Radial Extracorporeal Shock Wave Treatment (rESWT) of Myofascial Pain Syndrome in Low Back Pain

April 27, 2019 updated by: Ricardo Kobayashi, University of Sao Paulo

Prospective, Comparative, Randomized Study of the Effectiveness of Shock Wave Treatment in Myofascial Pain Syndrome in Low Back Pain

The purpose of this study is to evaluate the efficacy of treatment of radial shockwave in myofascial pain syndrome in the lumbar region compared to placebo through questionnaires and imaging exams.

Study Overview

Detailed Description

BACKGROUND: Extracorporeal shockwave treatment has been used widely for musculoskeletal conditions, however no randomized controlled trial are available about its use for chronic low back pain with myofascial pain syndrome (MPS).

HYPOTHESIS: Radial extracorporeal shockwave treatment (rESWT) improves pain intensity and functional disability compared with placebo in patients with chronic low back pain due to MPS.

STUDY DESIGN: Randomized controlled clinical trial METHODS: A prospective, randomized, double-blind, placebo-controlled study will be carried out on 40 patients who has moderate to severe pain (VAS > 4) for more than 6 months, despite 6 weeks of conservative treatment with antidepressants associated with rehabilitation. Six interventions of rESWT (3-4 bar; 1000 impulses per trigger point (TP) or 2500 impulses per muscle) will be compared with placebo. The outcome measures were pain visual analogue scale (VAS), Oswestry Disability Index, Short-form McGill Pain Questionnaire, Roland Morris Disability Questionnaire and the temperature of the treated area will be evaluated with Thermography. The assessments will be apply before treatment, after conservative treatment, 6 and 12 weeks after rESWT.

Study Type

Interventional

Enrollment (Actual)

46

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Sao Paulo, Brazil, 05403-010
        • IOT HCFMUSP - Instituto de Ortopedia e Traumatologia do Hospital das Clínicas da Faculdade de Medicina da USP

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Presenting clinical complaints of lumbar and / or gluteal pains for 3 months or more
  • Display pain of moderate to severe intensity: visual analogue scale (VAS)> 4
  • Diagnosis of myofascial pain syndrome in the lumbar and / or gluteal
  • Authorize in writing the term of free and informed consent to participate in the study
  • Availability of frequent attendance at hospital

Exclusion Criteria:

  • Organic or psychological disorders that contraindication participation of patients in study
  • Metabolic, infectious, oncological or rheumatologic disorders
  • Fibromyalgia
  • Labor dispute
  • Indication for surgery in column
  • Contraindications to therapy of shock waves:

    • Coagulopathy and / or anticoagulant
    • Pregnancy
    • Acute infection in soft tissue or bone
    • Systemic Infections
    • Presence of ulcers at treatment sites
    • Presence of larger vessels or nerves at treatment sites
    • Polyneuropathies
    • Malignancies
    • Cardiac arrhythmias or use of pacemaker
    • Epilepsy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Radial Extracorporeal Shock Wave
Swiss DolorClast® CLASSIC applicator
Radial Extracorporeal Shock Wave applicator use in 6 sessions with 1 week of interval, 1000 impulses per myofascial trigger point, 5 to 7 hertz frequency, 2 to 4 bar pressure
Placebo Comparator: Placebo
Swiss DolorClast® CLASSIC placebo applicator
Placebo applicator, use in 6 sessions with 1 week of interval, 1000 impulses per myofascial trigger point, 5 to 7 hertz frequency, 2 to 4 bar pressure

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Evidence of pain relief by visual analogue scale (VAS) of radial extracorporeal shock waves in myofascial pain syndrome in the lumbar and gluteal region compared to placebo
Time Frame: 12 weeks after the last session of shockwave
The outcome will be assessed by Visual Analogue Scale (VAS)
12 weeks after the last session of shockwave

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Ricardo Kobayashi, IOT HCFMUSP - Instituto de Ortopedia e Traumatologia do Hospital das Clínicas da Faculdade de Medicina da USP

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 7, 2013

Primary Completion (Actual)

March 19, 2018

Study Completion (Actual)

January 18, 2019

Study Registration Dates

First Submitted

April 14, 2013

First Submitted That Met QC Criteria

April 18, 2013

First Posted (Estimate)

April 19, 2013

Study Record Updates

Last Update Posted (Actual)

April 30, 2019

Last Update Submitted That Met QC Criteria

April 27, 2019

Last Verified

April 1, 2019

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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