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[Osteoplastic laminectomy using hydroxyapatite ceramic implants].

T Koyama, K Iwasaki, K Watanabe

    No Shinkei Geka. Neurological Surgery
    |February 1, 1986
    PubMed
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    Cervical osteoplastic laminectomy with ceramic or apatite beads effectively widened the spinal canal in 31 patients with cervical stenosis, showing good to excellent outcomes in most cases.

    Area of Science:

    • Neurosurgery
    • Orthopedic Surgery
    • Spinal Surgery

    Background:

    • Cervical bony canal stenosis can cause significant neurological deficits.
    • Degenerative changes like osteochondrosis and disc herniation are common causes.
    • Surgical intervention is often required to decompress the spinal cord and nerve roots.

    Purpose of the Study:

    • To evaluate the efficacy of cervical osteoplastic laminectomy using ceramic or apatite beads.
    • To assess the outcomes in patients with symptomatic cervical bony canal stenosis.
    • To compare the results with existing literature on laminoplasty.

    Main Methods:

    • 31 patients with cervical bony canal stenosis underwent cervical osteoplastic laminectomy.
    • Foraminotomies at C5-8 were performed, followed by en bloc laminectomy.

    Related Experiment Videos

  • Laminae were repositioned using ceramic or apatite beads to maintain canal diameter.
  • Suboccipital craniectomy and C1-2 laminectomy were performed as needed.

    • Main Results:

    • Excellent outcomes were achieved in 42% of patients.
    • Good outcomes were observed in 32% of patients.
    • Fair outcomes were noted in 13%, with 6.5% showing no change and 6.5% worsening.

    Conclusions:

    • Cervical osteoplastic laminectomy with bead interposition is an effective technique for cervical stenosis.
    • The method successfully increased the anteroposterior diameter of the bony canal.
    • This approach offers potential advantages for managing cervical canal stenosis.