Using MRI Scans to Evaluate Spinal Manipulation

August 16, 2006 updated by: National Center for Complementary and Integrative Health (NCCIH)

The Effects of Positioning and Adjusting on the Z Joint

Lumbar spinal manipulation, or chiropractic adjusting, is thought to separate the surfaces of the spinal joints and thereby relieve lower back pain. This study will use MRI scans to evaluate the spinal joints before and after spinal manipulation.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Zygapophysial joints, better known as facet or "Z" joints, are located on the back (posterior) of the spine on each side of the vertebrae where it overlaps the neighboring vertebrae. Z joints provide stability and allow the spine to bend and twist. Adhesions in the Z joints may develop following hypomobility of vertebrae. These adhesions may be alleviated by separation (gapping) of the Z joints.

Side posture adjusting (spinal manipulation) is thought by many to gap the Z joints, yet no measurable differences of the Z joints before and after spinal manipulation have ever been published. This study will evaluate gapping of the L3/L4, L4/L5, and L5/S1 Z joints by taking measurements directly from MRI scans of the Z joints before and during positioning for a side posture adjustment, and before and after side posture adjusting.

Health volunteers will be randomly assigned to one of four groups: 1) neutral position followed by side posture positioning (trunk rotated to the volunteer's right); 2) neutral position followed by side posture spinal adjusting followed by neutral positioning; 3) neutral position followed by side posture spinal adjusting, followed by side posture positioning; and 4) neutral position followed by neutral position (control group). MRI scans will be taken with the volunteers in the original neutral position and in the final position (either second neutral position or side posture positioning).

Study Type

Interventional

Enrollment

64

Phase

  • Phase 1

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

  • United States
    • Illinois
      • Lombard, Illinois, United States, 60148
        • National University of Health Sciences

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

21 years to 29 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Student at the National University of Health Sciences
  • 185 pounds or less for males and 145 pounds or less for females
  • No previous history of lower back pain lasting more than 2 weeks, or no more than three episodes of back pain of brief duration (1 to 2 weeks) in any given year

Exclusion Criteria:

  • History of lower back pain
  • Presence of disc degeneration, significant osteoarthritis, scoliosis of greater than 20 degrees (Cobb's angle), or other significant pathology seen on x-rays
  • Positive findings on orthopedic or neurologic test
  • Pregnancy
  • Inability of the examining chiropractor to obtain articular releases (audible pop) during lumbar side posture adjustment given at the conclusion of the examination

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: Double

Collaborators and Investigators

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

Sponsor

National Center for Complementary and Integrative Health (NCCIH)

Investigators

  • Principal Investigator: Gregory D. Cramer, DC, PhD, National University of Health Sciences

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

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

June 1, 2000

Study Completion

October 1, 2002

Study Registration Dates

First Submitted

October 9, 2003

First Submitted That Met QC Criteria

October 10, 2003

First Posted (Estimate)

October 13, 2003

Study Record Updates

Last Update Posted (Estimate)

August 18, 2006

Last Update Submitted That Met QC Criteria

August 16, 2006

Last Verified

August 1, 2006

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • R01AT000123-01 (U.S. NIH Grant/Contract)

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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