Results 101 to 110 of about 60,729 (181)

Hydroxyapatite dip coated and uncoated titanium poly-axial pedicle screws: An in vivo bovine model

, 2006
Study Design. A 1-year-old calf was implanted with titanium pedicle screws either uncoated (n = 7) or coated with hydroxyapatite (n = 7) by the dipping method on the pedicles of vertebrae (t10-I3). Objective.
Aksakal, B, Yildirim, OS, Okur, A, Erdogan, F, Hanyaloglu, SC, Aksakal, Bunyamin, YILDIRIM, Ömer Selim, Okur, Ali, Hanyaloglu, Salih C., Erdogan, FAZLI   +9 more
core   +1 more source

TRANSPEDICULAR IMPLANTATION USING A TWO-PART NAVIGATION TEMPLATE IN EXTREMELY SMALL PEDICLES

Хирургия позвоночника
Objective. To explore results of transpedicular screws insertion in extremely small pedicles using two-part navigation template. Material and Methods. Eleven consecutive patients with spinal deformities were included in the study. During surgery pedicle
A.V. Kosulin, D.V. Elyakin, D.A. Saburova, O.A. Gordievskikh, A.D. German, I.A. Bulatova   +5 more
doaj   +1 more source

Development and Validation of Deep Learning Preoperative Planning Software for Automatic Lumbosacral Screw Selection Using Computed Tomography

Bioengineering
Achieving precise pedicle screw placement in posterior lumbar interbody fusion (PLIF) is essential but difficult due to the intricacies of manual preoperative planning with CT scans.
Baodong Wang, Congying Zou, Xingyu Liu, Dong Liu, Yiling Zhang, Lei Zang   +5 more
doaj   +1 more source

Anatomical and biomechanical analysis of sacral pedicle and lateral mass

Chinese Journal of Traumatology, 2011
【Abstract】Objective: To study the anatomical and biomechanical features of sacral pedicle and lateral mass so as to provide reference for clinical screw fixation technology of sacral pedicle and lateral mass.
LI Meng-jun, DAI Guo-qiang, WANG Dong, WANG Jin-wu, JIANG Hai-tao   +4 more
doaj  

Rate of Pedicle Dissruption after Screw Fixation

, 1994
Postoperative CT scans for accuracy of pedicular screw placement were assessed in 20 patients (82 pedicular screws) treated with several kinds of pedicular screws. When putting screws, the position of the guide pin was confirmed by the image intensifier.
이환모
core  

Biomechanical study of the fixation stability of broken pedicle screws and subsequent strategies - Fig 7

, 2019
Sagittal X-ray images show that the 6.0 mm × 45 mm, 6.0 mm × 50 mm, and 6.5 mm × 45 mm screws were inserted sequentially into the semi-pedicle (left side of A, B, C), nonpedicle (left side of D, E, F), and intact pedicle (right side of A-F).
Ming-Kai Hsieh (6894410), Mu-Yi Liu (840475), Chi-Chien Niu (803061), Jin-Kai Chen (6894413), Po-Liang Lai (93735), Ching-Lung Tai (50715), Tsung-Ting Tsai (664001)   +6 more
core   +1 more source

Incomplete insertion of pedicle screws in a standard construct reduces the fatigue life: A biomechanical analysis - Fig 4

, 2019
The distribution of maximum von Mises stress in (a) pedicle screws and (b) rods.
Yo-Lun Chu (7645553), Chia-Hsien Chen (316805), Yueh Wu (6294158), Chang-Jung Chiang (89000), Fon-Yih Tsuang (316803), Yi-Jie Kuo (316801)   +5 more
core   +1 more source

Trajectory Analysis and Pullout Strength of Self-Centering Lumbar Pedicle Screws: Laboratory Investigation

, 2009
Object. An experiment was performed to study the limits of the ability of screws designed to center themselves in the pedicle during insertion, and to study whether straight-ahead versus inward screw insertion trajectories differ in their resistance to ...
Yüksel, K. Zafer, Soto-Barraza, Julio C., Crawford, Neil R., Marciano, F., Yüksel, K., Doğan, Şeref, Doǧan, S., Baek, S., Theodore, Nicholas, Porter, R., Villasana-Ramos, Octavio, Marciano, Frederick F., Crawford, N., Porter, Randall W., Baek, Seungwon, Villasana-Ramos, O., Soto-Barraza, J., Theodore, N., Şeref Doğan, Seungwon Baek, Frederick F. Marciano, Julio C. Soto-Barraza, Randall W. Porter, K. Zafer Yüksel, Nicholas Theodore, Octavio Villasana-Ramos, Neil R. Crawford   +26 more
core   +1 more source

Comparative Outcomes of Cortical Bone Trajectory Screw Fixation and Traditional Pedicle Screws in Lumbar Fusion: A Meta-Analysis

, 2022
Comparative Outcomes of Cortical Bone Trajectory Screw Fixation and Traditional Pedicle Screws in Lumbar Fusion: A Meta ...
Fei Niu (761836), Wei Zhang (405), Jun Tan (46388), Jun Yan (28467), Feifei Chen (13069737), Ping Xia (220386), Ling Qiu (391806), Zhedong Wu (16621209)   +7 more
core  

Biomechanical advantage of C1 pedicle screws over C1 lateral mass screws : a cadaveric study

, 2013
Purpose: The established technique for posterior C1 screw placement is via the lateral mass. Use of C1 monocortical pedicle screws is an emerging technique which utilizes the bone of the posterior arch while avoiding the paravertebral venous plexus and ...
Lehmann, Wolfgang, Rueger, Johannes M., Fensky, Florian, Sellenschloh, Kay, Hansen-Algenstaedt, Nils, Kueny, Rebecca A., Püschel, Klaus, Huber, Gerd, Morlock, Michael M.   +8 more
core   +1 more source