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Archives of Orthopaedic and Trauma Surgery

, Volume 115, Issue 3–4, pp 203–205 | Cite as

Atrophy of the nuchal muscle and change in cervical curvature after expansive open-door laminoplasty

  • Y. Fujimura
  • Y. Nishi
Clinical and Experimental Forum

Abstract

We analyzed computed tomography (CT) images and plain X-ray films of 53 patients who had undergone expansive open-door laminoplasty, in a 3-year study. The relationship between the postoperative changes in the nuchal muscles and those in the cervical curvature was investigated. On postoperative CT images, the cross-sectional area of all nuchal muscles was reduced to approximately 80% of its preoperative size. This atrophic change was especially intense in the multifidus muscle and the semispinalis cervicis muscle. Postoperative cross-sectional area of the deep nuchal muscles was reduced approximately 30% from its preoperative size. No significant correlation was found between the all cross-sectional area of the nuchal muscles and the cervical curvature. However, a weak correlation was found between the deep nuchal muscles area and the curve index (correlation coefficient 0.29).

Keywords

Compute Tomography Compute Tomography Image Weak Correlation Postoperative Change Muscle Area 
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

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Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • Y. Fujimura
    • 1
  • Y. Nishi
    • 1
  1. 1.Department of Orthopaedic Surgery, School of MedicineKeio UniversityTokyoJapan

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