Results 41 to 50 of about 590,725 (161)

Opposing Flanks vs Parallel Flanks – the Influence of Headless Screw Design on Compression and Pull- Out Resistance

Foot & Ankle Orthopaedics, 2023
Category: Basic Sciences/Biologics; Basic Sciences/Biologics Introduction/Purpose: Screws generate and maintain compression against distracting forces when performing osteotomy or fusion surgery.
Rachel Tan, Alba Morillo Patterson, Stephen JG Taylor PhD, Shelain Patel FRCS(Orth), Alessio Bernasconi MD, PhD, FEBOT, Karan Malhotra MBChB (Hons), MRCS, FRCS (Tr&Orth)   +5 more
doaj   +1 more source

Continuum Robots in Surgery: From Engineering Design to Clinical Practice

Advanced Robotics Research, EarlyView.
The hyper‐redundant nature of continuum robot structures enables near‐infinite degrees of freedom leading to immense potential for medical applications. This review provides a historical background of continuum robots and novel ideas shaping their progress to current structural design, sensing technology, modeling techniques, and control methods.
Griffin Smith, Kaitlyn Clancy, Siwen Xie, Xiaochen Li, Sarah Khalife, Benjamin van der Woerd, Onaizah Onaizah   +6 more
wiley   +1 more source

Biomechanical Comparison of Self-Compressing Screws and Cortical Screw Inserted with Lag Fashion in Canine Cadaveric Humeral Condylar Fracture Model

Veterinary Sciences
This study compares the compression force of cortical screws used in lag fashion with partially threaded cannulated screws and fully threaded headless cannulated screws as fixation methods for humeral condylar fractures in dogs.
Jun-sik Cho, Jung Moon Kim, Youn-woo Choo, Jooyoung Kim, Sorin Kim, Hwi-yool Kim   +5 more
doaj   +1 more source

Polydopamine Nanoparticle‐Mediated Precise Near‐Infrared Optical Stimulation for Cognitive Enhancement

Advanced Science, EarlyView.
Polydopamine nanoparticles enable a precise, non‐genetic, and transcranial neuromodulation strategy via near‐infrared photothermal stimulation. By activating TRPV1 channels, this approach specifically enhances hippocampal gamma oscillations, thereby rescuing spatial memory deficits in models of perioperative neurocognitive disorder.
Yan‐Bo Zhou, Qiong Xue, Su‐Xuan Hou, Ke‐Yao Zhang, Wei‐Tong Pan, Ting‐Ting Zeng, Yu‐Ge Wang, Daqing Ma, Chenguang Zhao, Pan‐Miao Liu, Jian‐Jun Yang   +10 more
wiley   +1 more source

Comparison of three different internal fixation implants in treatment of femoral neck fracture—a finite element analysis

Journal of Orthopaedic Surgery and Research, 2019
Background Current surgical interventions for the femoral neck fracture are using either cannulated screws (CCS) or a single large screw at a fixed angle with a side-plate (i.e., a sliding hip screw, AKA dynamic hip screw, DHS).
Jia Li, Zhe Zhao, Pengbin Yin, Licheng Zhang, Peifu Tang   +4 more
doaj   +1 more source

Effect analysis of medial bracing plate combined with cannulated screw in unstable femoral neck fracture assisted by surgical hip dislocation: a retrospective study

Journal of Orthopaedic Surgery and Research, 2023
Background Unstable femoral neck fractures have a high likelihood of causing severe disruption to the blood supply. This study aimed to assess the therapeutic effect of surgical hip dislocation using a medial support plate combined with cannulated screw ...
Xin Sun, Gang Yi, Liang Ao, Xin Zhou, Tao Zhang, Tai-yuan Guan   +5 more
doaj   +1 more source

Performance Estimation and Ex Vivo Validation of Untethered Magnetic Robots in Soft Tissue

Advanced Science, EarlyView.
This study presents an empirical model that quantitatively predicts the step‐out frequency of screw‐type untethered magnetic robots (UMRs) in soft viscoelastic environments, including ex vivo brain tissue. By integrating key parameters into a dimensionless framework, the model enables estimation of robot performance across a range of biological ...
Leendert‐Jan W. Ligtenberg, Thijs J. van der Burg, Stijn Y. Kolkman, Santiago Saavedra Castano, David Fernandez Rivas, Anke Klingner, Roger M. L. M. Lomme, Lucas S. Joziasse, Dorothee Wasserberg, H. Remco Liefers, Doron Ben Ami, Udi Sadeh, Oded Shoseyov, Giulio Dagnino, Pascal Jonkheijm, Jurgen J. Fütterer, Stefano Stramigioli, J. Frank W. Nijsen, Michiel C. Warlé, Islam S. M. Khalil   +19 more
wiley   +1 more source

Outcomes of Headed and Headless Cannulated Screws Fixation in Nondisplaced Femoral Neck Fracture

Geriatric Orthopaedic Surgery & Rehabilitation
Background The incidence of femoral neck fracture is increasing as society ages. Different types of cannulated screws can be used for internal fixation of femoral neck fractures, but no screw selection protocol has been determined to reduce the risk of ...
Ko-Ta Chen MD, Hsien-Tsung Lu MD, PhD, Chian-Her Lee MD, Meng-Huang Wu MD, PhD   +3 more
doaj   +1 more source

TREATMENT OF SCAPHOID NONUNION WITH OLECRANON BONE GRAFT AND COMPRESSION SCREW [PDF]

Acta Ortopédica Brasileira, 2016
Objective: To evaluate the outcome of olecranon bone graft and compression screw for the treatment of nonunion of the Lichtman type I scaphoid. Method: We evaluated 15 patients of 32 who underwent surgical treatment for nonunion of the Lichtman type I
ANTONIO TUFI NEDER FILHO, EDUARDO TRALDI FRANCESCHINI, ARLINDO GOMES PARDINI JÚNIOR, MARCELO RIBERTO, NILTON MAZZER   +4 more
doaj   +2 more sources

Significant Clinical Improvements Following Arthroscopic Iliopsoas Fractional Lengthening After Total Hip Arthroplasty: A Prospective Multicenter Study

Arthroscopy, Sports Medicine, and Rehabilitation, EarlyView.
Purpose To prospectively investigate subjective anterior groin pain, patient‐reported outcome measures, complications, reoperation rates, and hip flexion strength after arthroscopic iliopsoas fractional lengthening. Methods From 2023 to 2025, patients with persistent groin pain after total hip arthroplasty refractory to conservative management ...
Brandon Cabarcas, Sanathan Iyer, Sandeep Yanamala, Jason Ina, Alexander Bishop, Adam V. Daniel, Bruce A. Levy, Mario Hevesi   +7 more
wiley   +1 more source