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Scoliosis

Spinal curvature; Infantile scoliosis; Juvenile scoliosis

Scoliosis is an abnormal curving of the spine. Your spine is your backbone. It runs straight down your back. Everyone's spine naturally curves a bit. But people with scoliosis have a spine that curves too much. The spine might look like the letter C or S.

Causes

Most of the time, the cause of scoliosis is unknown. This is called idiopathic scoliosis. It is the most common type. It is grouped by age.

  • In children age 3 and younger, it is called infantile scoliosis.
  • In children age 4 through 10, it is called juvenile scoliosis.
  • In children age 11 through 18, it is called adolescent scoliosis.

Scoliosis most often affects girls. Some people are more likely to have curving of the spine. Curving generally gets worse during a growth spurt.

Other types of scoliosis are:

  • Congenital scoliosis: This type of scoliosis is present at birth. It occurs when the baby's ribs or spine bones do not form properly.
  • Neuromuscular scoliosis: This type is caused by a nervous system problem that affects the muscles. Problems can include cerebral palsy, muscular dystrophy, spina bifida, and polio.

Symptoms

Most often, there are no symptoms.

If there are symptoms, they may include:

  • Backache or low-back pain that goes down the legs
  • Weakness or tired feeling in the spine after sitting or standing for a long time
  • Uneven hips or shoulders (one shoulder may be higher than the other)
  • Shoulder pain
  • Spine curves more to one side
  • Difficulty with breathing or sitting

Exams and Tests

Your health care provider will perform a physical exam. You will be asked to bend forward. This makes your spine easier to see. It may be hard to see changes in the early stages of scoliosis.

The exam may show:

  • One shoulder is higher than the other
  • The pelvis is tilted

X-rays of the spine are done. X-rays are important because the actual curving of the spine may be worse than what your doctor can see during an exam.

Other tests may include:

  • Spinal curve measurement (scoliometer screening)
  • X-rays of the spine to see how flexible the curvature is
  • MRI of the spine
  • CT scan of the spine to look at the bony changes

Treatment

Treatment depends on many things:

  • The cause of scoliosis
  • Where the curve is in your spine
  • How big the curve is
  • If your body is still growing

Most people with idiopathic scoliosis do not need treatment. But you should still be checked by your provider about every 6 months.

If you are still growing, your provider might recommend a back brace. A back brace prevents further curving. There are many different types of braces. What kind you get depends on the size and location of your curve. Your provider will pick the best one for you and show you how to use it. Back braces can be adjusted as you grow.

Back braces work best in people over age 10 with continued growing potential. Braces do not work for those with congenital or neuromuscular scoliosis.

You may need surgery if the spine curve is severe or getting worse very quickly.

Surgery involves correcting the curve as much as possible:

  • Surgery is done with a cut through the back, belly area, or beneath the ribs.
  • The spine bones are held in place with 1 or 2 metal rods. The rods are held down with hooks and screws until the bone heals together.
  • After surgery, you may need to wear a brace for a while to keep the spine stable.

Scoliosis treatment may also include:

  • Emotional support: Some children, especially teens, may be self-conscious when using a back brace.
  • Physical therapy and other specialists to help explain the treatments and make sure the brace fits correctly.

Support Groups

Seek support and more information from organizations that specialize in scoliosis.

Outlook (Prognosis)

How well a person with scoliosis does depends on the type, cause, and severity of the curve. The more severe the curving, the more likely it will get worse after the child stops growing.

People with mild scoliosis do well with braces. They usually do not have long-term problems. Back pain may be more likely when the person gets older.

The outlook for those with neuromuscular or congenital scoliosis varies. They may have another serious disorder, such as cerebral palsy or muscular dystrophy, so their goals of treatment may be much different. Often, the goal of surgery is simply to allow a child to be able to walk more properly or sit upright in a wheelchair.

Congenital scoliosis is difficult to treat and usually requires many surgeries.

Possible Complications

Complications of scoliosis can include:

  • Breathing problems (in severe scoliosis)
  • Low back pain
  • Lower self-esteem
  • Persistent pain if there is wear and tear of the spine bones
  • Spinal infection after surgery
  • Spine or nerve damage from an uncorrected curve or spinal surgery
  • Leakage of spinal fluid

When to Contact a Medical Professional

Contact your provider if you suspect your child may have scoliosis.

Prevention

Routine scoliosis screening is now done in middle schools. Such screening has helped detect early scoliosis in many children. Back and abdominal muscle strengthening can help stabilize the curvature.

Open References

References

Buell TJ, Lark R, Smith JS, Shaffrey CI. An approach for treatment of complex pediatric spinal deformity. In: Steinmetz MP, Berven SH, Benzel EC, eds. Benzel's Spine Surgery: Techniques, Complication Avoidance, and Management. 5th ed. Philadelphia, PA: Elsevier; 2022:chap 143.

Mistovich RJ, Spiegel DA. The spine. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 699.

Negrini S, Di Felice F, Donzelli S, Zaina F. Scoliosis and kyphosis. In: Frontera WR, Silver JK, Rizzo TD Jr, eds. Essentials of Physical Medicine and Rehabilitation: Musculoskeletal Disorders, Pain, and Rehabilitation. 4th ed. Philadelphia, PA: Elsevier; 2019:chap 153.

  • Scoliosis

    Scoliosis - illustration

    Abnormal curvature in the spine is known as scoliosis, and generally begins just at the onset of puberty and progresses during the period of rapid growth. Most junior high schools routinely screen for scoliosis because, if caught early, progressive spine curvature can be prevented. Scoliosis affects girls much more frequently than boys.

    Scoliosis

    illustration

  • Skeletal spine

    Skeletal spine - illustration

    The spine is divided into several sections. The cervical vertebrae make up the neck. The thoracic vertebrae comprise the chest section and have ribs attached. The lumbar vertebrae are the remaining vertebrae below the last thoracic bone and the top of the sacrum. The sacral vertebrae are caged within the bones of the pelvis, and the coccyx represents the terminal vertebrae or vestigial tail.

    Skeletal spine

    illustration

  • Scoliosis

    Scoliosis - illustration

    Lateral curvature of the spine, scoliosis, is a relatively common condition. The majority of individuals with scoliosis do not require surgery or braces because their condition is self-limiting. Progressive scoliosis, however, requires therapy. The S shaped curve is usually more apparent on an X-ray.

    Scoliosis

    illustration

  • Spinal curves

    Spinal curves - illustration

    There are four natural curves in the spinal column. The cervical, thoracic, lumbar, and sacral curvature. The curves, along with the intervertebral disks, help to absorb and distribute stresses that occur from everyday activities such as walking or from more intense activities such as running and jumping.

    Spinal curves

    illustration

  • Signs of scoliosis

    Signs of scoliosis - illustration

    Scoliosis may be suspected when one shoulder appears to be higher than the other, there is a curvature in the spine, or the pelvis appears to be tilted. The treatment of scoliosis can involve the use of a brace or surgery. Treatment is determined by the cause of the scoliosis, the size and location of the curve, and the stage of bone growth of the patient.

    Signs of scoliosis

    illustration

  • Forward bend test

    Forward bend test - illustration

    The forward bend test is a test used most often in schools and doctors offices to screen for scoliosis. During the test, the child bends forward with the feet together and knees straight while dangling the arms. Any imbalances in the rib cage or other deformities along the back could be a sign of scoliosis.

    Forward bend test

    illustration

  • Scoliosis brace

    Scoliosis brace - illustration

    One type of treatment for scoliosis is the use of a brace. The brace works by exerting pressure on the back and ribs to push the spine in a straighter position. The brace usually fits snugly around the torso and can come in many styles. In a child who is still growing, bracing is usually recommended to help slow the progression of the curve. The brace is usually worn full-time until the growth of the bones has stopped.

    Scoliosis brace

    illustration

  • Spinal fusion

    Spinal fusion - illustration

    Depending upon the severity and responsiveness to other treatment surgery may be recommended for the scoliosis. Surgical correction involves correcting the curve (although not all the way) and fusing the bones in the curve together. Bone grafts are laid across the exposed surface of each vertebra. These grafts will regenerate, grow into the bone, and fuse the vertebrae together. The bones are held in place with one or two metal rods held down with hooks and screws, which also helps to support the fusion of the vertebrae.

    Spinal fusion

    illustration

  • Scoliosis

    Scoliosis - illustration

    Abnormal curvature in the spine is known as scoliosis, and generally begins just at the onset of puberty and progresses during the period of rapid growth. Most junior high schools routinely screen for scoliosis because, if caught early, progressive spine curvature can be prevented. Scoliosis affects girls much more frequently than boys.

    Scoliosis

    illustration

  • Skeletal spine

    Skeletal spine - illustration

    The spine is divided into several sections. The cervical vertebrae make up the neck. The thoracic vertebrae comprise the chest section and have ribs attached. The lumbar vertebrae are the remaining vertebrae below the last thoracic bone and the top of the sacrum. The sacral vertebrae are caged within the bones of the pelvis, and the coccyx represents the terminal vertebrae or vestigial tail.

    Skeletal spine

    illustration

  • Scoliosis

    Scoliosis - illustration

    Lateral curvature of the spine, scoliosis, is a relatively common condition. The majority of individuals with scoliosis do not require surgery or braces because their condition is self-limiting. Progressive scoliosis, however, requires therapy. The S shaped curve is usually more apparent on an X-ray.

    Scoliosis

    illustration

  • Spinal curves

    Spinal curves - illustration

    There are four natural curves in the spinal column. The cervical, thoracic, lumbar, and sacral curvature. The curves, along with the intervertebral disks, help to absorb and distribute stresses that occur from everyday activities such as walking or from more intense activities such as running and jumping.

    Spinal curves

    illustration

  • Signs of scoliosis

    Signs of scoliosis - illustration

    Scoliosis may be suspected when one shoulder appears to be higher than the other, there is a curvature in the spine, or the pelvis appears to be tilted. The treatment of scoliosis can involve the use of a brace or surgery. Treatment is determined by the cause of the scoliosis, the size and location of the curve, and the stage of bone growth of the patient.

    Signs of scoliosis

    illustration

  • Forward bend test

    Forward bend test - illustration

    The forward bend test is a test used most often in schools and doctors offices to screen for scoliosis. During the test, the child bends forward with the feet together and knees straight while dangling the arms. Any imbalances in the rib cage or other deformities along the back could be a sign of scoliosis.

    Forward bend test

    illustration

  • Scoliosis brace

    Scoliosis brace - illustration

    One type of treatment for scoliosis is the use of a brace. The brace works by exerting pressure on the back and ribs to push the spine in a straighter position. The brace usually fits snugly around the torso and can come in many styles. In a child who is still growing, bracing is usually recommended to help slow the progression of the curve. The brace is usually worn full-time until the growth of the bones has stopped.

    Scoliosis brace

    illustration

  • Spinal fusion

    Spinal fusion - illustration

    Depending upon the severity and responsiveness to other treatment surgery may be recommended for the scoliosis. Surgical correction involves correcting the curve (although not all the way) and fusing the bones in the curve together. Bone grafts are laid across the exposed surface of each vertebra. These grafts will regenerate, grow into the bone, and fuse the vertebrae together. The bones are held in place with one or two metal rods held down with hooks and screws, which also helps to support the fusion of the vertebrae.

    Spinal fusion

    illustration

A Closer Look

 
 

Review Date: 8/12/2023

Reviewed By: C. Benjamin Ma, MD, Professor, Chief, Sports Medicine and Shoulder Service, UCSF Department of Orthopaedic Surgery, San Francisco, CA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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