Possible causes are: Degenerative Myelopathy, meningomyelitis, diskospondylitis, hemivertebra, neoplasms (tumors), cysts, fibrocartilaginous embolism (secondary to fractures), aortic tromboembolism, hyperadrenocorticism or Cushing Syndrome,… as you can see the causes are diverse and some of them quite serious, so it's ...