Original Research

The effect of sacroiliac chiropractic adjustments on innominate angles

Malany Moodley, Melanie Craig
Health SA Gesondheid | Vol 25 | a1398 | DOI: https://doi.org/10.4102/hsag.v25i0.1398 | © 2020 Malany Moodley, Melanie Craig | This work is licensed under CC Attribution 4.0
Submitted: 13 December 2019 | Published: 17 November 2020

About the author(s)

Malany Moodley, Department of Chiropractic, Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa
Melanie Craig, Department of Chiropractic, Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa


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Abstract

Aim: The aim of this study was to determine whether or not a measurable change in the angle of the innominate bone could be identified after a chiropractic sacroiliac adjustment using a ‘PALM PALpation Meter’. Secondly, if a change in the angle of the innominate bone was identified, what was the degree of change in the angle of the innominate bone, induced by the sacroiliac joint (SIJ) adjustment.

Method: This was a true experimental study that consisted of 100 participants who met the inclusion criteria. The participants were randomly allocated to either the treatment or control group. Each group had 50 participants: 25 females and 25 males. Informed consent was obtained from participants prior to commencement of treatment. The treatment group received a chiropractic adjustment based on their specific SIJ dysfunction. The control group was treated with detuned ultrasound therapy (sham treatment).

Procedure: Treatment consisted of a once-off treatment. The angles of the innominate bones were measured bilaterally pre- and post-treatment in both groups. Objective data were collected using the PALM PALpation Meter. Once the dysfunctional SIJ was identified, participants in group 1 were treated with specific chiropractic adjustment techniques based on the restriction. Group 2 participants were treated with detuned ultrasound only.

Results: The results of this study showed that a specific chiropractic adjustment resulted in a measurable change in the angle of the innominate bone (p ≤ 0.001). The change in angle was evident bilaterally; however, the side that was adjusted shows the greatest degree of change. The mean change in angle for the treatment group was 2.25° on the side of dysfunction.

Conclusion: The results of this study showed that a specific chiropractic adjustment can have a positive effect on the angles of the innominate bone, resulting in the tilt of the pelvis levelling into what is considered to be its correct anatomical alignment.


Keywords

sacroiliac; innominate; PALM PALpation Meter; chiropractic; adjustments

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