Realignment of postoperative cervical kyphosis in children by vertebral remodeling

Yoshiaki Toyama, Morio Matsumoto, Kazuhiro Chiba, Takashi Asazuma, Nobumasa Suzuki, Yoshikazu Fujimura, Kiyoshi Hirabayashi

研究成果: Article査読

75 被引用数 (Scopus)

抄録

Study Design. This study analyzed radiographically change in the sagittal curvature of the cervical spine after atlantoaxial (C1-C2) posterior fusion In children. Objectives. The study clarified the process of spinal remodeling after postoperative cervical deformation In children. Summary of Background data. Postoperative! spinal deformations in children are observed frequently. However, there have been only a few reports on postoperative changes in the sagittal curvature of the cervical spine and spinal remodeling after those changes. Methods. Between 1979 and 1991, there was a total of 12 children who underwent C1-C2 posterior fusions, The average age at the time of surgery was 9.8 years. The alignment of the cervical spine was classified into four roups (lordosis, straight, kypnosis, and swan-neck deformity). Radiographic findings suggestive of the remodelling were as follows: It new bone formation on the anterior vertebral cortex, and 2) increase in body/ canal ratio (BCH). The follow-up period averaged fi.2 years. Results. Postoperative cervical malalignment (kyphosis Or swan-neck deformity) occurred In four patients. In all four patients, new bone formation and increase in BCR at the apex of kyphosis were observed, Therefore, there was gradual improvement of the malalignment by vertebral remodeling. This phenomenon was not observed in eight patients with normal alignment. Conclusion. Realignment of postoperative cervical kyphosis by vertebral remodeling was observed In children. The results of this study suggested that remodeling occurred oven in the Spine, which was similar to the remodeling in long bones.

本文言語English
ページ(範囲)2565-2570
ページ数6
ジャーナルSpine
19
22
出版ステータスPublished - 1994 11月

ASJC Scopus subject areas

  • 整形外科およびスポーツ医学
  • 臨床神経学

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