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The AO spinal internal fixator.

S I Esses1

  • 1Department of Surgery, University of Toronto, Ontario, Canada.

Spine
|April 1, 1989
PubMed
Summary
This summary is machine-generated.

The AO spinal internal fixation system offers excellent results for spinal fractures, enabling canal decompression and lordosis restoration. It provides rigid stabilization for various spinal disorders.

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Area of Science:

  • Orthopedics
  • Spinal Surgery
  • Biomedical Engineering

Background:

  • The AO spinal internal fixation system, featuring 5.0 mm transpedicular Schanz screws and 7.0 mm rods, was initially designed for thoracolumbar and lumbar spine fractures.
  • This system's versatility allows its application in managing a broader spectrum of spinal conditions.

Purpose of the Study:

  • To evaluate the efficacy and outcomes of the AO spinal internal fixation system in a diverse patient cohort.
  • To assess the system's performance in treating spinal fractures and other degenerative or traumatic spinal disorders.

Main Methods:

  • A prospective study was conducted involving the first 48 patients treated with the AO spinal internal fixation system.
  • Clinical outcomes were reviewed, focusing on fracture treatment, canal decompression, lordosis restoration, and spondylolisthesis management.

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Main Results:

  • Excellent outcomes were observed in patients treated for spinal fractures.
  • Successful canal decompression and lordosis restoration were achieved in burst fractures.
  • Improvement in the degree of slip was noted in approximately 50% of spondylolisthesis cases.
  • The system provided rigid stabilization across various spinal pathologies.

Conclusions:

  • The AO spinal internal fixation system demonstrates excellent efficacy in treating spinal fractures.
  • The system offers reliable rigid stabilization for a range of spinal disorders, including complex fracture patterns.
  • While effective for fractures, its impact on spondylolisthesis reduction is moderate, warranting further investigation.