUniversity of Maryland, Baltimore · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe evaluated effects of botulinum toxin A (Botox) and cast immobilization on tendon healing in a rat model. Injection of Botox into rat supraspinatus was hypothesized to reduce muscle active force and improved healing.

methodsEighty-four supraspinatus tendons were surgically transected and repaired in 42 Sprague-Dawley rats (transosseous technique). After repair, supraspinatus muscle was injected with saline or Botox (3 or 6 U/kg). Half the shoulders were cast-immobilized for the entire postoperative period; half were allowed free cage activity. Histology was examined at 2, 4, 8, and 12 weeks. A healing zone cross-sectional area was measured, and biomechanical testing of repair strength and tendon viscoelastic properties was conducted at 4 and 12 weeks.

resultsBotox alone and cast immobilization alone exhibited increased ultimate load compared with controls (saline injection, no immobilization) at 4 weeks. No difference in ultimate load occurred between Botox-only and cast-only groups. At 12 weeks, the Botox (6 U/kg) plus cast immobilization group was significantly weakest (p < 0.05). A trend was shown toward decreased healing zone cross-sectional areas in casted groups.

conclusionsSupraspinatus Botox injection after rotator cuff repair might help protect the repair. However, cast immobilization plus Botox administration is harmful to rotator cuff healing in a rat tendon model.

Indexed as

Restraint, PhysicalAcetylcholine Release InhibitorsAnimalsBotulinum Toxins, Type ADisease Models, AnimalMaleRats, Sprague-DawleyRotator CuffTendon InjuriesTime FactorsWound HealingAcetylcholine Release InhibitorsBotulinum Toxins, Type ABotulinum toxin A (Botox)Cast immobilizationRat modelRotator cuff repairTendon healing

Identifiers

PMID26979873
PMCPMC4791755
OpenAlexW2299696343

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.