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Table 1 Various types of UHMWPE, explanted from joint replacements that failed due to aseptic loosening

From: Quantification of structural changes of UHMWPE components in total joint replacements

Sample Joint Manufacturer Processing conditions Year of implantation Years in vivo
L1 hip DePuy / J&J Noncrosslinked; gamma sterilized 1996 11
L2 knee Walter Motorlet Noncrosslinked; gamma sterilized 1987 20
L3 hip Beznoska sro Noncrosslinked; gamma sterilized 1991 16
L4 hip Beznoska sro Noncrosslinked; gamma sterilized 1996 10