Isthmic spondylolisthesis, or spondylolisthesis due to a lesion of the pars interarticularis, is a common source of pain and disability in both the pediatric and adult population. This review ...

One patient with spina bifida and a right-sided L5 pars defect remained symptomatic following direct repair. The mean preoperative ODI was 39.4 (SD = 3.6), improving to 6.4 (SD = 5.2) at the ...

Isthmic spondylolysis is found in about 4–6% of the population The vast majority of radiographically evident pars defects develop during early childhood without symptoms Spondylolysis occurs more ...