Results 51 to 60 of about 57,299 (228)

Finite element analysis of the pedicle screw in lumbar transpedicular dynamic stabilization that penetrates the lateral cortex of the vertebral pedicle

BMC Musculoskeletal Disorders
Background The mechanical stability of lumbar transpedicular dynamic stabilization (LTDS) was determined by simulating the degree to which the pedicle screws penetrated the lateral pedicle cortex.
Chen Zhao, Meichao Zhang, Pei Li, Lei Luo, Qiang Zhou, Liehua Liu   +5 more
doaj   +1 more source

A Biomechanical Comparison of Expansive Pedicle Screws for Severe Osteoporosis: The Effects of Screw Design and Cement Augmentation. [PDF]

PLoS ONE, 2015
Expansive pedicle screws significantly improve fixation strength in osteoporotic spines. However, the previous literature does not adequately address the effects of the number of lengthwise slits and the extent of screw expansion on the strength of the ...
Ching-Lung Tai, Tsung-Ting Tsai, Po-Liang Lai, Yi-Lu Chen, Mu-Yi Liu, Lih-Huei Chen   +5 more
doaj   +1 more source

Biologic gracilis augmentation with iliotibial band enhances recovery and lowers complications in ACL reconstruction compared with hamstring plus lateral tenodesis

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To compare the iliotibial band autograft biologically augmented with gracilis (ITBAG) technique with a hamstring tendon autograft combined with extra‐articular lateral tenodesis using fascia lata (HT‐LET), in terms of (1) return‐to‐sport rates, (2) patient‐reported functional outcomes and (3) complication rates.
Alexandre Le Guen, Yoann Bohu, Adrien S. Etienne, Eugenie Valentin, Antoine Gerometta, Fréderic Khiami, Alain Meyer, Olivier Grimaud, Etienne Cavaignac, Alexandre Hardy   +9 more
wiley   +1 more source

Freehand power-assisted pedicle screw placement in scoliotic patients: results on 5522 consecutive pedicle screws [PDF]

, 2022
Pedicle screws is the current gold standard in spine surgery, achieving a solid tricolumnar fixation which is unreachable by wires and hooks. The freehand technique is the most widely adopted for pedicle screws placing.
Ruffilli, A, M. Traversari, Faldini, C, Paolucci, A, Barile, F, D'Antonio, G, A. Rinaldi, A. Paolucci, G. D’Antonio, Viroli, G, G. Viroli, Rinaldi, A, F. Barile, C. Faldini, Manzetti, M, Ialuna, M, M. Ialuna, Traversari, M, A. Ruffilli, M. Manzetti   +19 more
core   +1 more source

From traditional practice to unsustainable exploitation: Fruit overharvesting on the endangered relict palm Jubaea chilensis

PLANTS, PEOPLE, PLANET, EarlyView.
Overharvesting of wild edible plants poses a growing threat to plant populations worldwide, particularly for slow‐growing species with limited regeneration. We quantified fruit extraction from the third‐largest known population of Jubaea chilensis—an endangered palm endemic to Chile—modeled the critical harvest threshold, and assessed consumer ...
Sebastián Cordero, Francisca Gálvez, Marisol Arriagada‐Honores, Andrés Jesús Garrido, Daniela Paredes‐Muñoz, Bastián Fuentes‐Valdés, Fernanda Torres‐Cifuentes, Francisco E. Fontúrbel   +7 more
wiley   +1 more source

Membranes for Periodontal and Bone Regeneration: Everything You Need to Know

Journal of Periodontal Research, EarlyView.
This paper presents and highlights a summary of the past, present, and future of membranes for oral regeneration in clinical applications and fundamental studies. ABSTRACT Implant dentistry and periodontology have shown an increasing demand for regenerative procedures associated with biomaterials targeting successful clinical outcomes and predictable ...
Marcel F. Kunrath, Gabriel L. Magrin, Candida S. Zorzo, Ingrid Rigotto, Hanna Aludden, Christer Dahlin   +5 more
wiley   +1 more source

Biomechanical Comparison of Same Size Transfacet Screws Versus Pedicle Screws Across the L5-S1 Native Disc

, 2017
Objective: There is resurgence in facet screw use; however, there is a paucity of data comparing the stability of transfacet pedicle screws (TFPS) to standard pedicle screw-rod constructs at L5-S1.
KR Chin, Yu, W. D., Pencle, F J.R., WD Yu, Newcomb, A G.U., Newcomb, A. G.U., MT Reis, Reyes, P M, Reis, M T, Bruce, C A, AGU Newcomb, Chin, K. R., Chin, K R, FJR Pencle, D Malhotra, Malhotra, D, Yu, W D, Pencle, F. J.R., NR Crawford, Malhotra, D., Bruce, C. A., Crawford, N R, Reyes, P. M., CA Bruce, Crawford, N. R., Reis, M. T., PM Reyes   +26 more
core   +1 more source

Experimental analysis of pedicle screws [PDF]

, 2016
Aim of this study is to examine the mechanical properties of pedicle screws in titanium alloy obtained by the process of additive manufacturing (Electron Beam Melting, EBM) and compare them with those of screws obtained with traditional techniques.
Rosa, Guido La, Mineo, Rosalia, Clienti, Carmelo, Audenino, Alberto   +3 more
core   +1 more source

Intra-operative computer navigation guided cervical pedicle screw insertion in thirty-three complex cervical spine deformities

Journal of Craniovertebral Junction and Spine, 2010
Background: Cervical pedicle screw fixation is challenging due to the small osseous morphometrics and the close proximity of neurovascular elements. Computer navigation has been reported to improve the accuracy of pedicle screw placement. There are very
S Rajasekaran, P.R.M. Kanna, T.A.P. Shetty   +2 more
doaj   +1 more source

Cutting Flute and Thread Design on Self-Tapping Pedicle Screws Influence the Insertion Torque and Pullout Strength

Applied Sciences, 2022
Self-tapping screws are commonly used in trauma and maxillofacial surgery and are increasingly used for pedicle screw insertions. In order to evaluate how the quantity and length of cutting flutes on self-tapping pedicle screws affect the insertion ...
Lien-Chen Wu, Yueh-Ying Hsieh, Fon-Yih Tsuang, Yi-Jie Kuo, Chang-Jung Chiang   +4 more
doaj   +1 more source