Index to Chiropractic Literature
Index to Chiropractic Literature
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Friday, February 26, 2021
Index to Chiropractic LiteratureIndex to Chiropractic LiteratureIndex to Chiropractic Literature
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ID 4573
  Title Analysis of zygapophyseal joint cracking during chiropractic manipulation
URL https://www.ncbi.nlm.nih.gov/pubmed/7790785
Journal J Manipulative Physiol Ther. 1995 Feb;18(2):65-71
Author(s)
Subject(s)
Peer Review Yes
Publication Type Clinical Trial
Abstract/Notes

OBJECTIVES: To determine if there is a relationship between the side of head rotation and the side of joint crack during "diversified" rotatory manipulation of the cervical spine.

DESIGN: Randomized experimental study.

SETTING: Macquarie University, Centre for Chiropractic, Summer Hill, New South Wales.

SUBJECTS: Fifty asymptomatic subjects were recruited from the students and staff of the above college.

INTERVENTION: Single, unilateral "diversified," high velocity, low amplitude, rotatory thrust technique.

MAIN OUTCOME MEASURES: Joint crack sound wave analysis of digital audio tape (DAT) recordings, taken from two skin mounted microphones positioned on either side of the cervical spine.

RESULTS: All 50 subjects exhibited at least one audible joint crack sound during manipulation. Forty-seven subjects (94%) exhibited cracking on the ipsilateral side to head rotation (95% confidence interval, 83.5% to 98.7%). One subject exhibited joint cracking on the contralateral side only, while two subjects exhibited bilateral joint crack sounds. There was a statistically significant lower rate of exclusively ipsilateral joint cracking in subjects with a history of neck trauma (80% vs. 100%, p = .023).

CONCLUSIONS: This research suggests that during the "diversified" rotatory manipulation of the cervical spine utilized in this study, there is a higher occurrence of the joint crack on the ipsilateral side to head rotation.

This abstract is reproduced with the permission of the publisher. Article only available in print.


 

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