The impact of body-mass index on the frontal knee alignment estimation using three-dimensional reconstruction based on movement analysis.
- Legrand T Department of Kinesiology, Medicine Faculty, Laval University, Quebec, Quebec, Canada; Center for Interdisciplinary Research in Rehabilitation and Social Integration, Quebec, Quebec, Canada.
- Richard V Department of Kinesiology, Medicine Faculty, Laval University, Quebec, Quebec, Canada; Center for Interdisciplinary Research in Rehabilitation and Social Integration, Quebec, Quebec, Canada.
- Bonnefoy-Mazure A Willy Taillard Laboratory of Kinesiology, Geneva University Hospitals, Geneva University, Geneva, Switzerland; Division of Orthopaedics and Trauma Surgery, Geneva University Hospitals, Faculty of Medicine, Geneva, Switzerland.
- Armand S Willy Taillard Laboratory of Kinesiology, Geneva University Hospitals, Geneva University, Geneva, Switzerland; Division of Orthopaedics and Trauma Surgery, Geneva University Hospitals, Faculty of Medicine, Geneva, Switzerland.
- Miozzari HH Division of Orthopaedics and Trauma Surgery, Geneva University Hospitals, Faculty of Medicine, Geneva, Switzerland.
- Turcot K Department of Kinesiology, Medicine Faculty, Laval University, Quebec, Quebec, Canada; Center for Interdisciplinary Research in Rehabilitation and Social Integration, Quebec, Quebec, Canada. Electronic address: katia.turcot@kin.ulaval.ca.
- 2019-12-25
Published in:
- The Knee. - 2020
3D static analysis
Body-mass index
Frontal alignment
Knee
Obese
Osteoarthritis
Body Mass Index
Humans
Imaging, Three-Dimensional
Knee Joint
Movement
Osteoarthritis, Knee
Radiography
Range of Motion, Articular
Weight-Bearing
English
BACKGROUND
We evaluated the influence of the body-mass index (BMI) on the estimation of the static frontal knee alignment (FKA) using three-dimensional (3D) reconstruction method based on movement analysis.
METHODS
Two-hundred nineteen knees (120 individuals with end-stage osteoarthritis) were analyzed. The validity of the 3D method was evaluated under comparison with a reference method based on weight bearing full-leg length radiography. Extensive statistical analyses (Pearson's correlation, one-way ANOVA, linear regression, boxplot diagram) over four groups of BMI (normal, overweight, obese class I and obese classes II and III) were performed.
RESULTS
For BMI below 25 kg/m2, the validity of the 3D method was confirmed. For BMI over 25 kg/m2, there was an increasing error of the 3D method, especially for the obese groups affected with a large varus alignment.
CONCLUSIONS
In a biomechanical context of movement analysis, the results of the study suggest that the 3D method may represent a satisfying alternative to the full-leg radiograph method with limitations regarding to BMI over 25 kg/m2.
We evaluated the influence of the body-mass index (BMI) on the estimation of the static frontal knee alignment (FKA) using three-dimensional (3D) reconstruction method based on movement analysis.
METHODS
Two-hundred nineteen knees (120 individuals with end-stage osteoarthritis) were analyzed. The validity of the 3D method was evaluated under comparison with a reference method based on weight bearing full-leg length radiography. Extensive statistical analyses (Pearson's correlation, one-way ANOVA, linear regression, boxplot diagram) over four groups of BMI (normal, overweight, obese class I and obese classes II and III) were performed.
RESULTS
For BMI below 25 kg/m2, the validity of the 3D method was confirmed. For BMI over 25 kg/m2, there was an increasing error of the 3D method, especially for the obese groups affected with a large varus alignment.
CONCLUSIONS
In a biomechanical context of movement analysis, the results of the study suggest that the 3D method may represent a satisfying alternative to the full-leg radiograph method with limitations regarding to BMI over 25 kg/m2.
- Language
-
- English
- Open access status
- bronze
- Identifiers
-
- DOI 10.1016/j.knee.2019.09.020
- PMID 31870700
- Persistent URL
- https://sonar.ch/global/documents/232815
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