Scoliosis is a medical condition in which a person's spine has a sideways curve. The curve is usually "S"- or "C"-shaped over three dimensions. Mild scoliosis does not typically cause problems, but severe cases can interfere with breathing. Scoliosis does not have a complete cure, but the symptoms can be controlled and reduced with the help of treatment. This disorder causes an abnormal curve in the backbone or spine. From the side, the spine has some normal curves but then it should look straight when viewed from the front. Kyphosis is a curve found in the spine when viewed from the side where the spine is found to be bent forward. There is a common kyphosis in the thoracic spine, or in the middle of the spine. Lordosis is once again a curve seen from the side where the backbone is found to be bent backward. Again, the cervical or upper spine and the lower or lumbar spine show normal lordosis. Yet people with scoliosis grow an extra curve on either side of the body and the spine bones begin to twist each other, resulting in an "S" or "C" shape in the spine that causes lumbar scoliosis.
Scoliosis is found to be more common among girls compared to boys and is more common at an age group above 10. People with scoliosis tend to give birth to infants with the defect as well. But then there is no correlation between the severity of the curves from one generation to the next. Since the exact cause of scoliosis is unknown, hence it is referred to as idiopathic. The types of scoliosis are described below:
- Infantile idiopathic scoliosis is the term used for children who are below 3 years and suffer from scoliosis
- Juvenile idiopathic scoliosis is the term used when it is found among children between the age group of 3-10 years
- Adolescent idiopathic scoliosis is the term used for patients who are in the age group of 10-18 years.
80% of the people diagnosed are affected with idiopathic scoliosis and the majority of them are young girls and the problem is usually detected in the thoracic spine. Another classification for scoliosis is given below:
- Kyphoscoliosis: where a combination of lateral and outward spine curvature exists
- Dextroscoliosis: Here the curvature of the spine exists to the right
- Levoconvex: The curvature of the spine is in the left
- Rotoscoliosis or rotatory scoliosis: the curvature found in the spine is capable of turning on its own axis
- Thoracolumbar: This curvature is related to both the thoracic and lumbar regions present in the spine
Some of the other causes of scoliosis that falls under the remaining 20% can categories scoliosis in some more types:
Functional: In this kind of scoliosis it is observed that earlier the spine is normal, but a curvature has developed over a period of time as a result of an abnormality in other parts of the body like muscle spasms experienced in the body or any one of the legs being shorter than the other one.
Neuromuscular: This kind of scoliosis is a result of a problem developed during the formation of the spine bones. Either the bones in the spine failed to form completely or they failed to segregate from each other during fetal development. This is congenital scoliosis and will be accompanied by other disorders like birth defects, cerebral palsy, muscular dystrophy or Marfan syndrome. Infants born with this condition usually have C shaped spine with weak muscles that are unable to hold them straight. This is a very aggressive form of scoliosis and needs serious attention and treatment.
Degenerative: This kind of scoliosis is found more commonly among older adults. This condition can arise as a result of arthritis known as spondylosis. The normal ligaments grow weak gradually and the soft tissues around the spine which are combined with abnormal spurs of bones can give rise to an abnormal curvature of the spine. The spine can also get affected by osteoporosis, disc degeneration or vertebral compression fractures.
There can be a few more causes that can give rise to scoliosis like osteoid osteoma which is a spine tumor. In fact, this is normal but will cause pain. People tend to lean to the other side of the pain and tend to lower the pressure on the tumor to avoid the pain. This leaning may cause backbone deformity. Some other factors may also play a role in causing or contributing to the development of scolioses, such as genetics, irregular fibrillin metabolism or muscle dysfunction.
The change in the curve of the spine occurs so slowly that it is easy to miss until it becomes a major physical deformity. Many may notice that clothes are not fitting properly as earlier. Some of the other symptoms of scoliosis may include tilt in the head or leaning to any one side of the rib cage or hop. When scoliosis grows more severe then rib pain, neck pain, and back pain can occur and in worse conditions, muscle spasms and abdominal pain and trouble in heart and lungs can also be observed. The patient can have shortness of breath and chest pain too.