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Measurement of femoral axial offset

Purpose to examine the accuracy and reproducibility of the femoral axial offset measured from the retrocondylar plane by computed tomography (CT). Bone specimens of the femur of 15 males and 15 females were analyzed. CT imaging was performed and data of the coordinates were collected (center of femo...

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Autores principales: Matsubayashi, Shohei, Isobe, Yuusaku, Chiba, Ko, Tsujimoto, Ritsu, Osaki, Makoto, Imamura, Takeshi, Tsurumoto, Toshiyuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8359377/
https://www.ncbi.nlm.nih.gov/pubmed/32876948
http://dx.doi.org/10.1002/jor.24843
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author Matsubayashi, Shohei
Isobe, Yuusaku
Chiba, Ko
Tsujimoto, Ritsu
Osaki, Makoto
Imamura, Takeshi
Tsurumoto, Toshiyuki
author_facet Matsubayashi, Shohei
Isobe, Yuusaku
Chiba, Ko
Tsujimoto, Ritsu
Osaki, Makoto
Imamura, Takeshi
Tsurumoto, Toshiyuki
author_sort Matsubayashi, Shohei
collection PubMed
description Purpose to examine the accuracy and reproducibility of the femoral axial offset measured from the retrocondylar plane by computed tomography (CT). Bone specimens of the femur of 15 males and 15 females were analyzed. CT imaging was performed and data of the coordinates were collected (center of femoral head, center of an ellipse around greater trochanter, center of an ellipse around the base of femoral neck, posterior edge of great trochanter, and both posterior condyles). The angle between the line connecting center of the femoral head and center of an ellipse around greater trochanter and the line connecting both posterior condyles was set as anteversion 1. The angle between the line connecting the center of femoral head and center of an ellipse around base of the femoral neck and the line connecting both posterior condyles was set as anteversion 2. The femoral axial offset was measured from the retrocondylar plane. Measurements were performed three times on the same subject, and intrarater reliability (ICC) was determined. In addition, interrater reliability (ICC) was determined by comparing data from three raters. The mean value for anteversion 1 was 20.1° for males and 22.7° for females. The values for anteversion 2 were 16.0° and 19.9° for males and females, respectively. Offset was 34.0 and 33.4 mm in males and females, respectively. Intrarater ICC and interrater ICC exceeded 0.81 for both methods, suggesting that the method of measurement was reliable. Accuracy and reproducibility of the measurement of femoral axial offset from the retrocondylar plane were high.
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spelling pubmed-83593772021-08-17 Measurement of femoral axial offset Matsubayashi, Shohei Isobe, Yuusaku Chiba, Ko Tsujimoto, Ritsu Osaki, Makoto Imamura, Takeshi Tsurumoto, Toshiyuki J Orthop Res Research Articles Purpose to examine the accuracy and reproducibility of the femoral axial offset measured from the retrocondylar plane by computed tomography (CT). Bone specimens of the femur of 15 males and 15 females were analyzed. CT imaging was performed and data of the coordinates were collected (center of femoral head, center of an ellipse around greater trochanter, center of an ellipse around the base of femoral neck, posterior edge of great trochanter, and both posterior condyles). The angle between the line connecting center of the femoral head and center of an ellipse around greater trochanter and the line connecting both posterior condyles was set as anteversion 1. The angle between the line connecting the center of femoral head and center of an ellipse around base of the femoral neck and the line connecting both posterior condyles was set as anteversion 2. The femoral axial offset was measured from the retrocondylar plane. Measurements were performed three times on the same subject, and intrarater reliability (ICC) was determined. In addition, interrater reliability (ICC) was determined by comparing data from three raters. The mean value for anteversion 1 was 20.1° for males and 22.7° for females. The values for anteversion 2 were 16.0° and 19.9° for males and females, respectively. Offset was 34.0 and 33.4 mm in males and females, respectively. Intrarater ICC and interrater ICC exceeded 0.81 for both methods, suggesting that the method of measurement was reliable. Accuracy and reproducibility of the measurement of femoral axial offset from the retrocondylar plane were high. John Wiley and Sons Inc. 2020-09-09 2021-07 /pmc/articles/PMC8359377/ /pubmed/32876948 http://dx.doi.org/10.1002/jor.24843 Text en © 2020 The Authors. Journal of Orthopaedic Research® published by Wiley Periodicals LLC on behalf of Orthopaedic Research Society https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ (https://creativecommons.org/licenses/by-nc-nd/4.0/) License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
spellingShingle Research Articles
Matsubayashi, Shohei
Isobe, Yuusaku
Chiba, Ko
Tsujimoto, Ritsu
Osaki, Makoto
Imamura, Takeshi
Tsurumoto, Toshiyuki
Measurement of femoral axial offset
title Measurement of femoral axial offset
title_full Measurement of femoral axial offset
title_fullStr Measurement of femoral axial offset
title_full_unstemmed Measurement of femoral axial offset
title_short Measurement of femoral axial offset
title_sort measurement of femoral axial offset
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8359377/
https://www.ncbi.nlm.nih.gov/pubmed/32876948
http://dx.doi.org/10.1002/jor.24843
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