3D analysis of the alignment of the lower extremity in high tibial osteotomy

Hideo Kawakami, Nobuhiko Sugano, Takashi Nagaoka, Keisuke Hagio, Kazuo Yonenobu, Hideki Yoshikawa, Takahiro Ochi, Asaki Hattori, Naoki Suzuki

研究成果

6 被引用数 (Scopus)

抄録

The alignment of the lower extremities after high tibial osteotomy (HTO) varies widely on the radiographs. It is difficult to assess the rotation change on the radiographs. We developed computer software to calculate the alignment of the lower extremities and to simulate HTO. The purpose of this study is to compare and evaluate the variance in the femoro-tibial angle (FTA) and hip-knee-ankle angle (HKA) in relation to rotational shift of the lower extremity on radiographs and to clarify how the rotational shift affects the FTA and HKA by using three-dimensional (3D) CT simulation software for HTO. The mean absolute rotation angle of the lower extremity position on radiographs was 7.8 degrees, ranging from an external rotation of 8 degrees to an internal rotation of 14 degrees. Within the same range of rotation, the mean change in the FTA was 3.7 degrees, the mean change in the HKA was 1.5 degrees.

本文言語English
ホスト出版物のタイトルMedical Image Computing and Computer-Assisted Intervention - 5th International Conference, MICCAI 2002, Proceedings
編集者Takeyoshi Dohi, Ron Kikinis
出版社Springer Verlag
ページ261-267
ページ数7
ISBN(印刷版)3540442251
DOI
出版ステータスPublished - 2002
外部発表はい
イベント5th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2002 - Tokyo, Japan
継続期間: 2002 9 252002 9 28

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2489
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

Other

Other5th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2002
国/地域Japan
CityTokyo
Period02/9/2502/9/28

ASJC Scopus subject areas

  • 理論的コンピュータサイエンス
  • コンピュータ サイエンス(全般)

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