Fracture simulation for zirconia toughened alumina microstructure [PDF]
Engineering Computations 30, 5 (2013) 648-664, 2013 Purpose - The purpose of this paper is to describe finite element modelling for fracture and fatigue behaviour of zirconia toughened alumina microstructures. Design/methodology/approach - A two-dimensional finite element model is developed with an actual $Al{_2}O{_3}$ - 10 vol% $ZrO{_2}$ microstructure. A bilinear, time-independent cohesive zone law is
Forest, Bernard +2 more
arxiv +7 more sources
Performance of the resurfaced hip. Part 1: The influence of the prosthesis size and positioning on the remodelling and fracture of the femoral neck [PDF]
, 2009 Hip resurfacing is an established treatment for osteoarthritis in young active patients. Failure modes include femoral neck fracture and prosthesis loosening, which may be associated with medium-term bone adaptation, including femoral neck narrowing and ...
Alex Dickinson +2 more
openalex +2 more sources
Trends of mechanical consequences and modeling of a fibrous membrane around femoral hip prostheses [PDF]
, 1990 In the present study, the effects of a fibrous membrane between cement and bone in a femoral total hip replacement were investigated. The study involved the problem of modeling this fibrous membrane in finite-element analyses, and its global consequences
Brand +28 more
core +17 more sources
SYSTEM FOR IN VITRO PRIMARY STABILITY ANALYZIS OF CEMENTED HIP PROSTHESIS [PDF]
Annals of the Oradea University: Fascicle Management and Technological Engineering, 2014 This paper presents a simple embodiment of the system that can be used for the primary stability analysis of the cemented hip prosthesis. The proposed variant is based on experimental test stand for hip prostheses (in terms of tribology) found in ...
Corneliu Druga
doaj +1 more source
Early detection of hip periprosthetic joint infections through CNN on Computed Tomography images [PDF]
, 2023 Early detection of an infection prior to prosthesis removal (e.g., hips, knees or other areas) would provide significant benefits to patients. Currently, the detection task is carried out only retrospectively with a limited number of methods relying on biometric or other medical data.
arxiv +1 more source
Labral calcification plays a key role in hip pain and symptoms in femoroacetabular impingement
Journal of Orthopaedic Surgery and Research, 2020 Background Hip osteoarthritis (HOA) is the most common hip disorder and a major cause of disability in the adult population, with an estimated prevalence of end-stage disease and total hip replacement.
Giovanni Trisolino +12 more
doaj +1 more source
Clinical treatment of femoral head using Thompson hip prosthesis [PDF]
, 2020 Background: Hip prosthesis is a successful surgical technique the treatment of hip joint fracture. Thompson hip prosthesis is commonly used treatment of femoral head fracture.
Katiyar, Ankit +3 more
core +2 more sources
Calculation of wear (f.i. wear modulus) in the plastic cup of a hip joint prosthesis [PDF]
, 1975 The wear equation is applied to the wear process in a hip joint prosthesis and a wear modulus is defined. The sliding distance, wear modulus, wear volume, wear area, contact angle and the maximum normal stress were calculated and the theoretical ...
Ligterink, D.J.
core +3 more sources
Powered Prosthesis Locomotion on Varying Terrains: Model-Dependent Control with Real-Time Force Sensing [PDF]
RA-L 7(2):5151-5158, 2022, 2021 Lower-limb prosthesis wearers are more prone to falling than non-amputees. Powered prostheses can reduce this instability of passive prostheses. While shown to be more stable in practice, powered prostheses generally use model-independent control methods that lack formal guarantees of stability and rely on heuristic tuning.
arxiv +1 more source
Revision of the uncemented hip prosthesis [PDF]
Acta Orthopaedica Scandinavica, 1987 In a series of 213 consecutive total hip replacements a.m. Lubinus, the clinical course after 72 revisions and 141 primary procedures was compared after 5 years. The revised THRs were uncemented Ring prostheses. Dislocation and peroperative fracture were more common in the revision group.
Finn B. Christensen +4 more
openaire +3 more sources