Spondylolysis and Spondylolisthesis are related spinal conditions that primarily affect the lower back. Spondylolysis refers to a stress fracture or crack in one of the vertebrae, typically in the pars interarticularis, a small bony arch in the back of the spine. When this fracture leads to the vertebra slipping forward over the bone below it, the condition is known as spondylolisthesis. This slippage can cause the spine to become unstable, leading to pain, nerve compression, and other complications.
The exact cause of spondylolysis is often repetitive stress or overuse, particularly in athletes who engage in sports that need hyperextension of the spine, such as gymnastics or football. Spondylolisthesis can develop as a result of spondylolysis, aging (degenerative changes), or congenital factors. Symptoms are lower back pain, stiffness, muscle tightness, and, in more advanced cases, numbness, tingling, or weakness in the legs because nerve compression.
Diagnosing spondylolysis and spondylolisthesis typically involves imaging tests like X-rays, MRI, or CT scans to assess the extent of the fracture or slippage. Treatment depends on the severity of the condition and can vary from rest and physical therapy to bracing or, in severe cases, surgery. The goal is to stabilize the spine, relieve pain, and restore function. Early diagnosis and intervention is important to prevent the condition from worsening and to maintain spinal health and mobility.