title: Spondylolisthesis following a pedicle subtraction osteotomy. Case report.
abstract: Pedicle subtraction osteotomy (PSO) is a powerful technique for correcting a fixed sagittal plane deformity. The authors report the case of a 51-year-old man with a history of multiple prior lumbar operations, flat-back syndrome, thoracic kyphosis, and radiculopathy, who underwent deformity correction surgery with T3-S1 pedicle screw fixation and L-3 PSO. Progressive spondylolisthesis of the PSO segment associated with rod fracture then developed. The patient subsequently underwent anterior and posterior revision surgery. This case is a rare instance of spondylolisthesis following PSO.
authors.affiliation: Department of Neurological Surgery, University of California, San Francisco, California 94143, USA.
authors.forename: Cheerag D
authors.initials: CD
authors.lastname: Upadhyaya
authors.forename: Sigurd
authors.initials: S
authors.lastname: Berven
authors.forename: Praveen V
authors.initials: PV
authors.lastname: Mumaneni
mesh_terms: D000328:Adult; D001863:Bone Screws; D016025:Bone Transplantation; D006801:Humans; D007738:Kyphosis / Q000000981:diagnostic imaging / Q000601:surgery*; D017116:Low Back Pain / Q000601:surgery; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D019637:Orthopedic Procedures / Q000295:instrumentation* / Q000379:methods; D010027:Osteotomy / Q000009:adverse effects* / Q000379:methods; D011183:Postoperative Complications / Q000209:etiology / Q000601:surgery; D011475:Prosthesis Failure; D011542:Pseudarthrosis / Q000209:etiology / Q000601:surgery; D011843:Radiculopathy / Q000601:surgery; D011859:Radiography; D012086:Reoperation / Q000379:methods; D013123:Spinal Fusion / Q000379:methods*; D013131:Spine / Q000000981:diagnostic imaging / Q000601:surgery; D013168:Spondylolisthesis / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery*; D016896:Treatment Outcome