ABSTRACT
Disk lesions at L4-5 or L5-S1 are traditionally held responsible for low back pain. The role of the facet joints was considered for a long time to be insignificant, but it seems now to be a major question. Certain authors consider ligamentous or muscular origins to be possible sources of pain, but most frequently, it seems that low back pain is the consequence of
a painful minor intervertebral dysfunction
affecting one of the inferior lumbar segments.
