Results 51 to 60 of about 1,892,246 (283)

Interface Between Titanium Miniplate/Screw and Human Calvaria

, 2000
This study demonstrates interfacial changes of titanium miniplate/screw with normal calvaria and nonvascularized calvarial bone graft ensued from craniectomy in a 53-year-old female.
Hollinger, Jeffrey O, Hwang, Kun, Schmitt, John M   +2 more
core   +1 more source

Isolated olecranon fractures in children affected by osteogenesis imperfecta type I treated with single screw or tension band wiring system: outcomes and pitfalls in relation to bone mineral density [PDF]

, 2017
The purpose of this study is to compare the results of 2 techniques, tension band wiring (TBW) and fixation with screws, in olecranon fractures in children affected with osteogenesis imperfecta (OI) type I.
D'Eufemia, Patrizia, De Cristo, Claudia, Graci, Jole, Martini, Lorena, Persiani, Pietro, Ranaldi, Filippo M., Villani, Ciro, Zambrano, Anna   +7 more
core   +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

A Novel Screw Drive for Allogenic Headless Position Screws for Use in Osteosynthesis—A Finite-Element Analysis

Bioengineering, 2021
Due to their osteoconductive properties, allogenic bone screws made of human cortical bone have advantages regarding rehabilitation compared to other materials such as stainless steel or titanium.
Sebastian Lifka, Werner Baumgartner
doaj   +1 more source

Effect of sonic hedgehog/β-TCP composites on bone healing within the critical-sized rat femoral defect [PDF]

, 2013
The creation of entirely synthetically derived bone substitute materials which are as effective as autologous bone grafts is desirable. Osteogenesis involves the concerted action of several proteins within a signaling cascade.
Flinspach, Armin Niklas, Henrich, Dirk, Marzi, Ingo, Seebach, Caroline, Warzecha, Jörg, Wenger, Florian   +5 more
core   +1 more source

Cortical Bone Trajectory Screws in Posterior Lumbar Interbody Fusion: Minimally Invasive Surgery for Maximal Muscle Sparing—A Prospective Comparative Study with the Traditional Open Technique

BioMed Research International, 2018
Introduction A prospective comparative study between classical posterior interbody fusion with peduncular screws and the new technique with divergent cortical screws was conducted.
N. Marengo, M. Ajello, M. Pecoraro, G. Pilloni, G. Vercelli, F. Cofano, F. Zenga, A. Ducati, D. Garbossa   +8 more
semanticscholar   +1 more source

Plate osteosynthesis combined with bone cement provides the highest stability for tibial head depression fractures under high loading conditions

Scientific Reports, 2022
Older patients sustaining tibial head depression fractures often cannot follow the post-operative rehabilitation protocols with partial weight-bearing of the affected limb, leading to osteosynthesis failure, cartilage step-off and arthritis development ...
Philipp Heilig, Lars-Christopher Faerber, Mila M. Paul, Eva Kupczyk, Rainer H. Meffert, Martin C. Jordan, Stefanie Hoelscher-Doht   +6 more
doaj   +1 more source

Early Term Effects of rhBMP-2 on Pedicle Screw Fixation in a Sheep Model: Histomorphometric and Biomechanical Analyses [PDF]

, 2018
Background: The effects of recombinant human bone morphogenetic protein-2 (rhBMP-2) on pedicle screw pullout force and its potential to improve spinal fixation have not previously been investigated.
Arora, Akshi, Patel, Chetan, Toth, Jeffrey M., Wang, Mei   +3 more
core   +1 more source

Development of a test system to analyze different hip fracture osteosyntheses under simulated walking [PDF]

, 2012
The mechanical complications of osteosyntheses after hip fractures are previously investigated by mostly static or dynamic uniaxial loading test systems.
Bachmeier, Samuel, Dendorfer, Sebastian, Füchtmeier, Bernd, Lenich, Andreas, Mayr, Edgar, Nerlich, Michael   +5 more
core   +1 more source

Numerical simulation of bone screw induced pretension: The cases of under-tapping and conical profile [PDF]

, 2014
Even though screw induced pretension impacts the holding strength of bone screws, its implementation into the numerical simulation of the pullout phenomenon remains a problem with no apparent solution.
CHATZISTERGOS, Panagiotis, Kourkoulis, Stavros K., Magnissalis, Evangelos A.   +2 more
core   +1 more source