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Related Experiment Videos

Anterior dynamic plates in complex cervical reconstructive surgeries.

Nancy E Epstein1

  • 1Department of Neurosurgery, Albert Einstein College of Medicine, Bronx, New York, U.S.A. nepstein@lineurosurg.com

Journal of Spinal Disorders & Techniques
|July 20, 2002
PubMed
Summary
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Dynamic plates show a 7% failure rate in one-level anterior cervical corpectomy and fusion (ACF). Multilevel ACF with posterior wiring and fusion (PWF) demonstrated 0% failure, suggesting improved outcomes for complex cases.

Area of Science:

  • Spine surgery
  • Orthopedic biomechanics
  • Medical device evaluation

Background:

  • Anterior cervical corpectomy with fusion (ACF) is a common spinal procedure.
  • Dynamic plates offer controlled motion but their efficacy in ACF needs evaluation.
  • Morbid obesity is a risk factor for spinal fusion complications.

Purpose of the Study:

  • To assess the efficacy of dynamic anterior cervical plates in one-level ACF.
  • To evaluate dynamic plates in multilevel ACF with posterior wiring and fusion (PWF).
  • To identify potential risk factors for dynamic plate failure.

Main Methods:

  • Dynamic plates (ABC Aesculap) were used in 28 patients for one-level ACF (C5-7).
  • Dynamic plates were applied in 20 patients for multilevel ACF/PWF.

Related Experiment Videos

  • Plate migration allowance was 10 mm cephalad and 10 mm caudad.

    • Main Results:

    • A 7% failure rate (2 of 28 plates) was observed in one-level ACF.
    • Failures included one pseudarthrosis and one plate extrusion, both in morbidly obese patients.
    • No failures occurred in the multilevel ACF/PWF group (0 of 20 plates).

    Conclusions:

    • Dynamic plates have a notable failure rate in one-level ACF, particularly in morbidly obese patients.
    • Multilevel ACF/PWF with halo immobilization shows promising 0% failure.
    • Consideration of PWF with halo stabilization for morbidly obese patients undergoing one-level ACF may prevent plate-related complications.