Results 61 to 70 of about 923,815 (244)

Fracture Compression and Construct Stability with Variable Pitch Locking Screws in Cadaveric Specimens

Foot & Ankle Orthopaedics
Category: Trauma; Basic Sciences/Biologics Introduction/Purpose: A variable pitch locking screw is intended to provide interfragmentary compression combined with fixed angle stability of locking plate constructs.
Zachary A. Koroneos BS, Shelby Alwine BS, Peter Tortora BS, Michaela D. Pitcher BS, Christian Benedict BS, Hwabok Wee PhD., Allen Kunselman MA, Greg Lewis PhD., Michael Aynardi MD   +8 more
doaj   +1 more source

Adjusting bone mass for differences in projected bone area and other confounding variables: an allometric perspective. [PDF]

, 2002
The traditional method of assessing bone mineral density (BMD; given by bone mineral content [BMC] divided by projected bone area [Ap], BMD = BMC/Ap) has come under strong criticism by various authors. Their criticism being that the projected bone "area"
Roger L. Holder, Nevill, AM, Holder, Roger, Maffulli, Nicola, Lau, Joseph T. F., Warren T. K. Lee, Lee, WTK, Jack C. Y. Cheng, Nevill, Alan M., Alan M. Nevill, Lee, Warren T. K., Lau, JTF, Joseph T. F. Lau, Maffulli, N, Leung, Sophie S. S. F., Holder, Roger L., Cheng, Jack C. Y., Nicola Maffulli, Cheng, JCY, Leung, SSSF, Sophie S. S. F. Leung   +20 more
core   +1 more source

In Situ X‐Ray Tomography and Acoustic Emission Monitoring of Damage Evolution in C/C‐SiC Composites Fabricated by Liquid Silicon Infiltration

Advanced Science, EarlyView.
This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen, Renato S. M. Almeida, Stefan Flauder, Guillaume Couégnat, Kamen Tushtev, Jürgen Horvath, Peter Wriggers, Kurosch Rezwan   +7 more
wiley   +1 more source

Functional Disorder at the Neural Interface: How Disordered Nanostructures Promote Proper Growth and Differentiation in In Vitro Neural Cultures

Advanced Science, EarlyView.
This work provides a practical guide for neuroengineers to design advanced neural interfaces, embracing and tailoring the concept of functional disorder. By bridging 2D and 3D in vitro models, this work highlights how non‐periodic, spatially heterogeneous, multiscale nanotopography can enable more physiologically relevant platforms for studying neural ...
F. Maita, E. Palmieri, I. Lucarini, L. Montaina, L. Maiolo   +4 more
wiley   +1 more source

A novel model of locking plate and locking spongious screw: a biomechanical in vitro comparison study with classical locking plate

Journal of Orthopaedic Surgery and Research
Background Locking plates are commonly used for the fixation of comminuted, periprosthetic and osteoporotic bone fractures. These plates are secured to the bone with screws, creating a stable connection with fixed angle between the plate and the screws ...
Fatih Parmaksizoglu, Sinan Kilic, Onur Cetin   +2 more
doaj   +1 more source

The scale-up of a tissue engineered porous hydroxyapatite polymer composite scaffold for use in bone repair: an ovine femoral condyle defect study

, 2014
The development of an osteogenic bone graft substitute has important practical and cost implications in many branches of medicine where bone regeneration is required.
Oreffo, Richard O. C., Purcell, Matthew, Tayton, Edward, Dunlop, Douglas G., Shakesheff, Kevin M., Goodship, Allen, Fowler, Darren, Smith, James O., Howdle, Steven M., Oreffo, Richard O.C., Blunn, Gordon, Lanham, Stuart, Tayton, Edward R.   +12 more
core   +1 more source

Deep Learning Network‐Tailored Microenvironment Matching of 4D Bioprinting Bioactive Scaffolds for Bone Regeneration

Advanced Science, EarlyView.
A DLN dataset was built to analyze MABS composition versus in vitro/in vivo osteogenesis and angiogenesis. An MLP neural network, taking BG morphological parameters as input, extracts bioactive features from these datasets. A rabbit tibial defect model then validates 4D‐printed MABS for adaptability and bone regeneration in critical defects.
Xiongjie Liang, Yuechi Zhang, Weifeng Hu, Shiyan Lv, Fan Jia, Yan Zhang, Feng Wu, Changjiang Yang, Guanqi Zhen, Jinglong Yan, Xu Cui, Wei Zhao, Guanghua Chen   +12 more
wiley   +1 more source

Surgical Strategies to Improve Fixation in the Osteoporotic Spine: the Effects of Tapping, Cement Augmentation, and Screw Trajectory

Global Spine Journal, 2014
Study Design Biomechanical study of pedicle screw fixation in osteoporotic bone. Objective To investigate whether it is better to tap or not tap osteoporotic bone prior to placing a cement-augmented pedicle screw.
Craig A. Kuhns MD, Michael Reiter, Ferris Pfeiffer, Theodore J. Choma   +3 more
doaj   +1 more source

Chemically Gradient Ordered Nanodomains Enable Large Tensile Ductility in Gigapascal Lightweight Refractory High‐Entropy Alloys

Advanced Science, EarlyView.
A high‐strength lightweight refractory high‐entropy alloy achieves extraordinary ductility owing to the introduction of coherent chemically gradient ordered nanodomains (CGONs). The CGONs not only serve as effective barriers to dislocation motion (strengthening) but also significantly promote dislocation nucleation and multiplication (ductilizing) upon
Wei Zhang, Dingshun Yan, Yong Zhang, Zhiming Li   +3 more
wiley   +1 more source

Is the pull-out force of the Meniscus Arrow in bone affected by the inward curling of the barbs during biodegradation? An in vitro study [PDF]

, 2009
Background: Inward curling of the barbs of Meniscus Arrows during degradation was observed in a previous study, in which swelling, distention, and water uptake by Meniscus Arrows was evaluated.
Bos, R.R.M., de Hosson, J.T.M., Wouters, D.B., Burgerhof, J.G.M.   +3 more
core