Bone loading

Xem 1-8 trên 8 kết quả Bone loading
  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học quốc tế đề tài : Can medio-lateral baseplate position and load sharing induce asymptomatic local bone resorption of the proximal tibia? A finite element study

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  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học quốc tế đề tài : Development of an in vitro three dimensional loading-measurement system for long bone fixation under multiple loading conditions: a technical description

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  • Prof. Wang is studying how bone cells sense external mechanical forces, which allows living bone tissue to adapt to its mechanical usage. With the absence of mechanical stimulation (such as the microgravity for astronauts) and loss of sensitivities of detecting the loads (such as during aging), bone mass decreases and bone structure degenerates, eventually leading to bone fracture. recent studies have found that osteocytes—the most abundant cells buried inside the mineralized matrix—serve as sensors that orchestrate bone adaptation....

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  • Lam et al. Journal of Orthopaedic Surgery and Research 2010, 5:18 http://www.josr-online.com/content/5/1/18 RESEARCH ARTICLE Open Access Skeletal nutrient vascular adaptation induced by external oscillatory intramedullary fluid pressure intervention Hoyan Lam1, Peter Brink2, Yi-Xian Qin1,2* Abstract Background: Interstitial fluid flow induced by loading has demonstrated to be an important mediator for regulating bone mass and morphology. It is shown that the fluid movement generated by the intramedullary pressure (ImP) provides a source for pressure gradient in bone.

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  • Journal of Orthopaedic Surgery and Research Research article BioMed Central Open Access Can medio-lateral baseplate position and load sharing induce asymptomatic local bone resorption of the proximal tibia? A finite element study Bernardo Innocenti*1, Evelyn Truyens2, Luc Labey1, Pius Wong1, Jan Victor3 and Johan Bellemans2 Address: 1European Centre for Knee Research, Smith & Nephew, Leuven, Belgium, 2Department of Orthopaedic Surgery, Catholic University Leuven, University Hospital Pellenberg, Pellenberg, Belgium and 3AZ St-Lucas, Bruges, Belgium Email: Bernardo Innocenti* - bernardo.

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  • The key component of osteocyte’s mechanosensing apparatus is the pericellular matrix. limited electron microscope studies reveal that this fluffy “jungle” consists of nanoscale fibrous structures, (about 100nm thick), filling the tiny gap between the cell membrane and the bone matrix. Mechanically, it controls the hydraulic permeability of the bone tissue, determining how easy fluid flows around the cells under external loading.

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  • Failure of locking plate fixation due to varus collapse is a common problem for the elderly population who have osteoporotic bone with comminuted fractures. However, it is possible to increase the stability and the stiffness of the fixation system by using intramedullary fibular graft. This study compares the effectiveness of the augmented versus non-augmented locking plate fixation under clinically relevant cyclic loading. Nine pairs of cadaveric humeri were utilized with one side fixated using the augmented system and the other using the non-augmented one.

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