In general, complete spinal cord injuries are often permanent, while incomplete spinal cord injuries may allow some functional improvement. This is because a complete spinal cord injury directly damages the nerves that send signals to the brain that control many human functions.
As a result, even with the modern technology and advanced medical treatments we have today, doctors cannot fully heal all of these wounds. At times, medicine can help alleviate pain and help these individuals lead productive and independent lives, but many of these spinal cord injuries will remain permanent.