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Midline Spinous Process Splitting Laminoplasty Using Hydroxyapatite Spacers

  • Kazumasa Ueyama
  • Seiko Harata
  • Akihiro Okada
  • Naoki Echigoya
  • Toru Yokoyama
Chapter

Abstract

Posterior decompression and reconstruction of the cervical spinal canal is a common treatment for cervical myelopathy. Since laminoplasty by midline splitting of the spinous processes was reported by Kurokawa in 1982 [1], we have used this method to treat cervical myelopathy due to spondylotic changes or ossification of the posterior longitudinal ligament (OPLL). Since 1986, we have used hydroxyapatite (HA) interspinous spacers instead of an iliac bone graft to maintain the enlargement of the cervical spinal canal [2]. There have been no problems with dislocation of the HA spacers, and good fusion has been achieved. The use of HA spacers eliminates the problems of buttock pain caused by harvesting autogenous bone from the posterior ilium. It also shortens the operating time,reduces intraoperative blood loss, and improves the range of motion below C2/3. Since 1995, we have also used a wire thread saw (T-saw) instead of an airtome for the splitting process.

Keywords

Spinous Process Cervical Myelopathy Cervical Lordosis Epidural Needle Iliac Bone Graft 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Kurokawa T, Tsuyama N, Tanaka H, et al. (1982) Enlargement of spinal canal by sagittal splitting of the spinous process (in Japanese). Bessatsu Seikeigeka 2:234–240Google Scholar
  2. 2.
    Nakano K, Harata S, Suetsuna F, et al. (1992) Spinous process-splitting laminoplasty using hydroxyapatite spinous process spacer. Spine 17:S41–S43PubMedCrossRefGoogle Scholar
  3. 3.
    Yonenobu K, Yamamoto T, Ono K (1998) Laminoplasty for myelopathy. LippincottRaven, Philadelphia, pp 849–864Google Scholar

Copyright information

© Springer Japan 2003

Authors and Affiliations

  • Kazumasa Ueyama
    • 1
  • Seiko Harata
    • 1
  • Akihiro Okada
    • 1
  • Naoki Echigoya
    • 1
  • Toru Yokoyama
    • 1
  1. 1.Department of Orthopedic SurgeryHirosaki UniversityHirosakiJapan

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