What is spondylolysis ?
A defect of pars interarticularis or spondylolysis, is a crack in the pars mainly related to repetitive micro trauma over a period of time. This injury is prevalent in weight lifters and gymnasts. Spondylolysis is present in about five percent of the population. The treatment would be conservative at first with exercise, physical therapy and bracing. If the pain is intractable and does not respond to conservative measures, surgery is an option.