Results 41 to 50 of about 2,115,973 (229)

Superior short-term outcomes of FNS in combination with a cannulated screw in treating femoral neck fractures

BMC Musculoskeletal Disorders, 2023
Background This study aimed to evaluate the clinical efficacy of the femoral neck system alone or in combination with a cannulated screw compared with other internal fixation methods for treating femoral neck fractures.
Min Su, Zexing He, Nianlai Huang, Xiaocong Lin, Kaibin Fang, Zhangsheng Dai   +5 more
doaj   +1 more source

Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond

Advanced Materials, EarlyView.
Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang, Avirup Sardar, Weijie Ji, Zhongyu Liu, Rongchao Jin   +4 more
wiley   +1 more source

Bioinspired Adaptive Surfaces for Intelligent Liquid Manipulation: Progressing From Passive and Active to Hybrid Strategies

Advanced Materials, EarlyView.
This review examines passive, active, and hybrid liquid manipulation strategies, highlighting hybrid approaches as an emerging route to reconcile energy efficiency with adaptive control. By actively reconstructing passive surfaces to store programmable interfacial energy, hybrid systems enable flexible yet low‐power liquid transport, with perspectives ...
Jiaqi Miao, Yiyuan Zhang, Liqiu Wang, Alan C. H. Tsang   +3 more
wiley   +1 more source

Elastomeric 3D‐Printed Microenvironments Enable Nanonewton Force Measurements in Healthy and Diseased Human Pluripotent Stem Cell‐Derived Neuroepithelial Cells

Advanced Materials, EarlyView.
We present elastomeric three‐dimensional (3D) microstructures fabricated via two‐photon polymerization (2PP) and post‐processed through wet etching, for quantifying nanonewton (nN)‐scale forces applied by healthy and diseased neural cells. The mechanically characterized free‐standing beam architectures enable measurement of traction forces of ...
Pieter F. J. van Altena, Lucia Castillo Ransanz, Ruben H. Guis, Giulia Bergamaschi, Nanne J. Paauw, Urs Staufer, Vivi M. Heine, Angelo Accardo   +7 more
wiley   +1 more source

Biomechanical effects of FNS on femoral neck fractures based on different reduction quality: finite element analysis

BMC Musculoskeletal Disorders
Background and objective The femoral neck system (FNS) has been extensively studied and applied for the treatment of young patients with femoral neck fractures.
Xu Zhang, Yazhong Zhang, Shaolong Huang, Xiangyu Qi, Wenbo Li, Yongxiang Lv, Ziqiang Zhu   +6 more
doaj   +1 more source

A Comparative Evaluation of Four Different Techniques for Determining the Accuracy of Root Canal Working Length: An In Vitro Study

Dental Hypotheses, 2020
Introduction: Complete disinfection of root canal is one of the main objectives of root canal treatment. However, complete disinfection is only possible after correct determination of root canal working length.
Rakesh Kumar Yadav, Harsh Bhoot, Anil Chandra, Promila Verma, Ramesh Bharti, Vijay Kumar Shakya   +5 more
doaj   +1 more source

Evaluation of the Risk Factors for Mechanical Failure of Intertrochanteric Femoral Fracture Treated with Intramedullary Nailing

Düzce Tıp Fakültesi Dergisi, 2021
Aim: The aim of this study was to evaluate the radiological and clinical risk factors predisposing the proximal lag screw to mechanical failure in patients with pertrochanteric femur fractures treated with intramedullary nailing.
Mustafa Hacı Özdemir, Samet Erinç
doaj   +1 more source

AWARENESS OF TIP-APEX DISTANCE REDUCES FAILURE OF FIXATION OF TROCHANTERIC FRACTURES OF THE HIP

, 1997
We compared the results of the surgical treatment of trochanteric hip fractures before and after surgeons had been introduced to the tip-apex distance (TAD) as a method of evaluating screw position. There were 198 fractures evaluated retrospectively and
M. R. Baumgaertner, B. D. Solberg
core   +1 more source

Programming Actuation in 3D‐Printed Micro‐Architectures via Interfacial Adhesion Control

Advanced Materials Technologies, EarlyView.
A two‐phase meniscus‐guided 3D printing method directly fabricates microscale poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and poly(vinyl alcohol) (PVA) bilayers with in situ programmable interfaces. Modulating the meniscus stretching speed switches the interface between separated and bonded states, which controls the mechanical ...
Xiao Huan, Juhyung Kim, Yujin Park, Shiqi Hu, Jihyuk Yang, Nan Huang, Feipeng Chen, Yu Liu, Sixi Cao, Zhuoran Wang, Ho Cheung Shum, Barbara Pui Chan, Dongwoon Shin, Ji Tae Kim   +13 more
wiley   +1 more source

Biomechanical Evaluation of Extramedullary Versus Intramedullary Reduction in Unstable Femoral Trochanteric Fractures

Geriatric Orthopaedic Surgery & Rehabilitation, 2021
Introduction: The failure rate of operations involving the cephalomedullary nail technique for unstable femoral trochanteric fractures is 3-12%. Changing the reduction strategy may improve the stability.
Tadashi Kawamura MD, Hiroaki Minehara MD, PhD, Ryo Tazawa MD, PhD, Terumasa Matsuura MD, PhD, Rina Sakai PhD, Masashi Takaso MD, PhD   +5 more
doaj   +1 more source