Comparison of Smith-Petersen versus pedicle subtraction osteotomy for the correction of fixed sagittal imbalance.

Study Design: Clinical, radiographic, and outcomes assessment comparing two surgical techniques. Clinical data were collected prospectively. The radiographic analysis was done retrospectively.

Long adult deformity fusions to L5 and the sacrum. A matched cohort analysis.

Study Design: A matched cohort analysis of long adult deformity fusions according to distal fusion level (L5 vs. S1). OBJECTIVE.

Late complications of adult idiopathic scoliosis primary fusions to L4 and above: the effect of age and distal fusion level.

Unlabelled: STUDY DESIGN A retrospective analysis of primary cases of adult idiopathic scoliosis treated with long instrumented fusions from the thoracic spine proximally to segments that range from T11 to L4 distally.

Objective: To analyze whether patients requiring revision surgery had lower postoperative SRS-24 scores; age >or=40 years correlated with higher rates of revision surgery; disc degeneration below the fusion occurred more commonly with a more distal lowest instrumented vertebra or older patient age (>or=40 years); and whether smokers had higher rates of major complications or revision surgery.

Summary Of Background Data: Few reports describe complications related to primary long fusions using modern 2+ rods, hook/pedicle screw instrumentation methods in the treatment of adult idiopathic scoliosis.

Thoracolumbar deformity arthrodesis to L5 in adults: the fate of the L5-S1 disc.

Study Design: A retrospective clinical and radiographic analysis of long adult deformity fusions terminating at L5.

Objectives: To define the results of thoracolumbar fusions to L5 in adult deformity patients with critical evaluation for potential subsequent L5-S1 disc degeneration and L5 implant loosening.

Summary Of Background Data: Few studies have reported the results of long adult fusions to L5 and the potential for subsequent advanced L5-S1 disc degeneration is unknown.

Staged posterior surgery for severe adult spinal deformity.

Study Design: Retrospective analysis with prospective outcomes.

Objective: To analyze the strategy of dividing one prolonged, complex, posterior surgery into two smaller posterior procedures staged during one hospitalization.

Summary Of Background Data: When operating on complex revision adult deformity, the posterior surgery alone can be unduly prolonged, placing patients at risk for hemodynamic complications associated with protracted same-day surgery.

Complications and outcomes of pedicle subtraction osteotomies for fixed sagittal imbalance.

Study Design: Radiographic analysis, outcomes analysis (pain scale, Oswestry, SRS-24), and accumulation of complications. Outcomes and complications collected prospectively. Radiographic analysis performed retrospectively.