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Spine (Phila Pa 1976). 1994 Apr 1;19(7):801-6.

The relative contributions of the disc and zygapophyseal joint in chronic low back pain.

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1
Faculty of Medicine, University of Newcastle, Australia.

Abstract

STUDY DESIGN:

A prospective cross-sectional analytic approach was taken.

OBJECTIVES:

This study sought to determine the relative contribution of the disc and the zygapophyseal joint as a pain source in patients with chronic low back pain.

SUMMARY OF BACKGROUND DATA:

Previous studies have employed either zygapophyseal joint blocks or discography, but in no studies have both procedures been performed.

METHODS:

Ninety-two consecutive patients with chronic low back pain were studied using both discography and blocks of the zygapophyseal joints.

RESULTS:

Thirty-six patients (39%) had at least one positive discogram as defined by exact pain reproduction, an abnormal image, and a negative control. Eight patients responded to both a screening zygapophyseal joint block using lignocaine and a confirmatory block using bupivacaine. Only three patients had both a positive discogram and a symptomatic zygapophyseal joint.

CONCLUSIONS:

In patients with chronic low back pain, the combination of discogenic pain and zygapophyseal joint pain is uncommon.

PMID:
8202798
[Indexed for MEDLINE]
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