Tethered spinal cord means that the spinal cord movement is limited within the spinal column due to abnormal tissue attachments.
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Usually, as your child develops, the spinal cord ends at a point in the lower back where it is not attached to any skin or other structure. This gives the cord freedom to grow along with your child.
If your child has a tethered cord, also known as tethered cord syndrome, some disease, trauma or disorder has caused the cord to attach to the spinal column.
As your child grows, the spinal cord can stretch, causing damage to the cord and the nerves around it. Your child might have weakness in the arms and legs, back pain and problems controlling their bladder because of the tethered cord.
This condition is closely associated with spina bifida, a birth defect in which the spinal cord does not close properly during fetal development.
The following situations and conditions can cause a tethered spinal cord:
A tethered spinal cord can cause problems from the time your infant is born, or as your child grows, depending on the cause and severity of the disorder. These problems can include paralysis or reduced sensation in the lower part of your child’s body, which affects movement and bladder control.
If your child has a tethered cord, you’ll need to find care from a team of specialists in pediatric care, including pediatric urology. Some infants and children require surgery to repair their tethered cord and to help with bladder control problems.
Children born with a serious problem of tethered cord may need surgery as soon as possible to prevent complications. This is especially true of children who have severe forms of spina bifida such as myelomeningocele. If doctors do not correct how the spinal cord is attached, the child’s growth will stretch and damage the spinal cord, causing further problems with movement, nerves and urination.
Doctors carefully monitor children who have a tethered cord and no symptoms. If your child begins to show symptoms such as pain, muscle weakness, incontinence (leaking of urine) or other bladder trouble, doctors may recommend surgery as soon as possible to prevent further damage from your child’s growth.
Surgery to untether your child’s spinal cord does not correct damage that already has occurred. If your child already had a neurogenic bladder, or inability to control the bladder and urine flow, an experienced pediatric urologist will recommend treatment for the bladder problem. Nerve damage can keep the bladder from emptying as it should. This can cause frequent urinary tract infections (UTI) and kidney problems. Some children need specialized surgery or medications to help their bladders and urinary tract systems function as they should.
Sometimes, doctors must insert catheters or perform a vesicostomy, which is an opening in your child’s lower abdomen to allow urine to flow. At Children’s Health, our urology team can use a robot to operate in very small spaces of the body, which means a smaller incision, and a way to help children empty their bladders on their own.
Research has shown that women who take folic acid supplements or add natural folic acid to their diets can decrease risk of giving birth to a baby with spina bifida. Avoiding spinal injuries or trauma also can prevent tethered cord syndrome.
Children who have a tethered cord but no symptoms should have surgery as soon as symptoms appear, so parents and doctors should closely monitor these children. Doctors also monitor children who have had surgery because a small percentage of children who have surgery to untether a cord require a second surgery when the cord tethers again.
Some problems with the bladder related to a tethered cord cannot be prevented. Parents can watch for symptoms of neurogenic bladder and help their children follow all instructions from doctors to manage problems with controlling urination, including home instructions following surgery.
The spinal cord carries important signals to and from the brain to control muscles and functions in the body. When it is damaged, these signals are interrupted and a child can be paralyzed from the lower back down. This means movement and the sensation that helps your child control the flow of urine also is affected.
Children with a tethered cord who receive appropriate treatment can have a normal life expectancy. If they have surgery as soon as possible after tethered cord and bladder symptoms appear, they have a better chance of recovery and less of a decline in movement or bladder function.
Some children with no symptoms only need to be monitored until symptoms appear. But if your child has pain or bladder problems from a tethered cord, surgery to untether the spinal cord and to collect urine is the best option to prevent further damage and health problems. Some children have medication or physical therapy to help relieve pain from a tethered cord.
Inserting a catheter to help drain urine from your child’s bladder helps prevent urinary tract infections that can occur when urine pools in the bladder because your child has lost the sensory feelings to empty the bladder on his own. Other surgery can create a collection pouch that allows your child to empty her own bladder with little or no help, increasing independence.
Spina bifida is a birth defect that causes the spinal column and spinal cord to form incompletely or incorrectly. The improper growth can cause the cord to attach to the spinal column instead of floating freely as it should.
