A new study in the journal Spine shows us that while osteophytes (bone spurs that you see on x-rays) cause stiffness in people, it’s the narrowing of the cushioning discs in between the spine bones that can cause back pain.

They use to say that you can’t tell from an x-ray if a person has back pain or not.  While it’s true that you can’t tell with certainty that a person’s X-ray findings will tell you if a person has back pain, you can make a good guess about it.  If a person has thin disc spaces because they have abused their spine through their lifetime, then that extra compression on the joints of the spine will cause more back pain.  It makes perfect sense.

Below is the abstract to the study (after the break.)

Todd Lloyd, DC
Chiropractor in Sonoma

Spine:
1 March 2010 – Volume 35 – Issue 5 – pp 531-536
doi: 10.1097/BRS.0b013e3181aa5b33
Clinical Case Series
The Association Between Lumbar Disc Degeneration and Low Back Pain: The Influence of Age, Gender, and Individual Radiographic Features
de Schepper, Evelien I. T. MD; Damen, Jurgen MD; van Meurs, Joyce B. J. PhD; Ginai, Abida Z. MD; Popham, Maria MSc; Hofman, Albert PhD; Koes, Bart W. PhD; Bierma-Zeinstra, Sita M. PhD
Abstract
Study Design. Cross-sectional open population based study (nested in a prospective cohort study).
Objective. To explore the association of the different individual radiographic features, including osteophytes and disc space narrowing, with self-reported low back pain (LBP). Different definitions of lumbar disc degeneration with self-reported LBP and disability were considered in a large open population sample. Furthermore, in order to disentangle the discrepancies in reported strength of the associations, we characterized the frequency of the different individual radiographic features of lumbar disc degeneration and definitions of lumbar disc degeneration, as well as their association with LBP status, by age, gender, and vertebral level.
Summary of Background Data. Currently within the literature, there have been no studies that have explored different definitions of lumbar disc degeneration and their association with LBP within one study sample.
Methods. The intervertebral disc spaces (L1/2 to L5–S1) were evaluated for the presence and severity of anterior osteophytes and disc space narrowing using a semiquantitative score (grade 0–3). Logistic regression was used to determine the association between these individual radiographic features of lumbar disc degeneration and different definitions of lumbar disc degeneration for LBP.
Results. Lumbar radiographs were scored for 1204 men, and 1615 women. Osteophytes were the most frequent radiographic feature observed, with men having the greatest frequency. Disc space narrowing was more frequent in women than men. Both radiographic features increased in frequency with age.
Disc space narrowing appeared more strongly associated with LBP than osteophytes, especially in men (odds ratio [OR] = 1.9; 95% confidence interval [CI]: 1.4–2.8). Disc space narrowing at 2 or more levels appeared more strongly associated with LBP than disc space narrowing at only 1 level (OR = 2.4; 95% CI: 1.6–3.4). After excluding level L5–S1, the strength of almost all associations increased.
Conclusion. We are the first to report different possible lumbar disc degeneration definitions and their associations with LBP. Disc space narrowing at 2 or more levels appeared more strongly associated with LBP than other radiographic features, especially after excluding level L5–S1.