Can cauda equina syndrome with stenosis cause complete paralysis?

No: Cauda equina (tail of the horse) is just the end of the spinal cord. If there is spinal stenosis, there can be severe back and butt pain and difficulty standing up straight. There can be pinching of sacral nerves that cause pain down the leg and weakness in the feet. Sometimes bowel and bladder function can be affected. Tethering of the spinal cord may be involved. Paralysis should not occur.