Evidence map›Paper›PMID 31437580›Full record

ArticleOsteoarthritis and cartilage2019

Effects of treadmill running and limb immobilization on knee cartilage degeneration and locomotor joint kinematics in rats following knee meniscal transection.

L-C Tsai, E S Cooper, K M Hetzendorfer, G L Warren, Y-H Chang, N J Willett

Open access · bronzeAbstract read
In one paragraph

Article in Osteoarthritis and cartilage, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 28% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
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  6. Teaming up to overcome challenges toward translation of new therapeutics for osteoarthritis.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2024
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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

6 authors at 2 institutions in 1 country.

L-C TsaiGeorgia State University, Atlanta, GA, USA. Electronic address: ltsai@gsu.edu.
E S CooperEmory University, Atlanta, GA, USA; Georgia Institute of Technology, Atlanta, GA, USA.
K M HetzendorferGeorgia Institute of Technology, Atlanta, GA, USA.
G L WarrenGeorgia State University, Atlanta, GA, USA; Georgia Institute of Technology, Atlanta, GA, USA.
Y-H ChangGeorgia Institute of Technology, Atlanta, GA, USA.
N J WillettEmory University, Atlanta, GA, USA; Georgia Institute of Technology, Atlanta, GA, USA; Atlanta VA Medical Center, Atlanta, GA, USA.
Georgia Institute of Technology · USGeorgia State University · US

Funding

RRD VA I21 RX002372
6 · The paper itself

Abstract

objectiveThis study examined the effects of reduced and elevated weight bearing on post-traumatic osteoarthritis (PTOA) development, locomotor joint kinematics, and degree of voluntary activity in rats following medial meniscal transection (MMT).

designTwenty-one adult rats were subjected to MMT surgery of the left hindlimb and then assigned to one of three groups: (1) regular (i.e., no intervention), (2) hindlimb immobilization, or (3) treadmill running. Sham surgery was performed in four additional rats. Voluntary wheel run time/distance was measured, and 3D hindlimb kinematics were quantified during treadmill locomotion using biplanar radiography. Rats were euthanized 8 weeks after MMT or sham surgery, and the microstructure of the tibial cartilage and subchondral bone was quantified using contrast enhanced micro-CT.

resultsAll three MMT groups showed signs of PTOA (full-thickness lesions and/or increased cartilage volume) compared to the sham group, however the regular and treadmill-running groups had greater osteophyte formation than the immobilization group. For the immobilization group, increased volume was only observed in the anterior region of the cartilage. The treadmill-running group demonstrated a greater knee varus angle at mid-stance than the sham group, while the immobilization group demonstrated greater reduction in voluntary running than all the other groups at 2 weeks post-surgery.

conclusionsElevated weight-bearing via treadmill running at a slow/moderate speed did not accelerate PTOA in MMT rats when compared to regular weight-bearing. Reduced weight-bearing via immobilization may attenuate overall PTOA but still resulted in regional cartilage degeneration. Overall, there were minimal differences in hindlimb kinematics and voluntary running between MMT and sham rats.

Indexed as

ImmobilizationRunningAnimalsBiomechanical PhenomenaCartilage, ArticularDisease Models, AnimalLocomotionMaleMenisci, TibialOsteoarthritis, KneeOsteophyteRatsTibiaTibial Meniscus InjuriesWeight-BearingX-Ray MicrotomographyComputed tomographyKnee injuryOsteoarthritisRehabilitationX-ray motion analysis

Identifiers

PMID31437580
PMCPMC7576441
OpenAlexW2969214433

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.