The distribution of oxidation products in irradiated ultra-high molecular weight polyethylene
β Scribed by P. O'Neill; C. Birkinshaw; J.J. Leahy; M. Buggy; T. Ashida
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 551 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0141-3910
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## Abstract The preconditioned stress relaxation behavior of irradiated ultraβhigh molecular weight polyethylene (UHMWPE), a commonly used bearing surface in total joint replacements (TJR), was modelled in uniaxial compression at 37Β°C. Twenty cylindrical specimens (10 mm dia. Γ 27 mm length) were m
Ultra-high molecular weight polyethylene (UHMWPE) was irradiated in air with high-energy (9 MeV), pulsed electron beams to doses ranging from 2.5 to 100 Mrad and subsequently heat treated at 120Β°C for a time period of 120 min. Surface characterization of the target side of irradiated UHMWPE samples
## Abstract Oxidative degradation of ultraβhigh molecular weight polyethylene (UHMWPE) attributed to sterilization by gammaβradiation in the presence of air has been cited as one of the major causes of premature wear in total joint arthroplasty. For example, in retrieved UHMWPE tibial bearings, not