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Controlled Pedicle Subtraction Osteotomy Site Closure Using Flexible Hinge-Powered Operating Table.

Kristen E Jones1, Matthew A Hunt1, Christopher T Martin2

  • 1Department of Neurosurgery, University of Minnesota, Minneapolis, Minnesota.

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Summary
This summary is machine-generated.

A novel flexible hinge-powered operating table allows for controlled, incremental closure of pedicle subtraction osteotomy (PSO), reducing the risk of neurological injury during spinal deformity correction.

Keywords:
PSOPedicle subtraction osteotomySpinal osteotomy

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Area of Science:

  • Spine surgery
  • Orthopedic surgery
  • Surgical innovation

Background:

  • Pedicle subtraction osteotomy (PSO) corrects severe sagittal spinal deformities but poses risks of neurological deficits due to intraoperative instability.
  • Traditional PSO closure methods use forces on adjacent instrumentation, risking implant loosening, subluxation, or translation.
  • A 68-year-old male with prior fusion presented with rigid sagittal malalignment (PI-LL mismatch of 42°), necessitating revision fusion with L4 PSO.

Observation:

  • A flexible hinge-powered operating table was utilized for PSO closure.
  • The table enabled remote-controlled, 1-degree incremental closure of the PSO site.
  • This method avoided compression or cantilevering forces across adjacent spinal implants.

Findings:

  • The flexible hinge-powered table facilitated controlled PSO closure without applying stress to implants.
  • Vertebral body subluxation and translation during osteotomy closure were minimized.
  • This technique offers a safer approach to PSO closure compared to traditional methods.

Implications:

  • This innovative technique enhances the safety and control of pedicle subtraction osteotomy.
  • It significantly reduces the risk of neurological injury associated with spinal deformity correction.
  • The use of a flexible hinge-powered table represents a potential advancement in managing complex spinal deformities.