Waldron H A
St Mary's Hospital, London.
J R Soc Med. 1991 Sep;84(9):547-9. doi: 10.1177/014107689108400915.
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.
对来自不同时期骨骼人群的椎弓根峡部裂粗患病率进行了估计。患病率从罗马-不列颠时期的3.74%稳步上升至中世纪人群的5.08%，但在18/19世纪背景下的人群中，该患病率大幅降至1.42%。然而，这一趋势在统计学上并不显著。直到18/19世纪出现预期的男性患病率过高之前，男女比例大致为1。这些病变主要影响L5，且均为峡部型。在总共52例病例中，只有4例为单侧病变。1例发生在第四颈椎。并发症很少；4例发现腰椎滑脱，3例在移位椎板上缘有骨关节炎改变。
