Kyphosis

Definition

Kyphosis is a curving of the spine that causes a bowing or rounding of the back, which leads to a hunchback or slouching posture.

Alternative Names

Scheuermann's disease; Roundback; Hunchback; Postural kyphosis

Causes

Kyphosis can occur at any age, although it is rare at birth.

Adolescent kyphosis, also known as Scheuermann's disease, is caused by the wedging together of several bones of the spine (vertebrae) in a row. The cause of Scheuermann's disease is unknown.

In adults, kyphosis can be caused by:

Other causes of kyphosis include:

Kyphosis can also be seen with scoliosis. Each cause has its own risk factors.

Symptoms

Exams and Tests

Physical examination by a health care provider confirms the abnormal curve of the spine. The doctor will also look for any nervous system (neurological) changes (weakness, paralysis, or changes in sensation) below the curve.

Other tests may include:

Treatment

Treatment depends on the cause of the disorder:

Treatment for other types of kyphosis depends on the cause. Surgery is needed if neurological symptoms or persistent pain develop.

Outlook (Prognosis)

Adolescents with Scheuermann's disease tend to do well even if they need surgery, and the disease stops once they stop growing. If the kyphosis is due to degenerative joint disease or multiple compression fractures, surgery is needed to correct the defect and improve pain.

Possible Complications

Prevention

Treating and preventing osteoporosis can prevent many cases of kyphosis in the elderly. Early diagnosis and bracing of Scheuermann's disease can reduce the need for surgery, but there is no way to prevent the disease.

References

Spiegel DA, Hosalkar HS, Dormans JP. The spine. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 18th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 678.

Freeman BL III. Scoliosis and kyphosis. In: Canale ST, Beaty JH, eds. Campbell's Operative Orthopaedics. 11th ed. Philadelphia, Pa: Mosby Elsevier; 2007:chap 38.