Normal coronal kinematics of dynamic alignment and bony positions relative to the ground in three-dimensional motion analysis during gait: A preliminary study
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Le résumé fourni par la source
BACKGROUND: During gait, healthy knee coronal kinematics of each bony axis and lower extremity alignment are important because they could be useful as reference data for several surgeries and provide clarification of the etiology of diseases around the knee in healthy participants; however, it remains unknown. OBJECTIVE: The objective of this study was to clarify the kinematics of lower extremity alignment and the bony axes relative to the ground during gait, focused on the coronal plane, in healthy individuals by applying our unique three-dimensional (3D) motion analysis. METHODS: The study included 21 healthy individuals, including 9 healthy females and 12 healthy males with an average age of 36 ± 17 years. Knee kinematics were calculated in a gait analysis by combining the data from a motion-capture system and a 3D lower-extremity alignment assessment system on biplanar long-leg radiographs by using a 3D-2D registration technique. The main kinematic parameters were the dynamic position change relative to the ground, applying the femoral anatomical axis (FAA), tibial anatomical axis (TAA), and dynamic alignment in the coronal plane during the stance phase of gait. RESULTS: The average changes in FAA, TAA, and dynamic varus alignment were 3.7° ± 1.2°, 3.5° ± 0.8°, and 3.0° ± 1.2°, respectively. The TAA tilted laterally during the loading response and a plateau area appeared afterwards; the FAA gradually inclined laterally until the terminal stance phase, and the dynamic alignment showed varus angular change during the loading response. CONCLUSIONS: The tibia and femur were found to change approximately 2-5° of the position of the bony axes relative to the ground. In terms of clinical relevance, our findings can be used to clarify the etiology of diseases around the knee joint and as reference data for surgeries.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Normal coronal kinematics of dynamic alignment and bony positions relative to the ground in three-dimensional motion analysis during gait: A preliminary study
- Date Crossref
- 11/01/2023
- Éditeur
- SAGE Publications
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Niigata University of Rehabilitation pays non établi dans la noticeUniversité ou école supérieure
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Niigata University Department of Regenerative and Transplant Medicine pays non établi dans la noticeUniversité ou école supérieure
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Japan Sport Council pays non établi dans la noticeInstitution
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Niigata University of Health and Welfare pays non établi dans la noticeUniversité ou école supérieure
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Misasa Onsen Hospital pays non établi dans la noticeÉtablissement de santé
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Niigata Rehabilitation Hospital Department of Orthopaedic Surgery pays non établi dans la noticeÉtablissement de santé
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Niigata Institute for Health and Sports Medicine pays non établi dans la noticeStructure de recherche
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Faculty of Health Sciences Department of Health and Sports pays non établi dans la noticeUniversité ou école supérieure
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Nioji Onsen Hospital pays non établi dans la noticeÉtablissement de santé
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E-mail: pays non établi dans la noticeInstitution
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Fax: +81 25 227 0782 pays non établi dans la noticeInstitution
Niigata University of Rehabilitation, Department of Regenerative and Transplant Medicine — Niigata University et Japan Sport Council, avec 8 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.