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Related Experiment Videos

Expansive laminoplasty for multilevel cervical OPLL

T Morimoto1, T Matsuyama, H Hirabayashi

  • 1Department of Neurosurgery, Nara Medical University, Kashihara, Japan.

Journal of Spinal Disorders
|August 1, 1997
PubMed
Summary

Expansive laminoplasty effectively manages cervical ossification of the posterior longitudinal ligament (OPLL), showing significant canal expansion and high fusion rates. This surgical technique preserves most normal range of motion, improving patient outcomes.

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Area of Science:

  • Neurosurgery
  • Orthopedic Surgery
  • Spinal Surgery

Background:

  • Cervical ossification of the posterior longitudinal ligament (OPLL) is a degenerative condition.
  • Surgical decompression is often required to manage OPLL.
  • Expansive laminoplasty is an emerging surgical technique for cervical OPLL.

Purpose of the Study:

  • To evaluate the safety and efficacy of expansive laminoplasty for cervical OPLL.
  • To assess canal expansion, fusion rates, and range of motion preservation.
  • To determine long-term functional outcomes in patients undergoing expansive laminoplasty.

Main Methods:

  • A prospective study of 20 patients with cervical OPLL.
  • Patients underwent expansive laminoplasty.

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  • Follow-up included clinical assessments and imaging (radiographs, CT) every 3 months and annually for an average of 3 years.

    • Main Results:

    • Average increase in canal diameter of 42% on lateral radiographs.
    • 96% bone fusion rate documented by CT at 3 months post-surgery.
    • Average 83% of normal range of motion preserved at 3-year follow-up.
    • Significant improvement in Japanese Orthopaedic Association scores from 7.9 preoperatively to 14.1 postoperatively.

    Conclusions:

    • Expansive laminoplasty is a safe and effective surgical option for cervical OPLL.
    • The procedure achieves high fusion rates and excellent canal decompression.
    • Expansive laminoplasty effectively preserves spinal mobility, leading to improved functional outcomes.