Method for assessment of distribution of UHMWPE wear particles in periprosthetic tissues in total hip arthroplasty

0340263 - ÚMCH 2010 RIV CZ eng J - Journal Article
Pokorný, D. - Šlouf, Miroslav - Horák, Zdeněk - Jahoda, D. - Entlicher, G. - Eklová, S. - Sosna, A.
Method for assessment of distribution of UHMWPE wear particles in periprosthetic tissues in total hip arthroplasty.
Acta chirurgiae orthopaedicae et traumatologiae Čechoslovaca. Roč. 73, č. 4 (2006), s. 243-250. ISSN 0001-5415
R&D Projects: GA ČR GA106/04/1118
Institutional research plan: CEZ:AV0Z40500505
Keywords : wear * polyethylene * total hip arthroplasty
Subject RIV: CD - Macromolecular Chemistry
http://www.achot.cz/cislo.php?cis=5

Aseptic loosening of implants is the main complication affecting the lifetime of total joint replacements (TJR). The highest proportion of loosening occurs due to osteolysis produced by the presence of ultra-high molecular weight polyethylene (UHMWPE) wear particles smaller than 1 µm. These can be identified by microscopic, spectroscopic or light-scattering methods. Here we describe our method for counting wear particles, based on the principle of light scattering and called LSc. The results of LSc method proved that distribution of particles in periprosthetic zones in THA was uneven. The highest number of particles was found in the neighboring zone III and zone 7, as described by Gruen and DeLee, which was in agreement with orthopedic evaluation of TJR failures.
Permanent Link: http://hdl.handle.net/11104/0183543