Results 41 to 50 of about 547,714 (306)

A novel hybrid design and modelling of a customised graded Ti-6Al-4V porous hip implant to reduce stress-shielding: An experimental and numerical analysis

Frontiers in Bioengineering and Biotechnology, 2023
Stress shielding secondary to bone resorption is one of the main causes of aseptic loosening, which limits the lifespan of hip prostheses and exacerbates revision surgery rates.
Seyed Ataollah Naghavi, M. Tamaddon, Pilar Garcia-Souto, M. Moazen, S. Taylor, J. Hua, Chaozong Liu   +6 more
semanticscholar   +1 more source

Transient elastohydrodynamic lubrication analysis of a novel metal-on-metal hip prosthesis with a non-spherical femoral bearing surface

, 2011
Effective lubrication performance of metal-on-metal hip implants only requires optimum conformity within the main loaded area, while it is advantageous to increase the clearance in the equatorial region.
Anissian H.L., Bergmann G., Calonius O., Catelas I., Dobbs H.S., Dowson D., Firkins P.J., Gao LM, Grubl A., Hu X.Q., Jacobs J.J., Lee R., Liu F., Meng Q.E., Meng QE, Rieker C., Skipor A.K., Tuke M.A., Venner C.H., Wang F.C., Yao J.Q.   +20 more
core   +1 more source

Influence of cementless hip stems on femoral cortical strain pattern depending on their extent of porous coating [PDF]

, 2012
The extent of porous coating of cementless total hip stems is held responsible for radiological periprosthetic changes, the rate of thigh pain, and even its long-term success.
Bader, Rainer, Ellenrieder, Martin, Mittelmeier, Wolfram, Steinhauser, Erwin   +3 more
core   +1 more source

Evaluation of dose calculation accuracy of treatment planning systems at hip prosthesis interfaces

Journal of Applied Clinical Medical Physics, 2017
&NA; There are an increasing number of radiation therapy patients with hip prosthesis. The common method of minimizing treatment planning inaccuracies is to avoid radiation beams to transit through the prosthesis.
D. Paulu, P. Alaei
semanticscholar   +1 more source

Prospective five-year subsidence analysis of a cementless fully hydroxyapatite-coated femoral hip arthroplasty component [PDF]

, 2014
Early subsidence >1.5 mm is considered to be a predictive factor for later aseptic loosening of the femoral component following total hip arthroplasty (THA).
Clauss, Martin, Goossens, Marc, Van Der Straeten, Catherine   +2 more
core   +1 more source

Evaluation of the accuracy of various dose calculation algorithms of a commercial treatment planning system in the presence of hip prosthesis and comparison with Monte Carlo

Journal of Cancer Research and Therapeutics, 2017
Purpose: High atomic number elements are commonly used in a hip prosthesis which can cause uncertainty in accurate dose calculations in radiation therapy.
K. Mohammadi, Mohsen Hassani, M. Ghorbani, Bagher Farhood, C. Knaup   +4 more
semanticscholar   +1 more source

Visual grading evaluation of commercially available metal artefact reduction techniques in hip prosthesis computed tomography

British Journal of Radiology, 2016
Objective: To evaluate metal artefact reduction (MAR) techniques from four CT vendors in hip prosthesis imaging. Methods: Bilateral hip prosthesis phantom images, obtained by using MAR algorithms for single-energy CT data or dual-energy CT (DECT) data ...
K. Andersson, Eva Norrman, H. Geijer, Wolfgang Krauss, Yang Cao, Johan Jendeberg, M. Geijer, M. Lidén, P. Thunberg   +8 more
semanticscholar   +1 more source

Causes of the Most Frequent Hips Out of Patients Following Total Hip Replacement

Southern Clinics of Istanbul Eurasia, 2018
INTRODUCTION[|]Hip dislocation is a complication seen after total hip replacement. The aim of this study was to determine the positions and movements in which dislocation occurred in order to provide additional guidance in terms of precautions to be ...
Tansel Mutlu, Ali Ramazan Benli
doaj   +1 more source

Data-Mined Continuous Hip-Knee Coordination Mapping With Motion Lag for Lower-Limb Prosthesis Control

IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2022
Trajectory planning of the knee joint plays an essential role in controlling the lower limb prosthesis. Nowadays, the idea of mapping the trajectory of the healthy limb to the motion trajectory of the prosthetic joint has begun to emerge.
Yang Lv, Jian Xu, Hongbin Fang, Xiaoxu Zhang, Qining Wang   +4 more
doaj   +1 more source

Successful treatment of periprosthetic joint infection caused by Granulicatella para-adiacens with prosthesis retention: a case report. [PDF]

, 2016
Granulicatella and Abiotrophia spp. are difficult to detect due to their complex nutritional requirements. Infections with these organisms are associated with high treatment failure rates.
Borens, O., Chevaux, F., Renz, N., Trampuz, A.   +3 more
core   +2 more sources