multiplanar or global laxity in arthritic knee is rare , most of this patients have neuromuscular disorder (post poliomyelitis , spinal dystrophy) or history of knee trauma. ligament insufficiency and severe bone loss is significant in this patient. the estimated prevalence for the concurrence of charcot marie-tooth (cmt) with myasthenia gravis (mg) suggests an extremely rare event. we have pre...

Geometry of the proximal femur is one determinant of fracture risk, and can be analyzed by a simple method using dual-energy X-ray absorptiometry (DXA). The aim of the present study was to investigate the accuracy of hip structural analysis (HSA) using clinical data in postmenopausal Japanese women. A total of 184 postmenopausal women aged 51-88 years (mean, 70.5 ± 8.7 years) who underwent arti...

The main aim of this work was evaluate the displacements and strains and stresses in components of knee endoprosthesis using Finite Element Method. The semi-constrained knee endoprosthesis with two stem length variants instrumented into femur and tibia bones was chosen for the analysis. The first step was preparation of two full knee endoprostheses geometrical models which were developed on a b...

objectives: the aim of this study was to extract suitable spatiotemporal and kinematic parameters to determine how total knee replacement (tkr) alters patients’ knee kinematics during gait, using a rapid and simplified quantitative two-dimensional gait analysis procedure. methods: two-dimensional kinematic gait pattern of 10 participants were collected before and after the tkr surgery, using a ...

Impairment of the human neuromusculoskeletal system can lead to significant mobility limitations and decreased quality of life. Computational models that accurately represent the musculoskeletal systems of individual patients could be used to explore different treatment options and optimize clinical outcome. The most significant barrier to model-based treatment design is validation of model-bas...

New bearing materials for total joint replacement have been explored as the need to improve longevity and enhance performance is driven by the changing demands of the patient demographic. Carbon-reinforced PEEK has demonstrated good wear characteristics in experimental wear simulation in both simple geometry pin-on-plate studies and in total hip joint replacement. Carbon reinforced PEEK CFR-PEE...

osteoarthritis (oa) a common disease of aged population and one of the leading causes of disability. incidence of knee oa is rising by increasing average age of general population. age, weight, trauma to joint due to repetiting movements in particular squatting and kneeling are common risk factors of knee oa. several factors including cytokines, leptin, and mechanical forces are pathogenic fact...

Abstract. A probabilistic method is proposed for segmentation of the knee joint. A likelihood function is formulated that explicitly models overlapping object appearance. Priors on global appearance and geometry (including shape) are learned from example images. Markov chain Monte Carlo methods are used to obtain samples from a posterior distribution over model parameters from which expectation...

introduction: there are differences in the pattern of the knee joint formation of the studied species. according to the small number of studies which focused chronologically on the avian knee histomorphogenetic events, its “morphogenetic pattern” is hard to be proposed. the present work was designed to identify the sequential events of the knee formation in the partridge embryo. regarding to di...