A modified method for measuring the calcaneal moment arm on weight-bearing computed tomography

Objective: This study introduced a modified weight-bearing computed tomography to measure the calcaneal moment arm (WBCTCMA) and compared the CMA values between the original and modified techniques. Methods:  The WBCT scans of 10 healthy feet were loaded in the CubeVue software, correctly oriented...

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Main Authors: Mingjie Zhu1, Sera Sempson, Wanjun Gu, Chao Wang, Songmin Sun, Kenneth J Hunt, Mark S Myerson, Shuyuan Li
Format: Article
Language:English
Published: Associação Brasileira de Medicina e Cirurgia do Tornozelo e Pé - ABTPé 2024-12-01
Series:Journal of the Foot & Ankle
Online Access:https://jfootankle.com/JournalFootAnkle/article/view/1805
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author Mingjie Zhu1
Sera Sempson
Wanjun Gu
Chao Wang
Songmin Sun
Kenneth J Hunt
Mark S Myerson
Shuyuan Li
author_facet Mingjie Zhu1
Sera Sempson
Wanjun Gu
Chao Wang
Songmin Sun
Kenneth J Hunt
Mark S Myerson
Shuyuan Li
author_sort Mingjie Zhu1
collection DOAJ
description Objective: This study introduced a modified weight-bearing computed tomography to measure the calcaneal moment arm (WBCTCMA) and compared the CMA values between the original and modified techniques. Methods:  The WBCT scans of 10 healthy feet were loaded in the CubeVue software, correctly oriented in the transverse plane. Instead of using a specific single coronal cut of the tibia, as in the original WBCT-CMA method, the modified method includes the full thickness of the tibia in the coronal plane to better define the tibia axis. The CMA of each foot was evaluated using both methods. Intraclass correlation coefficient (ICC) model was used to assess the intra- and interobserver reliabilities of both techniques. Results: There was no statistically significant difference between the CMA values generated from the two measurement techniques (p = 0.99). Both methods demonstrated excellent intra- and interobserver reliabilities (0.93 and 0.97 for the modified WBCT-CMA, and 0.93 and 0.94 for the original WBCT-CMA). Conclusion: The modified WBCT-CMA is equivalent to the original WBCT-CMA in both intra- and interobserver reliabilities. Instead of using a relatively shorter tibia from one specific single cut, as in the original technique, the modified WBCT-CMA provides a reconstructed tibia with a longer and clearer shaft for measurement. This has the potential advantages of being easy to perform and less time-consuming, also reducing errors. Level of Evidence III; Retrospective comparative study.
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institution Kabale University
issn 2675-2980
language English
publishDate 2024-12-01
publisher Associação Brasileira de Medicina e Cirurgia do Tornozelo e Pé - ABTPé
record_format Article
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spelling doaj-art-d81f81755dbb4bf8982b3982d85355762024-12-20T19:54:39ZengAssociação Brasileira de Medicina e Cirurgia do Tornozelo e Pé - ABTPéJournal of the Foot & Ankle2675-29802024-12-0118310.30795/jfootankle.2024.v18.1805A modified method for measuring the calcaneal moment arm on weight-bearing computed tomographyMingjie Zhu1 0Sera Sempson1https://orcid.org/0009-0008-7113-6032Wanjun Gu2Chao Wang 3Songmin Sun4Kenneth J Hunt 5Mark S Myerson6Shuyuan Li7https://orcid.org/0000-0002-9685-4048University of Colorado School of Medicine, Aurora, Colorado, USAUniversity of Colorado School of Medicine, Aurora, Colorado, USAUniversity of California San Francisco, California, United StatesCapital Medical University Affiliated Beijing Tongren Hospital, Beijing, ChinaCapital Medical University Affiliated Beijing Tongren Hospital, Beijing, China University of Colorado School of Medicine, Aurora, Colorado, USA University of Colorado School of Medicine, Aurora, Colorado, USA University of Colorado School of Medicine, Aurora, Colorado, USA Objective: This study introduced a modified weight-bearing computed tomography to measure the calcaneal moment arm (WBCTCMA) and compared the CMA values between the original and modified techniques. Methods:  The WBCT scans of 10 healthy feet were loaded in the CubeVue software, correctly oriented in the transverse plane. Instead of using a specific single coronal cut of the tibia, as in the original WBCT-CMA method, the modified method includes the full thickness of the tibia in the coronal plane to better define the tibia axis. The CMA of each foot was evaluated using both methods. Intraclass correlation coefficient (ICC) model was used to assess the intra- and interobserver reliabilities of both techniques. Results: There was no statistically significant difference between the CMA values generated from the two measurement techniques (p = 0.99). Both methods demonstrated excellent intra- and interobserver reliabilities (0.93 and 0.97 for the modified WBCT-CMA, and 0.93 and 0.94 for the original WBCT-CMA). Conclusion: The modified WBCT-CMA is equivalent to the original WBCT-CMA in both intra- and interobserver reliabilities. Instead of using a relatively shorter tibia from one specific single cut, as in the original technique, the modified WBCT-CMA provides a reconstructed tibia with a longer and clearer shaft for measurement. This has the potential advantages of being easy to perform and less time-consuming, also reducing errors. Level of Evidence III; Retrospective comparative study. https://jfootankle.com/JournalFootAnkle/article/view/1805
spellingShingle Mingjie Zhu1
Sera Sempson
Wanjun Gu
Chao Wang
Songmin Sun
Kenneth J Hunt
Mark S Myerson
Shuyuan Li
A modified method for measuring the calcaneal moment arm on weight-bearing computed tomography
Journal of the Foot & Ankle
title A modified method for measuring the calcaneal moment arm on weight-bearing computed tomography
title_full A modified method for measuring the calcaneal moment arm on weight-bearing computed tomography
title_fullStr A modified method for measuring the calcaneal moment arm on weight-bearing computed tomography
title_full_unstemmed A modified method for measuring the calcaneal moment arm on weight-bearing computed tomography
title_short A modified method for measuring the calcaneal moment arm on weight-bearing computed tomography
title_sort modified method for measuring the calcaneal moment arm on weight bearing computed tomography
url https://jfootankle.com/JournalFootAnkle/article/view/1805
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