Lecture231 - Objectives • Age-related changes in hip &...

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Objectives Age-related changes in hip & their treatment (Total Hip Arthroplasty).
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Total Joint Arthroplasty Example Biology and Mechanics of Hip Replacement
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Acetabulum -concave component -lined with AC that is thick @ the periphery Femoral Head -convex component -lined with AC that is thick at the medial central surface. Hip Joint Anatomy
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Femoral Neck-most common site of fracture in elderly persons. Angulations Neck-to-shaft angle Antiversion angle Interior-cancellous (aligned along principal stress) and compact (thicker inferiorly) bone Hip: Joint Anatomy
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Relationship between trabecular orientation and principal planes
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Hip: Age-related Changes Loss of Bone Old Young Old Young
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Hip: Age-related Changes Loss of Bone
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Relative Changes in cortical vs cancellous bone of the femoral neck Femurs from 51CF and 81CF donors Trabeculae harvested from longitudinal cross sections of the medial aspect of lesser trochanter using surgical scalpel Cortical microbeams sectioned w.r.t. the
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This note was uploaded on 09/07/2008 for the course BMED 4540 taught by Professor Vashishth during the Fall '07 term at Rensselaer Polytechnic Institute.

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Lecture231 - Objectives • Age-related changes in hip &...

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