Results 121 to 130 of about 534,499 (388)

Effects of extended stance time on a powered knee prosthesis and gait symmetry on the lateral control of balance during walking in individuals with unilateral amputation

Journal of NeuroEngineering and Rehabilitation, 2019
Background Individuals with lower limb amputation commonly exhibit large gait asymmetries that are associated with secondary health issues. It has been shown that they are capable of attaining improved temporal and propulsive symmetry when walking with a
Andrea Brandt, He ( Helen) Huang
doaj   +1 more source

Design of Custom Made Prosthesis of the Hip

Tehnicki vjesnik - Technical Gazette, 2019
Replacement of a natural hip joint with an artificial is one of the most commonly used surgical procedures in orthopaedic surgery. This paper describes the methodology of the hip joint prosthesis design, which presents the foundation for the automation of all stages of the development of custom-made prostheses. A general mathematical model based mostly
Tabakovic S, Zeljkovic M, Milojevic Z, Zivkovic A   +3 more
openaire   +5 more sources

Unrestricted kinematic alignment offers limited functional benefit over mechanical alignment in medial pivot total knee arthroplasty: A randomized controlled trial using conventional instrumentation

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose The aim of this randomized controlled trial was to compare clinical outcomes between kinematic alignment (KA) and mechanical alignment (MA) in total knee arthroplasty (TKA) using a medial‐pivot (MP) prosthesis and conventional instrumentation.
Amir Koutp, Rene Schroedter, Lukas Leitner, Ines Vielgut, Andreas Leithner, Patrick Sadoghi   +5 more
wiley   +1 more source

Effects of Prosthesis Mass on Hip Energetics, Prosthetic Knee Torque, and Prosthetic Knee Stiffness and Damping Parameters Required for Transfemoral Amputees to Walk With Normative Kinematics [PDF]

, 2014
We quantify how the hip energetics and knee torque required for an above-knee prosthesis user to walk with the kinematics of able-bodied humans vary with the inertial properties of the prosthesis. We also select and optimize passive mechanical components
Narang, Yashraj Shyam, Winter, Amos
core   +1 more source

Five-year results of a cementless short-hip-stem prosthesis

Orthopedic Reviews, 2013
Hip prosthesis stems with a short stem length and proximal fixation geometry support a bone-preserving and muscle-sparing implantation and should also allow for revision surgery with a standard hip stem.
R. Wittenberg, R. Steffen, H. Windhagen, Petra Bücking, Andreas Wilcke   +4 more
semanticscholar   +1 more source

Similar fixation of total knee arthroplasty components with medial congruent and cruciate retaining polyethylene inserts. A randomised double‐blinded controlled radiostereometry trial with 24 months of follow‐up

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To assess the influence of a higher constraint medial congruent (MC) versus a cruciate retaining (CR) (gold standard) polyethylene insert on the migration of cemented tibial and femoral components of the Persona Total Knee System. High‐constraint inserts may increase forces on components and potentially affect implant migration and ...
Carl Christian Holkgaard Burvil, Karina Nørgaard Linde, Maiken Stilling, Torben Bæk Hansen, Jesper Dalsgaard, Søren Rytter, Daan Koppens, Emil Toft Petersen   +7 more
wiley   +1 more source

Good function but very high concentrations of cobalt and chromium ions in blood 37 years after metal-on-metal total hip arthroplasy

Medical Devices: Evidence and Research, 2008
Per WretenbergDepartment of Molecular Medicine and Surgery, Section of Orthopaedics, Karolinska Institute, Karolinska University Hospital, Solna, Stockholm, SwedenAbstract: This case report describes a patient who had a metal-on-metal hip prosthesis ...
Per Wretenberg
doaj  

Quantitative analysis of bone reactions to relative motions at implant-bone interfaces [PDF]

, 1993
Connective soft tissues at the interface between implants and bone, such as in human joint replacements, can endanger the stability of the implant fixation. The potential of an implant to generate interface bone resorption and form soft tissue depends on
Brunski, Brunski, Carey, Carter, Cowin, Draenert, Eftekar, Feith, Goldring, Gruen, H Weinans, H.J Grootenboer, Harris, Hori, Hori, Huiskes, Huiskes, Huiskes, Huiskes, Kozinn, Krause, Kölbel, Lewis, Ling, Pauwels, Perren, Perren, Pizzoferrato, R Huiskes, Santare, Schneider, Spector, Stauffer, Stone, Strens, Søballe, Søballe, Uhthoff, Vanderby, Walker, Weinans, Willert   +41 more
core   +4 more sources

Is the hip prosthesis responsible for this rash? [PDF]

JAAD Case Reports, 2018
Caitlyn T. Reed, Stephen E. Helms, Chelsea S. Mockbee, Robert T. Brodell   +3 more
openaire   +4 more sources

Good results in postoperative and hematogenous deep infections of 89 stable total hip and knee replacements with retention of prosthesis and local antibiotics

Acta Orthopaedica, 2013
Background Deep postoperative and hematogenous prosthesis infections may be treated with retention of the prosthesis, if the prosthesis is stable. How long the infection may be present to preclude a good result is unclear.
J. Geurts, Daniël M C Janssen, A. Kessels, G. Walenkamp   +3 more
semanticscholar   +1 more source