Evidence map›Paper›PMID 27525982›Full record

ArticleJournal of experimental orthopaedics2016

Functional outcome measures in a surgical model of hip osteoarthritis in dogs.

Dianne Little, Stephen Johnson, Jonathan Hash, Steven A Olson, Bradley T Estes, Franklin T Moutos, B Duncan X Lascelles, Farshid Guilak

Open access · goldAbstract read
In one paragraph

Article in Journal of experimental orthopaedics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
4.0field-weighted citation impact, top 7% 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

13 citing papers in PubMed, 27 citations in OpenAlex.

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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

8 authors at 4 institutions in 1 country.

Dianne LittleDepartment of Orthopaedic Surgery, Duke University Medical Center, 375 MSRB 1, BOX 3093 DUMC, Durham, NC, 27710, USA. dianne.little@duke.edu.
Stephen JohnsonDepartment of Orthopaedic Surgery, Duke University Medical Center, 375 MSRB 1, BOX 3093 DUMC, Durham, NC, 27710, USA.
Jonathan HashComparative Pain Research Laboratory and Comparative Medicine Institute, Department of Clinical Sciences, North Carolina State University College of Veterinary Medicine, Raleigh, NC, USA.
Steven A OlsonDepartment of Orthopaedic Surgery, Duke University Medical Center, 375 MSRB 1, BOX 3093 DUMC, Durham, NC, 27710, USA.
Bradley T EstesDepartment of Orthopaedic Surgery, Duke University Medical Center, 375 MSRB 1, BOX 3093 DUMC, Durham, NC, 27710, USA.
Franklin T MoutosDepartment of Orthopaedic Surgery, Duke University Medical Center, 375 MSRB 1, BOX 3093 DUMC, Durham, NC, 27710, USA.
B Duncan X LascellesComparative Pain Research Laboratory and Comparative Medicine Institute, Department of Clinical Sciences, North Carolina State University College of Veterinary Medicine, Raleigh, NC, USA.
Farshid GuilakCytex Therapeutics Inc, Durham, NC, 27705, USA.
Duke Medical Center · USCytex Therapeutics (United States) · USNorth Carolina State University · USPurdue University West Lafayette · US

Funding

Functional Tissue Engineering for Cartilage RepairR42AR055042 · NIAMS · CYTEX THERAPEUTICS INC. · PI GUILAK, FARSHID · 2013 to 2014
$1.3M
Aligned Tendon or Ligament Derived Matrix Nanoscaffolds for Rotator Cuff RepairK08AR059784 · NIAMS · DUKE UNIVERSITY · PI LITTLE, DIANNE · 2011 to 2015
$491k
Functional Tissue Engineering for Cartilage RepairR41AR055042 · NIAMS · CYTEX THERAPEUTICS INC. · PI GUILAK, FARSHID · 2009 to 2009
$262k
NIAMS NIH HHS K08 AR059784NIAMS NIH HHS R41 AR055042NIAMS NIH HHS R42 AR055042
6 · The paper itself

Abstract

backgroundThe hip is one of the most common sites of osteoarthritis in the body, second only to the knee in prevalence. However, current animal models of hip osteoarthritis have not been assessed using many of the functional outcome measures used in orthopaedics, a characteristic that could increase their utility in the evaluation of therapeutic interventions. The canine hip shares similarities with the human hip, and functional outcome measures are well documented in veterinary medicine, providing a baseline for pre-clinical evaluation of therapeutic strategies for the treatment of hip osteoarthritis. The purpose of this study was to evaluate a surgical model of hip osteoarthritis in a large laboratory animal model and to evaluate functional and end-point outcome measures.

methodsSeven dogs were subjected to partial surgical debridement of cartilage from one femoral head. Pre- and postoperative pain and functional scores, gait analysis, radiographs, accelerometry, goniometry and limb circumference were evaluated through a 20-week recovery period, followed by histological evaluation of cartilage and synovium.

resultsAnimals developed histological and radiographic evidence of osteoarthritis, which was correlated with measurable functional impairment. For example, Mankin scores in operated limbs were positively correlated to radiographic scores but negatively correlated to range of motion, limb circumference and 20-week peak vertical force.

conclusionsThis study demonstrates that multiple relevant functional outcome measures can be used successfully in a large laboratory animal model of hip osteoarthritis. These measures could be used to evaluate relative efficacy of therapeutic interventions relevant to human clinical care.

Indexed as

Articular cartilage repairCollagenInflammationPainProteoglycanSynoviumTissue engineering

Identifiers

PMID27525982
PMCPMC4987758
OpenAlexW2517792044

What OpenQuestion holds

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LicenceCC BY
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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.