The Journal of Bone and Joint Surgery, Vol 66, Issue 7 1048-1055, Copyright © 1984 by Journal of Bone and Joint Surgery, Inc
Spine radiographs in patients with low-back pain. An epidemiological study in men
JW Frymoyer, A Newberg, MH Pope, DG Wilder, J Clements and B MacPherson
A cohort of 321 men between the ages of eighteen and fifty-five was
randomly selected from a group of 1221 men who had been surveyed by a
questionnaire. They then had radiographs made of the lumbar spine. Of the
292 subjects fulfilling the criteria for inclusion in the study, ninety-six
(32.9 per cent) had never had low-back pain, 134 (45.9 per cent) had had or
were having moderate low-back pain, and sixty-two (21.2 per cent) had had
or were having severe low-back pain. In the three groups there was a
similar frequency of transitional vertebrae, Schmorl's nodes, the disc
vacuum sign, narrowing of the disc space between the third and fourth
lumbar and the fifth lumbar and first sacral vertebrae, and claw spurs.
When there were traction spurs or disc-space narrowing, or both, between
the fourth and fifth lumbar vertebrae, an increased incidence of severe
low-back pain was evident. There also was a significant association of
these two radiographic findings with symptoms (pain, weakness, and
numbness) in the lower limbs. The measured lumbar lordosis, the length of
the transverse process of the fourth lumbar vertebra, and the relationship
between the fourth and fifth lumbar vertebral bodies with reference to the
intercristal line had no association with the low-back pain. Increased
lumbar lordosis had a significant association with decreased disc-space
height and wedging deformity of the disc between the fourth and fifth
lumbar vertebrae.(ABSTRACT TRUNCATED AT 250 WORDS)