Improved UHMWPE through the control of sterilization dose and atmosphere

Hamilton, John; Schmidt, M.B.; Greer, Keith W.; Shah, Chirag B.

doi:10.1016/s0969-806x(98)00154-6

Cited by 8 publications

(8 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The formation of these new lamellae reduces lamellar periodicity. Similar formation of new lamellae was observed after long‐term storage of irradiated UHMWPE 11, 17, 18, 42…”

Section: Discussionsupporting

confidence: 75%

“…Similar formation of new lamellae was observed after long-term storage of irradiated UHMWPE. 11,17,18,42…”

Section: Discussionmentioning

confidence: 99%

“…Modification of UHMWPE structure with respect to the mentioned aim has been studied. It was proved that ionizing radiation under proper conditions and/or in combination with postradiation treatment can lead to desired structural changes 10–24. These changes, in particular the crosslinking of polymer chains, considerably increase wear resistance 25–27.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Structure modification of UHMWPE used for total joint replacements

et al. 2005

View full text Add to dashboard Cite

Modification of ultrahigh-molecular-weight polyethylene (UHMWPE) consisting of a combination of gamma irradiation and subsequent thermal treatment has been performed in order to investigate the resultant changes to its supramolecular structure. In the first step the polymer was irradiated by gamma rays at laboratory temperature under nitrogen. Five radiation doses (25, 50, 100, 150, and 200 kGy) were applied at two dose rates (0.25 and 2.5 kGy/h). In the second step the irradiated samples were thermally treated above the UHMWPE melting temperature. Insoluble fraction, crystallinity (fraction), and lamellar periodicity were determined as functions of dose and dose rate for irradiated samples before and after thermal treatment. Both modification steps were shown to produce substantial changes in the UHMWPE structure.

show abstract

“…The formation of these new lamellae reduces lamellar periodicity. Similar formation of new lamellae was observed after long‐term storage of irradiated UHMWPE 11, 17, 18, 42…”

Section: Discussionsupporting

confidence: 75%

“…Similar formation of new lamellae was observed after long-term storage of irradiated UHMWPE. 11,17,18,42…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Structure modification of UHMWPE used for total joint replacements

et al. 2005

View full text Add to dashboard Cite

show abstract

“…In spite of these excellent properties, failure of this polymer is often observed as a result of its wear (Benson, 2002;Buchalla et al, 1995). The wear of UHMWPE in total joint replacement components is considered to be the primary problem in orthopaedics today (Hamilton et al, 1998). Such an application of the polymer requires its stability during the process of production and preparation through to implantation and the resistance in the service conditions as well.…”

Section: Introductionmentioning

confidence: 99%

“…The wear resistance of UHMWPE under different ageing conditions has also been extensively studied recently Avanzini, 2008;Edidin et al, 2000Edidin et al, , 2001Goswani and Alhassan, 2008;Hamilton et al, 1998;Kurtz et al, 2008;Lee and Pienkowski, 1997;Lu et al, 2003;Pruitt, 2003;Song et al, 1999;Streicher, 1995;Suh et al, 1998;Toohey et al, 2003;Wang et al, 1997).…”

Section: Introductionmentioning

confidence: 99%