These spasms occur when the muscles resist being stretched.
Spasms are common in children with brain or spinal cord injury.
If oral baclofen does not control the spasms, then the intrathecal baclofen may be given. To do this, a small pump is surgically placed in the child's mid to lower abdomen. The pump will give the baclofen continuously. The infusion system consists of a pump, an intrathecal catheter and a computer. The disc-shaped pump is 3 inches wide and 1 inch thick.