OsEAN

9th Open Forum - Conference
"Osteopathic Models:
between tradition and evidence-based practice"
7 & 8 November 2024

Virtual International Student Day
Osteopathic Identities in a changing world:
Identity
7th February 2025


European Journal of Pain

DOI: 10.1002/ejp.614

Abstract

Background

This study aimed to investigate whether the addition of visceral manipulation, to a standard physiotherapy algorithm, improved outcomes in patients with low back pain.

Methods

Sixty-four patients with low back pain who presented for treatment at a private physiotherapy clinic were randomized to one of two groups: standard physiotherapy plus visceral manipulation (n = 32) or standard physiotherapy plus placebo visceral manipulation (n  = 32). The primary outcome was pain (measured with the 0–10 Numerical Pain Rating Scale) at 6 weeks. Secondary outcomes were pain at 2 and 52 weeks, disability (measured with the Roland-Morris Disability Questionnaire) at 2, 6 and 52 weeks and function (measured with the Patient-Specific Functional Scale) at 2, 6 and 52 weeks. This trial was registered with the Australia and New Zealand Clinical Trials Registry (ACTRN12611000757910).

Results

The addition of visceral manipulation did not affect the primary outcome of pain at 6 weeks (−0.12, 95% CI = −1.45 to 1.21). There were no significant between-group differences for the secondary outcomes of pain at 2 weeks or disability and function at 2, 6 or 52 weeks. The group receiving addition of visceral manipulation had less pain than the placebo group at 52 weeks (mean 1.57, 95% CI = 0.32 to 2.82). Participants were adequately blinded to group status and there were no adverse effects reported in either group.

Conclusions

Our study suggests that visceral manipulation in addition to standard care is not effective in changing short-term outcomes but may produce clinically worthwhile improvements in pain at 1 year.

Full text available here.

Journal of manipulative and physiological therapeutics

doi: http://dx.doi.org/10.1016/j.jmpt.2014.10.014

Objective

This crossover study aimed to determine whether a single high-velocity, low-amplitude manipulation of the cervical spine would affect postural sway in adults with nonspecific neck pain.

Methods

Ten participants received, in random order, 7 days apart, a high-velocity, low-amplitude manipulation applied to a dysfunctional spinal segment and a passive head-movement control. Four parameters of postural sway were measured before, immediately after, and at 5 and 10 minutes after each procedure.

Results

Results showed no differences between interventions in change in any of the parameters. When changes before and immediately after each procedure were analyzed separately, only the control showed a significant change in the length of center of pressure path (an increase from median, 118 mm; interquartlie range, 93-137 mm to an increase to 132 mm; 112-147; P = .02).

Conclusion

This study failed to show evidence that single manipulation of the cervical spine influenced postural sway. Given the ability of the postural control system to reweight the hierarchy of sensory information to compensate for inadequacies in any 1 component, it is possible that any improvements in the mechanisms controlling postural sway elicited by the manipulative intervention may have been concealed.


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The Journal of the American Osteopathic Association

doi: 10.7556/jaoa.2014.179

Abstract

Context: The first 2 years of osteopathic medical school involve training in osteopathic principles and practice, including understanding the tenets of osteopathic medicine and developing palpatory skills for clinical application. Although this training emphasizes the link between somatic dysfunction and physiologic function, it does not include the opportunity for students to quantitatively assess the physiologic effect of osteopathic manipulative treatment (OMT) using physiologic measurements.

Objective: To evaluate an approach for integrated OMT training coupled with physiologic measurements of relevant parameters, whereby first-year osteopathic medical students assess the quantitative, real-time changes in specific physiologic signals during instruction.

Methods: During mandatory musculoskeletal and cardiovascular demonstration laboratories at a single osteopathic medical school, students were divided into small groups and performed OMT on each other while recording real-time measurements of physiologic functions such as maximum clench force, time to fatigue for the forearm flexor muscles, heart rate, and peripheral vascular flow. After data were collected, students analyzed pre- and post-OMT measurements and discussed underlying physiologic principles in a large group format. At the end of the sessions, students completed a brief survey on the usefulness of the integrated laboratories.

Results: Overall, 13 of 28 student groups (46.4%) measured a pre- to post-OMT increase in maximum clench force, and 16 (57.1%) observed an increase in time to fatigue for the forearm flexor muscles. Twenty-three of 27 student groups (85.2%) observed a reduction in heart rate and 19 (70.4%) measured an increase in peripheral vascular flow after OMT. Student satisfaction was generally favorable, with overall mean (SD) ratings of 6.38 (1.86) for the musculoskeletal laboratory and 7.81 (1.69) for the cardiovascular laboratory out of a maximum of 10 points. In open-ended comments, students deemed the combined laboratories as clinically applicable but desired more time for completing the laboratories.

Conclusion: Measurement of specific physiologic musculoskeletal and cardiovascular parameters before and after OMT enabled quantification of physiologic responses to OMT. Students' favorable feedback indicated that the quality of learning in the laboratories was enhanced by the addition of physiologic measurements.

Full text available here.

 

Spine

doi: 10.1097/BRS.0000000000000605

Abstract:

Study Design. A cross-sectional, observational study.

Objective. To determine whether pain and fear of pain have competing effects on postural sway in patients with low back pain (LBP).

Summary of Background Data. Competing effects of pain and pain-related fear on postural control can be proposed as the likely explanation for inconsistent results regarding postural sway in the LBP literature. We hypothesized that although pain might increase postural sway, fear of pain might reduce sway through an increased cognitive effort or increased cocontraction to restrict body movement. The cognitive strategy would be less effective under dual-task conditions and the cocontraction strategy was expected to be less effective when standing on a narrow base of support surface.

Methods. Postural sway was measured in combined conditions of base of support (full and narrow) and cognitive loading (single and dual tasks) in 3 experimental groups with current LBP, recent LBP, and no LBP. Sway amplitude, path length, mean power frequency, and sample entropy were extracted from center-of-pressure data.

Results. The current-LBP group and recent-LBP group reported significantly different levels of pain, but similar levels of pain catastrophizing and kinesiophobia. The current-LBP group tended to display larger sway amplitudes in the anteroposterior direction compared with the other 2 groups. Mean power frequency values in mediolateral direction were lower in patients with the current LBP compared with recent LBP. Smaller sample entropy was found in the current-LBP group than the other groups in most experimental conditions, particularly when standing on a narrow base of support.

Conclusion. Alterations of postural sway are mostly mediated by pain but not pain-related fear. LBP tends to increase sway amplitude, which seems to be counteracted by increased effort invested in postural control leading to decreased frequency and increased regularity of sway particularly under increased task demands.

Level of Evidence: Cross-sectional study

Full text available here.

doi:10.1186/s12998-014-0024-9

Background

Spinal manipulation for nonspecific neck pain is thought to work in part by improving inter-vertebral range of motion (IV-RoM), but it is difficult to measure this or determine whether it is related to clinical outcomes.

Objectives

This study undertook to determine whether cervical spine flexion and extension IV-RoM increases after a course of spinal manipulation, to explore relationships between any IV-RoM increases and clinical outcomes and to compare palpation with objective measurement in the detection of hypo-mobile segments.

Method

Thirty patients with nonspecific neck pain and 30 healthy controls matched for age and gender received quantitative fluoroscopy (QF) screenings to measure flexion and extension IV-RoM (C1-C6) at baseline and 4-week follow-up between September 2012-13. Patients received up to 12 neck manipulations and completed NRS, NDI and Euroqol 5D-5L at baseline, plus PGIC and satisfaction questionnaires at follow-up. IV-RoM accuracy, repeatability and hypo-mobility cut-offs were determined. Minimal detectable changes (MDC) over 4 weeks were calculated from controls. Patients and control IV-RoMs were compared at baseline as well as changes in patients over 4 weeks. Correlations between outcomes and the number of manipulations received and the agreement (Kappa) between palpated and QF-detected of hypo-mobile segments were calculated.

Results

QF had high accuracy (worst RMS error 0.5o) and repeatability (highest SEM 1.1o, lowest ICC 0.90) for IV-RoM measurement. Hypo-mobility cut offs ranged from 0.8o to 3.5o. No outcome was significantly correlated with increased IV-RoM above MDC and there was no significant difference between the number of hypo-mobile segments in patients and controls at baseline or significant increases in IV-RoMs in patients. However, there was a modest and significant correlation between the number of manipulations received and the number of levels and directions whose IV-RoM increased beyond MDC (Rho=0.39, p=0.043). There was also no agreement between palpation and QF in identifying hypo-mobile segments (Kappa 0.04-0.06).

Conclusions

This study found no differences in cervical sagittal IV-RoM between patients with non-specific neck pain and matched controls. There was a modest dose-response relationship between the number of manipulations given and number of levels increasing IV-RoM - providing evidence that neck manipulation has a mechanical effect at segmental levels. However, patient-reported outcomes were not related to this.

Free full text available here.

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The topic of the 9th “Open Forum for Osteopathic Education” conference is "Osteopathic models - between tradition and evidence-based practice"

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