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Spinal Cord Detethering is a delicate neurosurgical procedure performed to release a tethered spinal cord, a condition where the spinal cord is abnormally attached to surrounding tissues. This attachment can restrict spinal cord movement, leading to stretching, neurological symptoms, and long-term damage.

The procedure involves making a small incision in the back to access the spinal cord, identifying the point of tethering, and carefully separating the cord from the structures causing the restriction.

It is typically performed under general anaesthesia and may utilise advanced tools, such as microscopes or neuronavigation systems, to ensure precision. The goal is to relieve tension in the spinal cord, prevent further neurological deterioration, and improve quality of life.

Spinal cord detethering is a surgical procedure to release a spinal cord that is abnormally attached to surrounding tissues, preventing normal movement and causing progressive nerve damage. It treats both congenital (e.g., spina bifida) and acquired (e.g., scarring from surgery or trauma) causes. The goal is to relieve tension on the spinal cord, reduce symptoms like pain, weakness, or bladder issues, and prevent further neurological decline.

Consult a neurosurgeon or spine specialist if you or your child experiences:

Back or leg pain
Numbness, tingling, or weakness in the legs
Gait abnormalities
Loss of bladder or bowel control
Progressive scoliosis or foot deformities
Worsening symptoms after previous spinal surgery

Early intervention is crucial for preventing irreversible nerve damage, especially in children or when symptoms are worsening.

Preparation includes:

Neurological examination
MRI or CT scan of the spine to assess the tethering and related anomalies
Urodynamic testing (if bladder symptoms are present)
Review of medications, especially blood thinners
Fasting for 6–8 hours before surgery
Detailed discussion of surgical risks, recovery expectations, and long-term monitoring needs

In pediatric cases, consultation with a pediatric neurosurgeon and an anesthesiologist may also be required.

Spinal cord detethering is performed under general anaesthesia. The steps include:

A small incision is made over the lower back (usually at the lumbar or sacral level)
The surgeon opens the spinal canal to expose the tethered cord
The abnormal attachments (scar tissue, fatty filum, or other adhesions) are carefully released to free the spinal cord
If necessary, microsurgical techniques and intraoperative monitoring are used to protect nerve function
The dura (spinal covering) is closed tightly to prevent cerebrospinal fluid leakage

The goal is to relieve tension, restore mobility of the cord, and preserve neurological function.

The surgery typically takes 2 to 4 hours, depending on the complexity and presence of associated abnormalities. Hospital stays usually range from 2 to 5 days for monitoring and early recovery.

Potential risks include:

Infection
Bleeding
Cerebrospinal fluid leak
Nerve injury
Paralysis or sensory changes (rare)
Re-tethering over time, which may require repeat surgery
Bladder or bowel function changes

Utilising experienced neurosurgical care and monitoring significantly reduces complication risks.

Relief from neurological symptoms such as pain, weakness, and sensory issues
Improved or stabilised bladder and bowel function
Prevention of further spinal cord damage
Improved mobility and posture, especially in children
May slow or stop scoliosis progression

Early surgical treatment often results in better long-term outcomes, particularly in younger patients.

Patients are typically monitored for a few days post-surgery. Pain and stiffness at the incision site are common. Limited activity is advised for several weeks to allow healing. Physical therapy may be recommended to regain strength and mobility. Full recovery generally takes 4–8 weeks, but some neurological symptoms may take longer to improve. Follow-up imaging and regular neurological exams are important to monitor for potential re-tethering.

Spinal cord detethering has a high success rate for symptom stabilisation and improvement, primarily when performed early. Around 70–90% of patients experience relief from symptoms, although re-tethering can occur in up to 30% of cases, often requiring further monitoring or intervention.