Développement d'une méthodologie d'analyse du traitement orthopédique de la dysplasie de la hanche

Authors: Grenier, Victor
Advisor: Ruel, Jean; Deteix, Jean; Belzile, Étienne
Abstract: Acetabular dysplasia causes articular instability and the reduction of the loading area in the hip. This causes the of articular function instability and the reduction of the loading area in the early onset of osteoarthritis which leads to pain and the eventual loss Acetabular dysplasia is commonly treated by periacetabular osteotomy, but the precise effects of this correction on intraarticular biomechanics is not yet well known. Using discrete element analysis, pressure distribution has been calculated in the dysplastic hips of 9 patients before and after periacetabular osteotomy. A variety of radiographic measurements and numerical metrics have been evaluated in order to q uantify of acetabular correction and excessive loading. the degree Correlations between these measures and metrics have been established in order to reveal any causal effects. correction s of the lateral centeredge angle, acetabular inde x and In particular, the femoral head extrusion index to are correlated to the rise of average contact area during gait (p 0.50).value < 0.05, R 2 = 0.22 Additionally, the influence of cartilage layer reconstruction method (population based healthy vs. dysplastic thicknesses) and loading parameters (healthy vs. dysplastic gait profiles) was significant for a majority of evaluated metrics. These results factors can help to assist with surgical planning , provide a basis for inand influencing vitro validation of surgical optimi zation acetabular dysplasia. and act as a standard for designing new orthopedic treatments for acetabular dysplasia.
Document Type: Mémoire de maîtrise
Issue Date: 2021
Open Access Date: 20 September 2021
Permalink: http://hdl.handle.net/20.500.11794/70380
Grantor: Université Laval
Collection:Thèses et mémoires

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