TRIBOLOGICAL AND MATERIAL CONDITIONINGS OF THE HIP ENDOPROSTHESES APPLICATION
Journal Title: Tribologia - Year 2009, Vol 223, Issue 1
Abstract
Hip joint arthroplasty is a common operation at the Orthopaedic Surgery Departments. An increasing demand for implantation of the hip joints results from: longer and longer life span, improper nutrition and increasing amount of people with advanced osteoporosis, growing amount of the car collisions, which result in bonearticular injuries, adverse weather conditions (long snowy winters). In addition, the amount of people who need reimplantation of the endoprostheses, which have been used for 10-15 years, grows significantly. Loosening of the endoprostheses elements (mostly acetabular cup) or their wear are the main reason for reimplantation. The growing demand for hip endoprostheses inspires many scientific and research centres to work for improvement in endoprosthesis quality. The works concentrate on following problems: increase in endoprostheses durability, improvement in endoprosthesis functionalities by minimisation the frictional resistance and decrease in over-rigidity of the implant- bone system, limitation of the wear products, making reimplantation easier and assurance the better stability of endoprostheses clamping. In the paper hip joint as a tribological system is charcterised. Some destructive processes occurring in arthroplasty are discussed. Methods of the increase in wear resistance of polyethylene are presented. Moreover, the necessary conditions during modelling of the endoprostheses and new directions of endoprostheses development are given.<br/><br/>
Authors and Affiliations
Monika Gierzyńska-Dolna, Hanna Wiśniewska-Weinert, Janina Adamus
Keywords
Related Articles
- EP ID EP516613
- DOI -
- Views 45
- Downloads 0
EVALUATION OF THE HOMOGENEITY OF THE WORKING SURFACE OF CAST IRON BRAKE DISCS
This article deals with the one of the most important elements of modern braking systems, which is a brake disc. A brake disc is the one of more stressed parts of the braking system, and its quality and design largely de...
THE TRIBOLOGICAL CHARACTERISTICS OF THE POLYMER COMPOSITION IN THE RECIPROCATING MOTION IN THE PRESENCE OF ABRASIVE MATERIALS
The article presents the results of the studies of resistance to abrasive wear of regenerative chemically curable a metal–polymer composite. The metal–polymer composite is used for the regeneration of guide systems of cu...
PROPERTIES OF PLASMA AND HVOF SPRAYED COATINGS
Nowadays plasma spraying and supersonic spraying processes are widely applied in many branches of industry. This paper presents current achievements in this area and the results of investigations of plasma and supersonic...
IRON POROUS SLEEVES WITH MICRO-SEGMENTS ON THEIR SLIDING SURFACE, MADE WITH THE LASER TECHNIQUE
In this article some results of the research on a new generation slide porous sleeves is presented. The sleeves are sintered from Höganas NC.100.24 iron powder, with 2.5% addition by weight of copper, with micro-segments...
WPŁYW WYBRANYCH DODATKÓW NA NOŚNOŚĆ WARSTWY SMAROWEJ SKOJARZEŃ CIERNYCH Z ELEMENTAMI POKRYTYMI POWŁOKĄ a-C:H:W. CZĘŚĆ II. WYBRANE ZWIĄZKI ORGANICZNE ZAWIERAJĄCE SIARKĘ I FOSFOR
Artykuł jest kontynuacją wcześniejszych prac i zawiera wyniki badań organicznych związków siarki i fosforu jako potencjalnych dodatk ów przeciwzużyciowych dla wysokoobciążonych węzłów tarcia z elementami pokrytymi powłok...