Tethered Cord Syndrome

Visit our Specialty Center

What is a Tethered Spinal Cord?

A tethered spinal cord is a condition in which the spinal cord is attached to tissue in the spinal canal that limits  movement. This can happen during fetal development, or it can be due to injury following birth. 

Usually, the spinal cord moves freely within a tube called the spinal canal, which is a channel formed by the vertebral column. When the spinal cord attaches to the inside of the spinal canal, its natural movement is restricted. As a child grows, a tethered spinal cord will stretch like a rubber band and potentially result in lasting nerve damage, which may lead to the inability to walk or loss of bladder control. 

Can tethered cord syndrome go undiagnosed?

Yes, it is possible for tethered cord syndrome to go undiagnosed in mild cases. In some cases, symptoms may not be noticeable until later in life, when the spinal cord strain becomes much more significant. 

A lack of diagnosis is typically due to subtle symptoms or the condition not being considered during routine examinations.. Mild symptoms may include back pain and slight leg weakness, both of which can potentially be attributed to other causes. The delayed onset of symptoms can develop gradually over time and become more pronounced as the individual ages. Individuals with spina bifida are at a higher risk for developing tethered cord syndrome and may not be diagnosed until later in life. 

At what age does tethered cord present?

Some individuals present with tethered cord syndrome at birth, while others develop symptoms during infancy or early childhood. Some individuals may not experience any noticeable symptoms until adulthood. 

Does a tethered cord show up on MRI?

Yes, a tethered cord can be clearly seen on an MRI scan. An MRI scan is considered the primary diagnostic tool for identifying this condition. The image can identify any associated spinal cord abnormalities that may cause the tethering. 

An MRI is crucial for confirming the correct diagnosis of a tethered cord and identifying the appropriate treatment plan. 

What is a physical exam for tethered cord?

A physician’s exam for a tethered cord involves assessing key factors, including: 

• Skin inspection: Checking the lower back for dimples, skin tags, or discoloration, which may indicate spinal tethering
• Palpation: Feeling for tenderness along the spine 
• Muscle strength: Identifying any muscle weakness
• Sensory testing: Assessing legs for numbness or tingling 
• Reflex testing: Checking deep tendon reflexes in the legs
• Bowel and bladder function evaluation: Discussing any potential issues with urinary or bowel control 
• Walking pattern analysis: Observing the patient’s walking pattern to identify any abnormalities

Please note that a physical examination is often accompanied by an MRI scan for a definitive diagnosis.