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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 37 for “"Proximal femur"”.
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Ογκολογικές προθέσεις εγγύς μηριαίου - Proximal femur tumor prosthesis
Οι κακοήθεις νεοπλασίες αποτελούν τη δεύτερη κυριότερη αιτία θνησιμότητας παγκοσμίως, με προβλεπόμενη αύξηση της θνησιμότητας τα επόμενα έτη. Το εγγύς τμήμα του μηριαίου οστού αποτελεί συχνή περιοχή ανάπτυξης πρωτοπαθών οστικών σαρκωμάτων, όπου τα σαρκώματα Ewing, τα χονδροσαρκώματα και τα …
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Failure of the human proximal femur : material and structural perspectives
Thesis (Ph. D.)--Massachusetts Institute of Technology, Whitaker College of Health Sciences and Technology, 1996.
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Association of Proximal Femoral Geometry with Osteoporotic Proximal Femur Fracture in Elderly Koreans
… studies demonstrated a relationship between proximal femoral geometry and the risk of hip fracture, but there is relatively little information about the association of these measurements with hip fracture in Korean. Our study assessed the relationship between femur geometry and hip fracture …
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Cortical thickness estimation of the proximal femur from multi-view dual-energy X-ray absorptiometry
… which measure the cortical thickness of the proximal femur from multi-view DXA scans. First, a data-driven algorithm is designed, implemented and evaluated. It relies on a femoral B-spline template which can be deformed to fit an individual’s scans. In a series of experiments on the …
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Various continuum bone remodelling algorithms applied to the proximal femur in two and three dimensions
This study investigates the behaviour of bone when it is subjected to mechanical loading. This is important in fields such as orthopaedics and implant design. Various models of bone remodelling are discussed, and a strain energy based as well as a strain remodelling based algorithm are applied in …
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An examination of age-related differences in lower extremity joint torques and strains in the proximal femur during gait
… effect that can reduce shear and bending in the femur. This is beneficial because bone is stronger in compression than in shear or tension, and shear plays an important role in fatiguing bone. Understanding how aging and muscular loads affect strains in the proximal femur could lead to …
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Silent slips trips and broken hips: the recovery experiences of young adults following an isolated fracture of the proximal femur
Isolated hip fracture following a minor fall is a serious injury, normally requiring urgent surgical treatment and a complex recovery journey. Although commonly associated with the elderly, incidence and impact in adults under 60 years of age may be underestimated. The extensive literature almost …
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Cultural Behaviors and Their Influence on the Proximal Femur: Comparisons of Postural Behavior, Occupation, and Subsistence-Settlement Between a Pre-Contact and Historic Sample
… geographical area as well. Skeletal data such as proximal femur angles and activity markers contribute to the understanding of subsistence-settlement trends and postural behavior of the mortuary complex. Femoral neck version is associated with postural behaviors such as squatting and kneeling. The …
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The Effect of Consuming Either Dairy Milk, Plant-Based Protein Beverage, or Low-Protein Almond Beverage on Body Composition, Proximal Femur Geometry, and Muscular Strength in Adolescent Athletes
… on body composition, muscular strength, and proximal femur geometry in adolescents participating in sports. Participants (n=112; 79 males, 33 females; 14.2±1.5y; 166.9±10.4cm; 60.7±17.8kg) were randomized into dairy milk (n=36), plant-based protein beverage (n=39), or low-protein …
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Age-Related Changes and Regional Variations in Three-Dimensional Microstructural Properties of Male Proximal Femoral Trabecular Bone
… 3D microstructure of trabecular bone in human proximal femur, with respect to aging. Materials and Methods: A total of 162 trabecular bone cores were obtained from six regions (femoral head, superior and inferior regions of the neck, and superior/middle and inferior regions of the trochanter) …
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Evaluation of biocompatible osteoconductive polymer (BOP) as an osteconductive implant
… made in the lateral subtrochanteric area of the proximal femur in 16 dogs received Biocompatible Osteoconductive Polymer (BOP) fiber (n = 16), autogenous cancellous bone from the proximal femur (n = 4) or proximal humerus (n = 7), or no treatment (n = 5). BOP block was attached extraperiosteally …
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A shape analysis approach to prediction of bone stiffness using FEXI
… variations in geometric parameters of a virtual proximal femur model. This study demonstrated that 3D FE and 2D FE (FEXI) were significantly more sensitive to the anatomical shape and composition of the proximal femur than conventional BMD. The simulation approach helped to analyse and understand …
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A comparison of physical activity (high and low) and bone mineral density in young, healthy, eumenorrheic females
… in the total body, lumbar spine (L1-L4), and proximal femur by dual-energy radiography, and the mid-shaft site of the bilateral radii by single photon absorptiometry. Additional measures of physique, body composition, nutritional intake, and caloric expenditure were obtained. The high physical …
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Zlomenina proximálního femuru. Výsledky léčby. Sekundární prevence vzniku nových zlomenin proximálního femuru po zlomenině kontralaterálního proximálního femuru
… mortality and their economic impact, proximal femoral fractures are the most serious of all low energy fractures. They heighten the risk of further low energy fractures including contralateral proximal femoral fracture. Fracture of the contralateral proximal femur is associated with …
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Automated Modelling of Cortical Bone from Clinical CT
… of ex-vivo QCT and HR-pQCT scans across the proximal femur and the lumbar spine. The simulated data allows for inaccuracies in CBM measurements caused by beam hardening effects to be considered for the first time: I show that beam hardening leads to an underestimation in cortical thickness …
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Contributions of physical activity, body composition, age, and nutritional factors to total and regional bone mass in premenopausal aerobic dancers and walkers
… 25 to 41 years. Total body, lumbar spine, and proximal femur (via dual energy X-ray absorptiometry) measurements for all subjects were obtained. Mean height, weight, body mass index, and age were similar for the three groups, but the exercisers were significantly leaner. The non-exercisers had …
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The Relationship Between Physical Activity Level and Bone Mineral Status in Adolescent Males
… variables were BMC and BMD of the total body, proximal femur, lumbar spine, lateral lumbar spine and midshaft of the right and left radii. The prepubescent or post-pubescent groups did not differ in age, height or weight. The results indicated prepubescent high active subjects averaged 4.5 …
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Evaluation of Neuromuscular Electrical Stimulation as a Bone Loss Countermeasure on a Long Duration Mars Mission
… produced a finite element analysis model of the femur, to determine the strain at the proximal femur during NMES contractions of the thigh muscles. This strain was compared to the strain produced during other activities that have been investigated for bone loss in order to infer efficacy. Second, …
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The Effects of Vitamin D and Sarcopenia on Bone mineral density in Korean women
… Vitamin D and muscle mass affected BMD at proximal femur, but not at lumbar spine. Vitamin D deficiency and sarcopenia increased odd ratio for osteoporosis before and after adjusted for multiple variables. The effects of vitamin D deficiency on BMD still remained significant after …
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Kazuistika fyzioterapeutické péče o pacienta po operaci subtrochanterického chondrosarkomu
… after the operation of chondrosarcoma on the proximal femur, where they have used a graft from the fibula bone on the right leg. Summary: The bachelor's thesis is split into two sections: general section and a specific section. The general section describes the pathophysiology of overall …
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