Kyphosis

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Medical Author:

Jason C. Eck, DO, MS

Jason C. Eck, DO, MS

Dr. Eck received a Bachelor of Science degree from the Catholic University of America in Biomedical Engineering, followed by a Master of Science degree in Biomedical Engineering from Marquette University. Following this he worked as a research engineer conducting spine biomechanics research. He then attended medical school at University of Health Sciences. He is board eligible in orthopaedic surgery.

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Medical Editor:

William C. Shiel Jr., MD, FACP, FACR

William C. Shiel Jr., MD, FACP, FACR

Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

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The spine has a series of normal curves when viewed from the side. These curves help to better absorb the loads applied to the spine from the weight of the body. The cervical spine (neck) and lumbar spine (lower back) are have a normal inward curvature that is medically referred to as lordosis or "lordotic" curvature by which the spine is bent backward. The thoracic spine (upper back) has a normal outward curvature that is medically referred to as kyphosis or the "kyphotic" curve by which the spine is bent forward.

The spine is normally straight when looking from the front. An abnormal curve when viewed from the front is called scoliosis. Scoliosis can occur from design at birth or from rotation or an abnormal twisting of the vertebrae as from pain.

The normal curves of the spine allow the head to be balanced directly over the pelvis. If one or more of these curves is either too great or too small, the head may not be properly balanced over the pelvis. This can lead to back pain, stiffness, and an altered gait or walking pattern.

The most common symptoms for patients with an abnormal kyphosis are the appearance of poor posture with a hump appearance of the back or "hunchback," back pain, muscle fatigue, and stiffness in the back. Most often, these symptoms remain fairly constant and do not become progressively worse with time.

In more severe situations, the patient may notice their symptoms worsening with time. The kyphosis can progress, causing a more exaggerated hunchback. In rare cases, this can lead to compression of the spinal cord with neurologic symptoms including weakness, loss of sensation, or loss of bowel and bladder control. Severe cases of thoracic kyphosis can also limit the amount of space in the chest and cause cardiac and pulmonary problems leading to chest pain and shortness of breath.