CONCLUSIONS: The increased incidence of the unilateral lumbar pars stress injuries or frank defect on the contralateral side in a throwing sports, e.g., cricket (fast bowling), may be related to ...

The general aetiology, diagnosis, and treatment of spondylolysis, a bone defect ... 53 L5 lesions, eight L4 lesions, two L3 lesions, and one bilateral lesion at the L2 level. Two more lesions at two ...

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 ...