Lubrication in hip joints
نویسندگان
چکیده
منابع مشابه
Modes of lubrication in human hip joints.
Cadaveric hip joints were tested in a hip function simulator which subjected the femoral head to a cycle of loading and oscillation similar to that experienced during walking and measured the frictional torque transmitted to the acetabulum. Silicone fluids with viscosities from 10-2 Pa s (pascal second) to 30 Pa s were used as lubricants and the transition from mixed to full fluid film lubricat...
متن کاملLubrication and wear modelling of artificial hip joints: A review
The tribological performance of artificial hip joints is a critical issue for their success, because adverse tissue reaction to wear debris causes loosening and failure. Many studies on wear and lubrication of hip prostheses have been published in the last 10 years, mostly on experimental tests. Theoretical/ numerical models have been proposed for investigating geometrical and material paramete...
متن کاملSynovial Joints and Lubrication mechanisms
Synovial joints form the most important feature of the human body as they represent the centers of the most essential and basic activity in the human beings, which is motion. A synovial joint can be described as a load carrying system consisting of two mating bones with tangential and /or normal motions. The bone ends, which are usually spherical in appearance, are covered with a soft sponge li...
متن کاملElasto-hydrodynamic Lubrication Modelling of Spherical Metal-on-metal Aftificial Hip Joints
A full numerical methodology was developed for the elasto-hydrodynamic lubrication analysis of hip joint implants for the lubrication problem in spherical and conformal contacts. Typical results of a metal-on-metal hip implant were obtained to illustrate the applicability of the numerical methodology developed in the present study. INTRODUCTION The important effect of lubrication on long-term s...
متن کامل"Boosted lubrication" in synovial joints by fluid entrapment and enrichment.
The manner in which a human load-bearing synovial joint is able to carry the applied loads has been the subject of speculation for many years. In the past, a number of theories have been advanced each using as a basis one of several modes of lubrication well known to mechanical engineets. More recently some of the more unique characteristics of human cartilage have been recognized, and theories...
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ژورنال
عنوان ژورنال: Annals of the Rheumatic Diseases
سال: 1983
ISSN: 0003-4967
DOI: 10.1136/ard.42.2.238-a