What is SDR?

A Selective Dorsal Rhizotomy is a major spinal procedure. We've found that the most comprehensive and accessible is provided by the fantastic charity Scope. Here is a description of SDR from the Scope website for more information on SDR, its history and potential. 

What is SDR?

Selective Dorsal Rhizotomy is a neurosurgical procedure aimed at reducing spasticity (tight and stiff muscle tone) in the lower limbs. It is most commonly used for children with spastic diplegia (two limbs affected) which accounts for 25-30% of children born with cerebral palsy. 

What can SDR achieve?

The surgery aims to:

• achieve a long-term reduction in spasticity
• improve function and mobility
• increase independence
• increase range of motion and improve positioning

How is the operation carried out?

Selective Dorsal Rhizotomy (SDR) is a kind of surgery where the bones of the spine (vertebrae) in the lower back area are opened to reveal the conus (the end of the spinal cord) and to gain access to the nerve roots. The abnormal nerve roots causing the spasticity are identified by electrical stimulation. The nerves not "transmitting" effectively are partially cut. Due to the size of the nerves, this is a complex, precise procedure with surgery lasting several hours.

What happens after the operation?

For SDR to be effective, it is vital that intensive physiotherapy is available and commences as soon as your child is mobilised. In the UK and with the single-level approach, patients are usually hospitalised for up to four weeks. This enables them to have this initial physiotherapy before discharge. Ongoing physiotherapy and home exercise programmes can be required for up to two years. Without physiotherapy, SDR surgery will prove ineffective.