Evidence map›Paper›PMID 24139864›Full record

ArticleThe spine journal : official journal of the North American Spine Society2015

The effect of application site of spinal manipulative therapy (SMT) on spinal stiffness.

Tiffany L Edgecombe, Greg N Kawchuk, Cynthia R Long, Joel G Pickar

Abstract read
In one paragraph

Article in The spine journal : official journal of the North American Spine Society, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  10. Aberrant intervertebral motion in patients with treatment-resistant nonspecific low back pain: a retrospective cohort study and control comparison.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2018
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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

4 authors.

Tiffany L EdgecombeDepartment of Physical Therapy, University of Alberta, 8205 114 St, Corbett Hall, Edmonton, AB, Canada T6G 2G4.
Greg N KawchukDepartment of Physical Therapy, University of Alberta, 8205 114 St, Corbett Hall, Edmonton, AB, Canada T6G 2G4. Electronic address: Greg.Kawchuk@ualberta.ca.
Cynthia R LongPalmer Center for Chiropractic Research, 1000 N Brady St, Davenport, Iowa 52803, USA.
Joel G PickarPalmer Center for Chiropractic Research, 1000 N Brady St, Davenport, Iowa 52803, USA.

Funding

Vertebral Displacements & Ligament Strains during Simul. Spinal Mani./Gudavalli,RU19AT004137 · NCCIH · PALMER COLLEGE OF CHIROPRACTIC · PI PICKAR, JOEL G · 2007 to 2010
$4.5M
NCCIH NIH HHS U19 AT004137PHS HHS U19 AAT004137
6 · The paper itself

Abstract

background contextLike other factors that can influence treatment efficacy (eg, dosage, frequency, time of day), the site of treatment application is known to affect various physical interventions such as topical anesthetics and cardiopulmonary resuscitation. Like these examples, spinal manipulative therapy (SMT) is a physical intervention that may exhibit maximal benefit when directed to a specific site. Whereas numerous studies of SMT efficacy have produced mixed results, few studies have taken into account the site of SMT application. PURPOSE: To determine if the site of SMT application modulates the effect of SMT in an anesthetized feline model. STUDY

designSpinal manipulative therapy applied to specific anatomic locations randomized in a Latin square design with a no-SMT control. OUTCOME MEASURES: Physiologic measures (spinal stiffness).

methodsSimulated SMT was delivered by a validated mechanical apparatus to the intact lumbar spine of eight anesthetized felines at four unique sites: L6 spinous process, left L6 lamina, left L6 mammillary process, and L7 spinous process. To measure spinal stiffness, a separate indentation load was applied mechanically to the L6 spinous process before and after each SMT application. Spinal stiffness was calculated from the resulting force-displacement curve as the average stiffness (k) and terminal instantaneous stiffness (TIS).

resultsRelative to the no-SMT control, significant decreases in spinal stiffness followed the SMT when L6 spinous and L6 lamina were used as the contact site. Terminal instantaneous stiffness significantly decreased -0.48 N/mm (upper, lower 95% confidence interval [-0.86, -0.09]) with L6 spinous as the contact site and decreased -0.44 N/mm (-0.82, -0.05), with the L6 lamina as the contact site. k increased 0.44 N/mm (-0.01, 088), using L6 spinous as the contact site.

conclusionsDecreases in terminal spinal stiffness were observed after SMT delivered at some application sites but not the others. The results suggest that SMT contact site modulates SMT's effect on spinal stiffness in a feline model. Changes in spinal terminal instantaneous spinal stiffness were similar in magnitude and direction to those observed in symptomatic human subjects who report benefits after SMT.

Indexed as

AnimalsCatsLumbar VertebraeManipulation, SpinalTreatment OutcomeBiomechanicsChiropracticManual therapySpinal manipulative therapy

Identifiers

PMID24139864
PMCPMC3989461

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Registered trials

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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.