What is bilateral pars defect at L5-S1?

Bilateral pars defect at L5-S1 refers to a condition where there are fractures or defects in the pars interarticularis, a bony segment of the vertebrae, on both sides of the fifth lumbar vertebra. This condition can lead to instability of the spine and may result in spondylolisthesis, where the vertebra slips forward over the one below it. It is often associated with various symptoms such as lower Back pain and may be caused by repetitive stress or genetic factors. Diagnosis typically involves imaging studies like X-rays or MRI, and treatment may include physical therapy, bracing, or surgery in severe cases.