DISCUSSIONS on FACEBOOK
Publications & Reports
Call for Abstracts: 6th International UHMWPE Meeting, Torino Italy, Extended Deadline: June 1, 2013
By popular request, the abstract deadline has been extended to June 1. The University of Torino in collaboration with the Implant Research Center of Drexel University and Exponent is pleased to announce the 6th International UHMWPE Meeting, which will be convened at the Congress Center "Unione Industriale," in Torino Italy, on Thursday and Friday, October 10-11, 2013. The purpose of the meeting is to bring together engineers, scientists, and clinicians from academia and industry and present leading edge research on advancements in medical grade UHMWPE technology and clinical applications. Click here for abstract submission details and instructions.
AuthorKurtz, S
SourceTrans UHMWPE
Year2013
Surface Damage, Oxidation, and Properties of Retrieved Remelted HXLPE Knees
The purpose of this study was to investigate the damage mechanisms and oxidative stability of remelted HXLPEs used in TKR. Remelted HXLPE inserts exhibited lower oxidation indices compared to conventional inserts. We were able to detect slight regional differences within the HXLPE cohort, specifically at the bearing surface. Remelted HXLPE was effective at reducing oxidation in comparison to gamma inert sterilised controls.
AuthorMacDonald, D
SourceInt Orthop
Year2013
ORS 2013 Poster - Are HXLPE Bearings at Risk of Wear from Modular Taper Corrosion?
The purpose of this retrieval study was to characterize fretting and corrosion at head-neck modular interfaces in retrieved conventional and HXLPE THA systems as a function of head size. Researchers also asked whether taper corrosion was associated with increased wear at the PE bearing surface. The results of this retrieval study do not support the hypothesis that 36+ mm ceramic or CoCr femoral heads articulating on HXLPE liners are associated with increased risk of corrosion among HXLPE liners as compared with smaller diameter heads.
AuthorKurtz SM et al.
SourceTrans ORS
Year2013
ORS 2013 Poster - Baseline Properties and Wear Resistance of Vitamin E Containing UHMWPE
This research provides the baseline properties for two new vitamin E-containing UHMW-PE resins for use in total joint replacements. The results of this study indicate that GUR 1020-E and 1050-E are feasible for medical applications in terms of biocompatibility. Also, it has been shown that these grades may be viewed as oxidation resistant UHMW-PE grades, equivalent in mechanical properties and wear resistance to the unblended materials GUR 1020 and 1050.
AuthorKurtz SM et al.
SourceTrans ORS
Year2013
ORS 2013 Poster - Can Pin-on-Disk Testing Be Used to Assess Wear of Retrieved UHMWPE Liners?
The objective of this study was to assess the suitability of using POD testing to ascertain the long-term wear performance of retrieved liners. Multidirectional POD wear testing in a physiologically relevant lubricant was conducted on a Super-CTPOD with 100 stations (Phoenix Tribology, England). The results support the the utility of using modern, multidirectional pin-on-disk testing with a physiologic lubricant as an novel method for evaluating the in vivo wear properties of retrieved hip liners.
AuthorMacDonald DM et al.
SourceTrans ORS 2013
Year2013
ORS 2013 Poster - Retrieval Analysis of Sequentially Annealed Highly Crosslinked Polyethylene Used in THA
This study assesses the oxidative properties, mechanical behavior and reasons for revision of 1st and 2nd generation annealed highly crosslinked polyethylenes used in total hip arthroplasty. Both annealed HXLPE formulations were effective at reducing penetration rates, however, sequential annealing was more effective at reducing oxidation.
AuthorKurtz SM et al.
SourceTrans ORS 2013
Year2013
ORS 2013 Poster - In Vitro Wear Performance of MPC-grafted UHWMPE for THR
The objective of this study was to explore the wear performance of MPC-grafted UHWMPE acetabular liners against cobalt chrome and ceramic femoral counterfaces. The MPC-grafted UHMWPE investigated in this study demonstrated reduced wear under controlled laboratory conditions against both cobalt chrome and ceramic femoral bearing surfaces.
AuthorSiskey et al.
SourceTrans ORS 2013
Year2013
ORS 2013 Poster - Oxidative and Wear Properties of Sequentially Annealed Highly Crosslinked Polyethylene Used In TKA
The consecutive series of total knee replacements investigated the clinical revision reasons, damage mechanisms, and oxidative behavior of second generation highly crosslinked polyethylene. Second generation HXLPEs had similar properties to conventional gamma inert controls.
AuthorKurtz SM et al
SourceTrans ORS 2013
Year2013
ORS 2012 Poster - Impact of Large Diameter and Ceramic Femoral Heads on HXLPE Wear
The purpose of this multicenter retrieval study was to assess the wear behavior of HXLPEs in the context of polyethylene formulation, head size, and head bearing surface. Researchers from Drexel University evaluated whether (1) large diameter (32+ mm) heads would exhibit greater wear than smaller heads (28 mm or less); and (2) if ceramic bearing surfaces would decrease the wear of HXLPE liners.
AuthorKurtz SM et al.
SourceTrans ORS
Year2012
ORS 2012 Poster - Material Performance of 1st and 2nd Generation HXLPEs for THA
The purpose of this multicenter retrieval study was to assess the oxidative stability, mechanical behavior, wear and reasons for revision of 2nd generation HXLPEs and compare them to our ongoing retrieval collection of 1st generation annealed and remelted HXLPEs. Researchers hypothesized the sequentially annealed components would exhibit wear rates similar to 1st generation HXLPEs. It was also hypothesized that 2nd generation HXLPEs would be more oxidatively stable than 1st generation HXLPEs.
AuthorKurtz SM et al.
SourceTrans ORS
Year2012