retrospondylolisthesis

ret·ro·spon·dy·lo·lis·the·sis

(ret'rō-spon'di-lō-lis-thē'sis),
Slipping posteriorly of the body of a vertebra, bringing it out of line with the adjacent vertebrae.
[retro- + G. spondylos, vertebra, + olisthēsis, a slipping]

ret·ro·spon·dy·lo·lis·the·sis

(ret'rō-spon'di-lō-lis-thē'sis)
Slipping posteriorly of the body of a vertebra, bringing it out of line with the adjacent vertebrae.
[retro- + G. spondylos, vertebra, + olisthēsis, a slipping]

retrospondylolisthesis

(rĕt″rō-spŏn″dĭ-lō-lĭs-thē′sĭs) [L. retro, behind + Gr. spondylos, vertebra, + olisthesis, a slipping]
The posterior displacement of a vertebra.