.... The biomechanical properties of bone tissue located around the implant need to be assessed to better understand the osseointegration phenomena and anticipate implant failure. The aim of this study was to explore the spatiotemporal variation of the microscopic elastic properties of newly formed bone tissue close...

...N. K. Sharma; Swati Sharma; Apoorv Rathi; Abhinav Kumar; Karan Vir Saini; M. D. Sarker; Saman Naghieh; Liqun Ning; Xiongbiao Chen Bone being a hierarchical composite material has a structure varying from macro- to nanoscale. The arrangement of the components of bone material and the bonding between...

...Nicholas J. Hanne; Andrew J. Steward; Marci R. Sessions; Hannah L. Thornburg; Huaxin Sheng; Jacqueline H. Cole Ischemic stroke induces rapid loss in bone mineral density that is up to 13 times greater than during normal aging, leading to a markedly increased risk of fracture. Little is known about...

...) assessment of bone microstructure by scanning fixed regions of the distal radius and tibia. However, how microstructural parameters and mechanical analysis based on these segment scans correlate to whole distal radius and tibia mechanics are not well-characterized. On 26 sets of cadaveric radius and tibia...

... approach along with periodic boundary conditions has been used to derive the effective elastic moduli of bone's nanostructure at two hierarchical length scales, namely: microfibril (MF) and MCF. The uncertainties associated with the mineral plates have been directly included in the finite element mesh...

... elevations are applied to the more detailed geometry of the osteon and osteocyte submodels (described in Section 2.3 ). Fig. 4 Temperature elevations observed, experimentally and computationally, modeled on the cut bone surface as a result of 15 s continuous cutting at 150 mm/min and 40 s...

... [ 1 , 16 ]. Unfortunately, results derived from rodent studies are difficult to translate to the human condition due to major anatomic and physiologic differences between the two species. The basic microstructure of rodent bone is a lamellar morphology lacking the secondary osteonal systems...

... in the mechanical behavior of this bone. As such, these results suggest two very different approaches to QCT-based FE modeling of vertebral bone, depending on the region to be modeled. For models of the trabecular centrum alone, the choice of anisotropic material properties can have substantial influence...

..., 2012; published online December 27, 2012. Assoc. Editor: Richard Neptune. 25 04 2012 21 10 2012 28 11 2012 Little work has been done on the localization of microcracks in bone using acoustic emission. Microcrack localization is useful to study the fracture process in bone...

... biomechanics bone 05 01 2012 11 04 2012 01 05 2012 25 05 2012 25 05 2012 2012 American Society of Mechanical Engineers ...

... 27 04 2012 27 04 2012 tendon bone healing ACL in vivo cyclic strain mechanical load The anterior cruciate ligament (ACL) is the primary constraint to anterior translation of the tibia and acts as a secondary constraint to axial rotation. It is often injured during athletic...

...Romain Vayron; Etienne Barthel; Vincent Mathieu; Emmanuel Soffer; Fani Anagnostou; Guillaume Haiat The characterization of the biomechanical properties of newly formed bone tissue around implants is important to understand the osseointegration process. The objective of this study is to investigate...

...Bijay Giri; Shigeru Tadano There may be different causes of failures in bone; however, their origin generally lies at the lowest level of structural hierarchy, i.e., at the mineral-collagen composite. Any change in the nanostructure affects the affinity or bonding effectiveness between and within...

...Hamidreza Alidousti; Mark Taylor; Neil W. Bressloff When there is a debonding at the bone-implant interface, the difference in stiffness between the implant and the bone can result in micromotion, allowing existing gaps to open further or new gaps to be created during physiological loading. It has...

... to reconstruct 3D bone motions captured using this technology. Marker-based tracking requires at least three radio-opaque markers to be implanted in the bone of interest. Markerless tracking makes use of algorithms designed to match 3D bone shapes to biplanar videoradiography data. In order to reliably quantify...

...Chang-Yong Ko; Dong Hyun Seo; Han Sung Kim Skeletal unloading causes bone loss in both men and women; however, only a few studies have been performed on the effects of gender differences on bone quality during skeletal unloading. Moreover, although the fibula also plays an important role in load...

... biomechanics bone regression analysis lumbar curvature ribcage and pelvis rotation seated posture Lower back pain is a condition that afflicts millions of people and costs billions of dollars yearly due to worker’s compensation, medical bills, and related costs [( 1 2 3 )]. One...

...Rebecca L. Lathrop; Ajit M. W. Chaudhari; Robert A. Siston Estimating the position of the bones from optical motion capture data is a challenge associated with human movement analysis. Bone pose estimation techniques such as the Point Cluster Technique (PCT) and simulations of movement through...

.... , 17 ( 8 ), pp. 1241 – 1251 . 10.1007/s00198-006-0110-5 3 Augat , P. , Reeb , H. , and Claes , L. E. , 1996 , “ Prediction of Fracture Load at Different Skeletal Sites by Geometric Properties of the Cortical Shell ,” J. Bone Miner. Res. , 11 ( 9 ), pp. 1356 – 1363 . 10.1002...

...Zhijun Wu; Sayed A. Nassar; Xianjie Yang This study investigates the effect of the pilot hole size, implant depth, synthetic bone density, and screw size on the pullout strength of the self-tapping screw using analytical, finite element, and experimental methodologies. Stress distribution...