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J R Soc Med. 1991 September; 84(9): 547–549.
PMCID: PMC1293418

Variations in the prevalence of spondylolysis in early British populations.

Abstract

Crude prevalence rates of spondylolysis were estimated in skeletal populations from various periods. There was a steady increase in prevalence from 3.74% in Romano-British to 5.08% in medieval populations, but the rate fell considerably to 1.42% in a population from an 18th/19th century context. This trend was not statistically significant, however. The male/female ratio was approximately unity until the 18th/19th century when the expected male excess appeared. The lesions predominantly affected L5 and all were isthmic in type. Of the total of 52 cases, only four were unilateral. One occurred in the fourth cervical vertebra. There were few complications; spondylolisthesis was noted in four cases and in three there were osteoarthritic changes on the superior margin of the displaced lamina.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.
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Articles from Journal of the Royal Society of Medicine are provided here courtesy of Royal Society of Medicine Press