Results 71 to 80 of about 13,392 (217)

Pullout strength of pedicle screws with cement augmentation in severe osteoporosis: A comparative study between cannulated screws with cement injection and solid screws with cement pre-filling

BMC Musculoskeletal Disorders, 2011
Background Pedicle screws with PMMA cement augmentation have been shown to significantly improve the fixation strength in a severely osteoporotic spine.
Lee Yen-Chen, Lai Po-Liang, Lee De-Mei, Tai Ching-Lung, Chen Lih-Huei, Niu Chi-Chien, Chen Wen-Jer   +6 more
doaj   +1 more source

Quantification of bone strength by intraoperative torque measurement: a technical note [PDF]

, 2018
Introduction: Bone strength describes the resistance of bone against mechanical failure. Bone strength depends on both the amount of bone and the bone's quality, and the bone strength may be looked upon as a relevant parameter to judge an osteosynthesis'
Haenni, Markus, Hirschmann, Michael, Müller, Andreas, Schwyn, Ronald, Suhm, Norbert   +4 more
core  

Femoral Neck Fracture With Anterior Tilt

Orthopaedic Surgery, EarlyView.
In patients with OTA/AO type 31B femoral neck fractures, anterior tilt fractures were more common among females and those with valgus malalignment. Although outcomes and complication rates did not differ significantly among fracture patterns, patients with displaced fractures had a higher risk of developing femoral neck necrosis.
Yu‐Kai Wang, Ming‐Yong Chen, Yi Zhu, Sheng‐Hui Wu, Yu‐Yi Zhang, Jun Zhang, Ming Ni, Jiong Mei   +7 more
wiley   +1 more source

Perioperative Factors Associated With Allogeneic Blood Transfusion in Elective THA

Orthopaedic Surgery, EarlyView.
Early postoperative hematocrit is the strongest and most clinically useful predictor of transfusion risk after primary THA, while cup inclination has minimal discriminative value. A hematocrit threshold of < 0.28 L/L reliably identifies high‐risk patients and should guide transfusion‐related decision‐making.
Nikolai Ramadanov, Dakota Fuchs, Maximilian Heinz, Robert Prill, Roland Becker   +4 more
wiley   +1 more source

Effect of pedicle screw augmentation with a self-curing elastomeric material under cranio-caudal cyclic loading—a cadaveric biomechanical study

Journal of Orthopaedic Surgery and Research, 2018
Background Pedicle screws can be augmented with polymethylmethacrylate (PMMA) cement through cannulated and fenestrated pedicle screws to improve screw anchorage. To overcome the drawbacks of PMMA, a modified augmentation technique applying a self-curing
Werner Schmoelz, Alexander Keiler, Marko Konschake, Richard A Lindtner, Alessandro Gasbarrini   +4 more
doaj   +1 more source

A supplemental screw enhances the biomechanical stability in medial open-wedge high tibial osteotomy.

PLoS ONE, 2020
BackgroundThe supplemental screw technique was introduced for salvage of lateral hinge fracture in medial open-wedge high tibial osteotomy (owHTO). The efficacy of its use in protection of lateral hinge fracture and corresponding biomechanical behaviors ...
Jesse Chieh-Szu Yang, Philipp Lobenhoffer, Chia-Ming Chang, Cheng-Fong Chen, Hsiu-Chen Lin, Hsuan-Hsiao Ma, Pei-Yuan Lee, Oscar Kuang-Sheng Lee   +7 more
doaj   +1 more source

Fracturas subtrocantéricas tras fijación de fracturas de cuello femoral con tornillos canulados [PDF]

, 2008
Entre las opciones para el tratamiento de las fracturas no desplazadas de cuello femoral, la osteosíntesis con tornillos canulados es una de las más utilizadas.
Gomar Sancho, Francisco, Puertes Almenar, L., Renovell Ferrer, Pablo   +2 more
core  

Variability of the pullout strength of cancellous bone screws with cement augmentation [PDF]

, 2015
Background Orthopaedic surgeons often face clinical situations where improved screw holding power in cancellous bone is needed. Injectable calcium phosphate cements are one option to enhance fixation. Methods Paired screw pullout tests were undertaken in
Andersson, Andreassen, Andrews EW Gibson, Asnis, ASTM F543–07e1, Augat, Bayraktar, Berlemann, Brown, Brown, C.J. Brown, Cantlon, Chapman, Chen, Collinge, D.P. Pioletti, Eriksson, Flahiff, Gausepohl, Gefen, Gibson, Hoshikawa, Hughes, J. Arnoldi, Jesudason, Keaveny, Kim, Larsson, Larsson, Leung, Mader, McKoy, Namdari, P. Bennani, P. Procter, Patel, Procter, Ramaswamy, Renner, Rincon Kohli, S. Larsson, Schoenfeld, Seebeck, Singer, Stadelmann, Strømsøe, Thiele, Verlaan, Wirth, Yánez   +49 more
core   +2 more sources

The pyrogenic mediator prostaglandin E2 elicits warmth seeking via EP3 receptor‐expressing parabrachial neurons: a potential mechanism of chills

The Journal of Physiology, EarlyView.
Abstract figure legend During infection, prostaglandin E2 (PGE2) is produced and elicits warmth‐seeking behaviour and involuntary febrile responses by acting on prostaglandin EP3 receptors (EP3Rs) in two distinct brain sites. PGE2 acting on EP3Rs on neurons in the external lateral part of the lateral parabrachial nucleus (LPBel) augments cold sensory ...
Takaki Yahiro, Yoshiko Nakamura, Kazuhiro Nakamura   +2 more
wiley   +1 more source

Fractura subtrocantérica tras fijación percutánea con tornillos de fracturas no desplazadas en el cuello femoral : presentación de tres casos y revisión de la literatura [PDF]

, 2016
Objective. To show 3 cases of subtrochanteric fracture as complication of screw fixation for femoral neck undisplaced fractures. Material and methods. We present 3 cases of subtrochanteric fractures after screw fixation of valgus impacted femoral neck ...
Andrés Peiró, José Vicente, Molero García, V., Reverté Vinaixa, M.M., Teixidor Serra, J., Tomás Hernández, J.   +4 more
core