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Study on the Biomechanical Mechanism of Patient-Orthosis Interaction Based on Subject-Specific Patient-Orthosis Coupling Musculoskeletal Model

Descripción del proyecto

Los modelos personalizados podrían favorecer el tratamiento ortopédico personalizado de la artrosis de rodilla

Más de trescientos millones de personas padecen artrosis de rodilla (AR o KOA, por sus siglas en inglés), lo que crea una necesidad acuciante de ortesis de rodilla más eficaces y cómodas. Los modelos musculoesqueléticos actuales, así como los nuevos modelos de acoplamiento humano-ortesis, no logran reproducir de forma fiel los mecanismos biomecánicos de las interacciones paciente-ortesis, sobre todo en relación con la distribución anómala de la carga entre los compartimentos medial y lateral de la rodilla, que es el principal factor biomecánico relacionado con el inicio y la progresión de la AR. En el proyecto KOA-Orthosis, que cuenta con el apoyo de las acciones Marie Skłodowska-Curie, se desarrollarán modelos musculoesqueléticos de acoplamiento paciente-ortesis específicos personalizados, lo que favorecerá el análisis detallado de las interacciones básicas. A continuación, se emplearán simulaciones para diseñar un prototipo de ortesis de rodilla basado en los modelos de interacción desarrollados y evaluar su rendimiento.

Objetivo

Knee osteoarthritis (KOA) is a prevalent, chronic, degenerative, and multifactorial disease associated with pain, stiffness, and physical disability, and it is a significant public health problem in the world. Abnormal load distribution between knee medial and lateral compartments has been designated as the main biomechanical factor for the initiation and progression of KOA. Accurate quantification of internal knee contact force during daily living activities is significant for understanding the biomechanical mechanism of patient-orthosis interaction and improving the treatment with knee orthotics.
During the passing years, some subject-specific musculoskeletal models have been proposed to improve the prediction accuracy of internal knee contact force. However, approximations such as linear scaling, point contact assumptions, absence of ligaments, inaccurate muscle models, and absence of proper knee models are present in most models. Additionally, new human-orthosis coupling models have been proposed during the past years. However, disadvantages such as a relatively simple human model, non-patient model, and rigid contact between human and orthosis, remain. Therefore, the current musculoskeletal models and human-orthosis coupling models are not suitable for deeply studying the biomechanical mechanism of patient-orthosis interaction.
The goal of the research will focus on (1) developing a subject-specific patient-orthosis coupling musculoskeletal model considering subject-specific geometric models of bones, cartilages and meniscus, knee ligaments, muscle modelling, natural contact, and patient’s disease progression; (2) analyzing the biomechanical relationship between the applied orthopedic moment and internal contact forces of knee medial and lateral compartments, and understanding the interaction between the knee orthosis and KOA patients; (3) simulation-based design and evaluation of a prototype knee orthosis based on the developed interaction models.

Coordinador

KUNGLIGA TEKNISKA HOEGSKOLAN
Aportación neta de la UEn
€ 206 887,68
Dirección
BRINELLVAGEN 8
100 44 Stockholm
Suecia

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Región
Östra Sverige Stockholm Stockholms län
Tipo de actividad
Higher or Secondary Education Establishments
Enlaces
Coste total
Sin datos