| Risk Factors
Spondylolysis is a stress fracture. It occurs in a part of the vertebrae (spinal bone). The pars interarticularis is a portion of the bone between the facets. There is a right and left section.
This condition occurs in the lower back. About 90% of the time it is in the fifth lumbar vertebra. It can fracture on one or both sides (bilateral). Left untreated, it can lead to spondylolisthesis. This is a more serious condition. The vertebra slips forward on the one below it. Both conditions can cause back pain.
This fracture is the most common cause of back pain in adolescent athletes.
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Spondylolysis can be caused by:
- Congenital defect in the spine (usually appears a few years after birth)
to the back
- Degenerative conditions of the spine
Factors that increase the chance of spondylolysis:
- Playing sports (eg, gymnastics, football [especially the offensive line], diving, wrestling, weightlifting)
- Improper athletic or exercise technique
- Adolescent growth spurt
- Chronic overextension (bending backwards) with or without side bending of the back (common in certain sports and activities)
- Hamstring tightness or muscle imbalance
- Cerebral palsy
Symptoms may include:
- Pain across the lower back
- Spasms in the back and hamstring muscles
- Pain radiating down the leg
Many people have no symptoms at all.
The doctor will ask about your symptoms and medical history. A physical exam will be done.
Imaging tests to find the fracture and look for other problems in the soft tissue may include:
If you have symptoms, treatment may include:
Do not do athletic activities for several weeks to several months. In general, this restriction should last until the symptoms are gone.
Your doctor may suggest that you wear a back brace. This will help relieve pain. About 4-6 weeks of bracing may be needed.
The brace should limit extension of the lower (lumbar) spine.
To relieve the pain and prevent recurrences, a physical therapist can teach you:
- Exercises to strengthen the back and abdominal muscles—These muscles stabilize the spine.
- Proper exercise and sports techniques to help prevent overuse and further injury
- Hamstring stretches
The doctor may give you medications for pain relief.
Surgery may be needed if there is:
- Injury to the nerve
- High-grade spondylolisthesis (more than 50% slippage)
- No relief from medicine, rest, activity modification, and physical therapy
Two procedures are usually needed:
removal of bone and tissue that are putting pressure on the spinal nerves
- Spinal fusion
—fusing together of the two involved vertebrae to prevent further slippage of the vertebra
To reduce your risk of getting spondylolysis:
- Limit how much you participate in certain sports. This will help prevent overuse injury.
- Keep the abdominal and back muscles strong. Keep the hamstring muscles supple.
- Use proper equipment for your sport.
- Warm up properly before exercising or playing sports.
- Learn proper techniques for exercise and athletic activities.
- Seek medical care for chronic back pain. Early vertebral stress fractures, particularly in teens and young adults, may heal with rest.
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Last reviewed March 2013 by Teresa Briedwell, DPT, OCS
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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