Results 81 to 90 of about 35,004 (295)

Numerical Study of the Effect of Elastomer and Cement of Stress Absorbers on the Reduction of Stresses in Tibia and Tibial Bone Analysed by Finite Element Method

Nano Biomedicine and Engineering, 2018
Metal alloys have been the materials of choice since the start of orthopaedic surgery. Orthopedic materials must fulfill the mechanical, biological and physical necessities of their proposed utilization. Knee joint is the most complex joint in human body,
Abdelkader Mestar, Samir Zahaf, Nourddine Zina, Ahmed Boutaous   +3 more
doaj   +1 more source

Predicting implant UHMWPE wear in-silico: A robust, adaptable computational-numerical framework for future theoretical models

, 2011
Computational methods for the pre-clinical wear prediction for devices such as hip, knee or spinal implants are valuable both to industry and academia. Archard’s wear model laid the basis for the first generation of theoretical wear estimation algorithms,
M.A. Strickland, Taylor, M., Strickland, M.A., M.R. Dressler, Dressler, M.R., M. Taylor   +5 more
core   +1 more source

Mechanical work performed by individual limbs of transfemoral amputees during step-to-step transitions: Effect of walking velocity [PDF]

, 2014
The greater metabolic demand during the gait of people with a transfemoral amputation limits their autonomy and walking velocity. Major modifications of the kinematic and kinetic patterns of transfemoral amputee gait quantified using gait analysis may ...
Xavier Bonnet, Hélène Pillet, FODÉ, Pascale, Pascale Fodé, VILLA, Coralie, BONNET, Xavier, LAVASTE, François, Francois Lavaste, PILLET, Helene, Coralie Villa   +9 more
core   +1 more source

Prior osteosynthesis—unlike osteotomy—raises revision risk after total knee arthroplasty, predominantly via periprosthetic infection

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Previous knee surgery is discussed as a risk factor for total knee arthroplasty (TKA), yet most reports do not distinguish between osteotomy and osteosynthesis. The German Operationen‐ und Prozedurenschlüssel (OPS)‐based classification was used to compare the impact of these procedures on implant survival, mortality and complications ...
Nele Wagener, Yinan Wu, Alexander Grimberg, Christian Hipfl, Sebastian Hardt   +4 more
wiley   +1 more source

Younger age doubles medium‐term revision risk after total knee arthroplasty: A nationwide multicenter cohort of 5980 knees from the French SCORE I registry

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Although age is a known predictor of outcomes following total knee arthroplasty (TKA), most large‐scale studies rely on registry data that lack clinical detail and combines multiple implant designs. This study aimed to determine whether age has an independent effect on implant survivorship and clinical outcomes when a single TKA design
Alessandro Carrozzo, Émilie Bérard, Ophélie Manchec, Stefano Jacotti, Régis Pailhe, Etienne Cavaignac   +5 more
wiley   +1 more source

Nontraumatic Fracture of the Femoral Condylar Prosthesis in a Total Knee Arthroplasty Leading to Mechanical Failure

Case Reports in Orthopedics, 2014
This paper reports a case of fatigue fracture of the femoral component in a cruciate-retaining cemented total knee arthroplasty (TKA). A 64-year-old man had undergone a primary TKA for osteoarthritis 10 years previously at another institution using the ...
Girish N. Swamy, Conal Quah, Elmunzar Bagouri, Nitin P. Badhe   +3 more
doaj   +1 more source

Visual inspection provides precise intraoperative evaluation of tibial slope during unicompartmental knee arthroplasty

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Accurate reconstruction of the posterior tibial slope (PTS) is essential for successful unicompartmental knee arthroplasty (UKA), yet intraoperative assessment remains challenging without advanced navigation tools. This study evaluated the accuracy of visual intraoperative assessment of PTS changes after tibial resection.
Harun Hawi, Humam Hawi, Emmanouil Liodakis, Nael Hawi, Rüdiger von Eisenhart‐Rothe, Georg Matziolis   +5 more
wiley   +1 more source

Patient reported outcomes improve following lower limb prosthesis and socket replacement

Journal of Patient-Reported Outcomes
Background Prosthetic sockets are fundamental in stabilizing the residual limb and providing a secure attachment for the prosthesis, therefore aiding in achieving a more natural and efficient walking motion.
Todd J. Castleberry, Patsy M. Diaz Delgado, Bretta L. Fylstra, Dwiesha L. England, Kristin E. Nalivaika, Shane R. Wurdeman   +5 more
doaj   +1 more source

Gender-Specific High-Flexion Knee Prosthesis in Indian Women: A Prospective Randomised Study

Journal of Orthopaedic Surgery, 2012
Purpose. To compare outcomes in Indian women who underwent total knee arthroplasty (TKA) using the standard Legacy Posterior Stabilised (LPS) versus the gender-specific LPS high-flexion knee prosthesis. Methods.
Harjoban Singh, Vivek Mittal, Biren Nadkarni, Shekhar Agarwal, Divesh Gulati   +4 more
doaj   +1 more source

Development of a Passive Knee Motion Simulator to Evaluate Deep Knee Flexion of Total Knee Prosthesis

Journal of Biomechanical Science and Engineering, 2009
To evaluate motions and joint reaction forces of the total knee prosthesis during deep knee flexion such as kneeling and sitting straight, a simulator that reproduces the passive motion of the knee has been developed. The main feature of the simulator is
Yasuju TAKANO, Masaru UENO, Kazuo KIGUCHI, Syuya IDE, Masaaki MAWATARI, Takao HOTOKEBUCH   +5 more
doaj   +1 more source