Spondyloptosis and multiple-level spondylolysis

An unusual case of a combination of multiple bilateral spondylolyses (L2, 3 and 4), spondylolisthesis at L3/4, spondyloptosis at L4/5 and sacralizatio n of L5 in a teenage female is described. The patient had severely increasi ng lower back pain radiating to the left lower limb. Radiography identified the abnormalities and myelography revealed complete obstruction and compre ssion of the thecal sac at the L4/5 level. The case was treated surgically by posterior decompression, corpectomy and fusion in a three-stage operatio n. The follow-up was extended to 2 years with no complications. No similar case has previously been reported.