Medical Health Encyclopedia

Other Biologic Factors. A number of other biologic factors are being investigated for some contribution to scoliosis:

• Abnormalities in collagen, the critical structural protein found in muscles and bones. Enzymes known as matrix metalloproteinases are involved in the repair and remodeling of collagen. Researchers have found high levels of the enzymes in the disks of patients with scoliosis, which suggests that the enzymes may contribute to curve progression. Elevated levels of the enzymes can cause abnormalities in components in the spinal disks, contributing to disk degeneration.
• A possible defective gene responsible for production of fibrillin, an important component of connective tissue, which makes up bones and muscles.
• Abnormalities in a protein called platelet calmodulin that binds to calcium. This protein acts like a tiny muscle and pulls clots together. Measuring levels of this protein may eventually help predict whether scoliosis will worsen.

Congenital Scoliosis

Congenital scoliosis is caused by inborn spinal deformities that may result in the development of absent or fused vertebrae. Kidney problems, particularly having only one kidney, often coincide with congenital scoliosis. The condition usually becomes evident at either age 2 or between ages 8 and 13 as the spine begins to grow more quickly, putting additional stress on the abnormal vertebrae. It is essential to diagnose and monitor such curvatures as early as possible, since they can progress quickly. Early surgical treatment--before age 5--may be important in many of these patients to prevent serious complications.

Causes of Degenerative Lumbar Scoliosis in Adults

Text Continues Below

---

Adult scoliosis has two primary causes:

• Progression of childhood scoliosis.
• Degenerative lumbar scoliosis. Degenerative lumbar scoliosis is a condition that typically develops after age 50. With this condition, the lower spine is affected and is usually due to disc degeneration. Osteoporosis, a serious problem in many older adults, is not a risk factor for new-onset scoliosis, but it can be a contributing factor. In most cases, however, it is not known why scoliosis occurs in adults.

Conditions That Affect the Spinal Column and Surrounding Muscles