The problem of chronic spondylitic spinal disease is markedly underrep
resented in the literature. The principal focus is on procedures and d
iagnostic techniques. It has been suggested that the classic clinical
syndromes are rare and that interventional protocols based on them are
likely to be inadequate. New diagnostic techniques have revolutionize
d the evaluation of patients: magnetic resonance imaging is now the st
andard whereas myelography use is being steadily reduced. It is clear
that the outcome of spinal surgery for herniated disk, in expert hands
, is excellent. Nevertheless, there is an emphasis on minimally invasi
ve and percutaneous techniques to try to avoid major surgery, which ha
s been the standard. The natural history of these problems is still un
derstood incompletely. Long-term follow-ups are generally not availabl
e and the value of nearly every form of conservative care remains unpr
oven.