[Comparative evaluation of stress patterns in models of the normal hip joint and after implantation of the Parhofer-Mönch type hip prosthesis].
The paper presents a comparative appraisal of stress patterns of the normal acetabulum of the hip joint and after implantation of a Parhofer-Monch type prosthesis based on a computer simulation analysis. Three-dimensional physical models were constructed basing on finite element methods and loaded according to Pauwels' scheme with a force R = 2878 N. Mathematical analysis was performed on a computer equipped with a Pentium II processor, using professional software written for theory of elasticity problem solving. Equipotential stress patterns were designated according to Hubers' hypothesis. A redistribution and decrease in stress values in the bone directly around the acetabular component of the prosthesis was noted.
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Katedra i Oddział Kliniczny Ortopedii, Slaska Akademia Medyczna w Katowicach.
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D000077:Acetabulum / Q000503:physiopathology*; D004548:Elasticity; D006621:Hip Joint / Q000502:physiology* / Q000503:physiopathology*; D006622:Hip Prosthesis; D006801:Humans; D008954:Models, Biological; D013314:Stress, Mechanical