Index to Chiropractic Literature
Index to Chiropractic Literature
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ID 19285
  Title Segment-specific association between cervical pillar hyperplasia (CPH) and degenerative joint disease (DJD)
Journal Chiropr & Osteopat. 2006 ;14(1):Online access only 11p.
Peer Review Yes
Publication Type Article
Abstract/Notes BACKGROUND: Cervical pillar hyperplasia (CPH) is a recently described phenomenon of unknown etiology and clinical significance. Global assessment of pillar hyperplasia of the cervical spine as a unit has not shown a relationship with degenerative joint disease, but a more sensible explanation of the architectural influence of CPH on cervical spine biomechanics may be segment-specific. OBJECTIVE: The objective of this study was to determine the level of association between degenerative joint disease (DJD) and cervical pillar hyperplasia (CPH) in an age- and gender-matched sample on a [cervical spine] by-level basis.

RESEARCH METHODS: Two-hundred and forty radiographs were collected from subjects ranging in age between 40 and 69 years. The two primary outcome measures used in the study were the segmental presence/absence of cervical pillar hyperplasia from C3 to C6, and segment-specific presence/absence of degenerative joint disease from C1 to C7. Contingency Coefficients, at the 5% level of significance, at each level, were used to determine the strength of the association between CPH and DJD. Odds Ratios (OR) with their 95% Confidence Intervals (95% CI) were also calculated at each level to assess the strength of the association.

RESULTS: Our study suggests that an approximately two-to-one odds, or a weak-to-moderate correlation, exists at C4 and C5 CPH and adjacent level degenerative disc disease (DDD); with the strongest (overall) associations demonstrated between C4 CPH and C4-5 DDD and between C5 CPH and C5-6 DDD. Age-stratified results demonstrated a similar pattern of association, even reaching the initially hypothesized OR >/= 5.0 (95% CI > 1.0) or "moderately-strong correlation of C >/= .4 (p CONCLUSION: Our results suggest that CPH has around two-to-one odds, that is, only a weak-to-moderate association with the presence of DJD (DDD component) at specific cervical spine levels; therefore, CPH may be but one of several factors that contributes (to a clinically important degree) to the development of DJD at specific levels in the cervical spine.

This abstract is reproduced with the permission of the publisher. Click on the above link for free full text. PubMed Record

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