.... 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...

... manuscript received November 27, 2013; accepted manuscript posted December 9, 2013; published online February 5, 2014. Editor: Victor H. Barocas. 13 08 2013 27 11 2013 09 12 2013 During orthopaedic surgery elevated temperatures due to cutting can result in bone injury, contributing...

... are difficult to translate to the human condition due to major anatomic and physiologic differences between the two species such as bone microarchitecture and healing rates. The use of translatable ovine models to investigate orthopedic-related conditions has become increasingly popular due to similarities...

... finite element (FE) models of the vertebra. The material properties are typically estimated solely from local variations in bone mineral density (BMD), and a fixed representation of elastic anisotropy (“generic anisotropy”) is assumed. This study evaluated the effect of incorporating specimen-specific...

...John O'Toole; Leo Creedon; John Hession; Gordon Muir All located AE sources should ideally reside within the bone sample boundaries. If not, the location coordinates contain some sort of error. Small errors can be expected with any location algorithm, so if the computed location lies inside...

... 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...

... 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...

...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...

...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...

...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...

... rotation seated posture biomechanics bone regression analysis 01 02 2011 26 10 2011 27 10 2011 28 11 2011 28 11 2011 2011 American Society of Mechanical Engineers ...

...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...

...) and 0.72 mm more palmar ( p  = 0.021) for the intact wrist simulations (Table 1 ). No differences in fracture location were observed in the longitudinal direction ( p  = 0.185). biomechanics bone finite element analysis fracture toughness stress-strain relations osteoporosis bone strength...

...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...