Results 41 to 50 of about 57,251 (344)

The Markov model of a dynamic system based on experimental data for control problems of bionic prostheses [PDF]

arXiv, 2022
This article is devoted to a prediction of gait kinematics based on the Markov chains in the delay space. We use hypercubic grid in the delay space of angles in the sagittal plane in the knee and hip joints to construct Markov states. Our experimental signal (obtained from the telemetry of the prosthesis) provides transition probabilities.
arxiv  

The Position and Stability of the Prosthesis in Severely Deformed DDH Artificial Total Hip Replacement [PDF]

, 2020
Objectives: To analyze the correlation of prosthesis position selection during total hip replacement with clinical short and middle-term effects of Crowe III and Crowe IV hip dislocation. Methods: Clinical data of 28 cases of dysplasia and dislocation of
Bin, Liu, Dagvasumberel, Gonchigsuren, Kang, Alamusi, Liang-jia, Ding, Orgoi, Sergelen   +4 more
core   +1 more source

Results of the Total Hip Arthroplasty Using 3D Printing Technology

Central Asian Journal of Medical Sciences, 2020
Objectives: To study the value of 3D printing of custom THA femoral prostheses with conventional femoral prostheses in total hip arthroplasty for severe hip deformity.
Alamusi Kang, Sergelen Orgoi, Munkhbayarlakh Sonomjamts, Gonchigsuren Dagvasumberel   +3 more
doaj   +1 more source

A critical comparison of methods for the determination of the ageing sensitivity in biomedical grade yttria stabilized zirconia [PDF]

Journal of Biomedical Materials Research 72(2), 239-245 (2005), 2017
Since the recent failure events of two particular series of zirconia femoral heads for total hip replacement prosthesis, a large decrease in the use of zirconia ceramics for orthopaedic implants has been observed. In spite of the biomedical success of this material during the last ten years, this was required for safety reasons, until the cause of the ...
arxiv   +1 more source

Hip Forgotting After Hip Prosthesis in Cotonou

Journal of Physical Medicine Rehabilitation Studies & Reports, 2021
After a hip prosthesis, an increasingly targeted goal is hip forgetfulness. What about this result in Benin. Objective: To study hip forgetting after hip prosthesis in Benin. Methods: Prospective study with a descriptive and analytical aim carried out from February to October 2019.
Cotonou, Alagnide Hountondji Etienne, Traumatological, Chigblo Pascal   +3 more
openaire   +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

Pembersih bilah kipas siling [PDF]

, 2020
Kebanyakan rumah pada kebiasaannya mempunyai kipas siling tidak kira samada rumah moden atau tradisional. Kipas siling merupakan sejenis kipas yang digantung pada bahagian atas rumah untuk mengitar udara melalui bilah-bilah kipas berputar (Norfarahanim ...
Abdul Halim, Muhammad Hazim, Ismail, Muhammad Fikri Syazani, Ismail, Suhairi, Kamaruddin, Syamsul Azrin, Mohammad Noor, Hafsa, Mohammad Sauti, Muhammad Amir Aiman   +5 more
core  

Estimation of Dose Perturbation Due to the Presence of Metal Hip Prostheses in Radiotherapy with Electron and Photon Beams: A Monte Carlo Study

Frontiers in Biomedical Technologies
Purpose: The impact of various hip prosthesis materials on the amount of dose perturbation generated by 9 MeV electron and 18 MV photon beams during pelvic radiation therapy is analyzed in this research.
Morteza Hashemizadeh, Mansour Zabihzadeh, Omid Azadbakht, Masoud Jamali   +3 more
doaj   +1 more source

Using deep learning generated CBCT contours for online dose assessment of prostate SABR treatments

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Prostate Stereotactic Ablative Body Radiotherapy (SABR) is an ultra‐hypofractionated treatment where small setup errors can lead to higher doses to organs at risk (OARs). Although bowel and bladder preparation protocols reduce inter‐fraction variability, inconsistent patient adherence still results in OAR variability.
Conor Sinclair Smith, Isabelle Gagne, Karl Otto, Carter Kolbeck, Joshua Giambattista, Abraham Alexander, Sonja Murchison, Andrew Pritchard, Erika Chin   +8 more
wiley   +1 more source

Prediction of time to prosthesis implantation as a function of joint anatomy in patients with developmental dysplasia of the hip [PDF]

, 2019
BACKGROUND: Developmental dysplasia of the hip (DDH) can lead to pain and premature secondary osteoarthritis at an early stage. Joint-preserving osteotomy is an established solution to this problem.
Müller, Michael, Perka, Carsten, Rakow, Anasthasia, Wassilew, Georgi I., Winkler, Tobias   +4 more
core   +1 more source