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What Is Spondylolisthesis?

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Spondylolisthesis is caused when one vertebra slips or slides forward on the vertebra below, typically causing pain and weakness along the neck and back. In most cases, it is congenital or caused very early because of the way babies are carried or due to improper posture or gait. It can also be caused by sudden bending, lifting weights or injury.

Spondylolisthesis or a slipped vertebra (as opposed to a slipped disk or herniated disk) is when one vertebra slips or slides forwards on the vertebra below, which can occur for a number of reasons including getting older (“degenerative spondylolisthesis”) or trauma (from a fracture in the back of the vertebra called the “pars interarticularis”).

Additionally, one can be born with it (congenital) or it can occur early in life, while the spine is still developing. The most common method of measuring the amount the vertebrae slides forwards is done by the percentage of slip (such as 50% is when a vertebra has slid forwards halfway, over the adjacent lower vertebra).

This can happen anywhere in the spine (the neck, mid-back or low back), but it is most commonly seen in the low back, particularly at the lowest levels (L4 and L5). This occurs in about 3-6% of the population; however, in certain populations, the incidence rate can be three times (or more) higher.

For example, certain Inuit populations carry their babies vertically in a papoose that overloads the child’s young spine during development, which results in a greater prevalence of spondylolisthesis among that group.

Spondylolisthesis and Back Pain

Some studies report that spondylolisthesis usually develops at a very young age and certain pelvic alignments may contribute to whether it is likely to occur, such as a “sway back” posture (increased sacral slope).

An interesting study looked at how often spondylolisthesis is found in subjects with NO low back pain. Researchers reviewed 510 cases of patients presenting with abdominal pain and other non-spine related complaints and found spondylolisthesis in 16 cases (3.1%).

So there you have it! If you have spondylolisthesis, you may have:

  • No back pain,
  • Pain related to something entirely different and separate from it,
  • Pain directly related to it.

In some cases, the cause of a patient’s back pain maybe due to spondylolisthesis caused by an unexpected backward bend of the lower back (like a slip and fall, sports injury, etc.) with immediate pain that increases with backward bending. However, in many cases a patient may suffer from spondylolisthesis that is stable, old and has nothing to do with their present complaint.

A thorough case history and examination will indicate which is more likely the case, so that treatment can focus on the cause of the patient’s pain.

Dr. Blake Kalkstein DC, MS, CCSP, TPI, ART

While earning his D.C. degree, Dr. Blake worked as a chiropractic intern at the Walter Reed National Military Medical Hospital in Bethesda, MD where he had the privilege to work in the amputee rehabilitation center. Dr. Blake’s post graduate sports medicine internship with John’s Hopkins Sports Medicine orthopedic surgeons allowed him to observe all types of injuries. Guidance from Dr. John Wilckens, team orthopedist for the Baltimore Orioles and his internship supervisor, led Dr. Blake to better understand advanced orthopedic and sports injuries and ways to appropriately manage each condition.

Dr. Blake Kalkstein DC, MS, CCSP, TPI, ART

While earning his D.C. degree, Dr. Blake worked as a chiropractic intern at the Walter Reed National Military Medical Hospital in Bethesda, MD where he had the privilege to work in the amputee rehabilitation center. Dr. Blake’s post graduate sports medicine internship with John’s Hopkins Sports Medicine orthopedic surgeons allowed him to observe all types of injuries. Guidance from Dr. John Wilckens, team orthopedist for the Baltimore Orioles and his internship supervisor, led Dr. Blake to better understand advanced orthopedic and sports injuries and ways to appropriately manage each condition.

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