Results 41 to 50 of about 1,046,684 (289)

Safety and Osteointegration of Titanium Screws Coated with a Fibroblast Growth Factor-2–Calcium Phosphate Composite Layer in Non-Human Primates: A Pilot Study

, 2023
Spinal instrumentation surgery for older patients with osteoporosis is increasing. Implant loosening may occur due to inappropriate fixation in osteoporotic bone.
Yohei Yanagisawa, Hiroshi Noguchi, Yukei Matsumoto, Eriko Okano, Hirotaka Mutsuzaki, Tadashi Sankai, Katsuya Nagashima, Masashi Yamazaki, Yuki Hara   +8 more
core   +1 more source

Cortical bone trajectory fixation cause low compression force in anterior vertebral column

North American Spine Society Journal, 2022
Background: The cortical bone trajectory (CBT) screws follow a caudocephalad and lateral path from the pedicle to the vertebral body. The bone fusion rate of CBT fixation is equal to or lower than conventional pedicle screw fixation.
Sho Fujiwara, Yuichiro Ohnishi, Koichi Iwatsuki, Haruhiko Kishima   +3 more
doaj   +1 more source

Impact of bone density and integrated screw configuration on standalone anterior lumbar interbody construct strength

North American Spine Society Journal
Background: In anterior lumbar interbody fusion (ALIF), the use of integrated screws is attractive to surgeons because of the ease of implantation and no additional profile.
Ross Dies, BS, Jay Manuel, MS, Andrew S. Zhang, MD, Milan Mody, MD, Seokgi Lee, PhD, Mathew Root, BS, Trevor Carroll, MD, Chukwuemeka Mbagwu, MD, Giovanni F. Solitro, PhD   +8 more
doaj   +1 more source

A new concept for implant fixation: bone-to-bone biologic fixation [PDF]

European Cells & Materials, 2015
Many attempts have been made to reduce complications of bone implant, such as pedicle screw loosening. To address this problem, the authors suggest a new concept of bone-to-bone biologic fixation using recombinant human bone morphogenetic protein-2 ...
D-Y Kim, J-R Kim, KY Jang, K-B Lee
doaj  

Torsional stability of interference screws derived from bovine bone - a biomechanical study [PDF]

, 2010
Introduction: It has been proposed that individual genetic variation contributes to the course of severe infections and sepsis. Recent studies of single nucleotide polymorphisms (SNPs) within the endotoxin receptor and its signaling system showed an ...
Zayat, Bilal Farouk el, Markus Dietmar Schofer, Silke Herdrich, Bauer, Joscha, Timmesfeld, Nina, Joscha Bauer, Bilal Farouk El-Zayat, Schofer, Markus Dietmar, Schmitt, Jan, Leo Gotzen, Turgay Efe, Jan Schmitt, Gotzen, Leo, Nina Timmesfeld, Efe, Turgay, Herdrich, Silke   +15 more
core   +2 more sources

3D‐Printed Titanium Gyroid Scaffold Structure Integrated With Tough Hybrid Materials for Cartilage Replacement

Advanced Engineering Materials, EarlyView.
This study proposes a potential device design for joint cartilage replacement. Silica‐polytetrahydrofuran (SiO2‐PolyTHF) hybrids with customizable mechanical properties were developed to mimic the characteristics of a natural meniscus. These were synthesized through a two‐pot sol–gel hybrid process.
Yu‐Chien Lin, Gloria R. Young, Francesca Tallia, Reece N. Oosterbeek, Shaaz Ghouse, Edward Spiers, Nupur Kohli, Tom Briggs, Marc Masen, Siwei Li, Ren‐Jei Chung, Jonathan R. T. Jeffers, Julian R. Jones   +12 more
wiley   +1 more source

ONE OR TWO SCREWS IN THE FRACTURE OF THE ODONTOID PROCESS? EVALUATION USING COMPUTED TOMOGRAPHY

Coluna/Columna, 2015
Objective:To evaluate the bone area of the odontoid process through computed tomography and its relation with the area of one and two screws in the male and female subjects.Methods:188 CT scans of adults were analyzed.
Carlos Alexandre Botelho do Amaral, Edgar Taira Nakagawa, Leonardo Ternis Ferreira, José Sergio Franco, Robinson Esteves Santos Pires, Flávio Cavallari, Pedro José Labronici   +6 more
doaj   +1 more source

Bone‐Inspired Recyclable Composites for Damage‐Tolerant Circular Materials

Advanced Functional Materials, EarlyView.
Bone‐inspired architected composites are developed by combining osteon‐like reinforcements with a recyclable Elium thermoplastic matrix. The hierarchical architecture redirects cracks and promotes energy dissipation, while enabling recovery of intact, aligned, load‐bearing reinforcement units that retain their original stiffness, revealing a route ...
Alessandro Stagni, Nastaran Bahrami Novin, Luigi Benvenuto, Enrico Lertora, Flavia Libonati   +4 more
wiley   +1 more source

Microfluidic Engineering of Microgels: A Review of Emerging Technologies, Materials, Fabrication Strategies, and Applications

Advanced Healthcare Materials, EarlyView.
Recent advances in microfluidic technologies for microgel fabrication are critically reviewed, highlighting the capabilities and limitations of major microfluidic platforms and discussing how platform design, material selection, and crosslinking strategies influence microgel architecture and functionality. Current challenges and future opportunities in
Afshin Abrishamkar, Laura Neely, Cynthia Pham, Nada Ibrahim, Alexis Larios‐Cervantes, Ben A. Kertesz, Todd Hoare   +6 more
wiley   +1 more source

Effects of Immediate Orthodontic and Orthopedic Forces on Peri-Miniscrew Bones: Histomorphologic and Histomorphometric Assessment in Dogs

International Journal of Dentistry, 2012
Aim. The aim of this study was histomorphologic and histomorphometric evaluation of peri-screw bone after immediate orthodontic and orthopedic forces and comparing them with a control group. Materials and Methods.
Mansour Rismanchian, Sayed Hamid Raji, Danesh Teimori Rik, Sayed Mohammad Razavi, Navid Khalighinejad, Hossein Goroohi, Hamid Badrian   +6 more
doaj   +1 more source