TY - GEN
T1 - 3D analysis of the alignment of the lower extremity in high tibial osteotomy
AU - Kawakami, Hideo
AU - Sugano, Nobuhiko
AU - Nagaoka, Takashi
AU - Hagio, Keisuke
AU - Yonenobu, Kazuo
AU - Yoshikawa, Hideki
AU - Ochi, Takahiro
AU - Hattori, Asaki
AU - Suzuki, Naoki
N1 - Publisher Copyright:
© Springer-Verlag Berlin Heidelberg 2002.
PY - 2002
Y1 - 2002
N2 - 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.
AB - 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.
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U2 - 10.1007/3-540-45787-9_33
DO - 10.1007/3-540-45787-9_33
M3 - Conference contribution
AN - SCOPUS:84944049818
SN - 3540442251
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 261
EP - 267
BT - Medical Image Computing and Computer-Assisted Intervention - 5th International Conference, MICCAI 2002, Proceedings
A2 - Dohi, Takeyoshi
A2 - Kikinis, Ron
PB - Springer Verlag
T2 - 5th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2002
Y2 - 25 September 2002 through 28 September 2002
ER -