Juxta facet cysts of the lumbar spine.

: The author reports on experiences in the operative treatment of juxta facet cysts of the lumbar spine. 5 cases are presented in which juxta facet cysts, causing radicular syndromes, had been successfully resected by microneurosurgery. Pathogenesis of those cysts in the course of progressive lumbar spine degeneration, especially degenerative segmental lumbar instability, is discussed.