What is the spinal condition where cord grows and tightens cord?

The condition you are referring to is called tethered spinal cord syndrome. It occurs when the spinal cord is attached to the tissues surrounding the spine, such as the vertebrae or dura mater, preventing it from moving freely. This can cause a number of problems, including pain, weakness, and numbness in the legs and feet, as well as incontinence.

Tethered spinal cord syndrome can be caused by a number of factors, including spina bifida, spinal tumors, and trauma. It is most often seen in children, but it can also occur in adults.

Treatment for tethered spinal cord syndrome typically involves surgery to release the cord. In some cases, medication and physical therapy may also be helpful.