What is Spondylolysis?

What Causes Spondylolysis?

Repeated extension and rotation of the lower spine increases stress on the pars interarticularis. Gymnastics, football, wrestling and weightlifting can expose a growing spine to repeated loading before the growth plates have closed. A crack that begins on one side may later affect both sides.

Symptoms

• Focal low back pain that increases with activity
• Discomfort that becomes clearer when leaning backward
• Stiffness in the back muscles and reduced movement
• Pain that may reach the thigh but usually does not travel down the leg

Frequently Asked Questions

Is spondylolysis the same as spondylolisthesis?

No. Spondylolysis is a stress fracture in the bony bridge, whereas spondylolisthesis is forward or backward movement of one vertebra relative to another. Not every stress fracture causes slippage. Examination, X-rays and, when needed, MRI or CT assess healing and spinal alignment.