Due to a deficiency of padding, vertebrae bones slip and rub together. this may lead to excruciating and disabling pain, And may cause sciatica (Leg soreness) Due to air pressure on the sciatic nerve in cramping, Pain and numbness along the spine and back of the thigh.at present, doctor. Roger they would rtl, Director of the spine program at NewYork Presbyterian Hospital/Weill Cornell infirmary and assistant professor of neurological surgery at Weill Cornell Medical College, Is using a new and less invasive function