Exclusive bearing technology for hips
Designed for wear performance and corrosion avoidance, to improve patient outcomes (1-4)
A proprietary construction of OXINIUM™ oxidized zirconium and highly cross-linked polyethylene (XLPE), offering a versatile bearing combination capable of avoiding ceramic-like fractures (5).
Having demonstrated the highest survivorship of all bearing couples for cementless total hip arthroplasty (THA), using VERILAST may positively impact long-term outcomes (6).
[IMG1] Revision rates in total hip arthroplasty using OXINIUM were just 2.5% and 3.5% at 5 years and 9 years respectively*(7).
[IMG2] 96.5% survivorship at 10 years and a 33% lower revision risk from 3 months, compared to other bearing types** (8).
Superior wear performance and clinical survivorship (1, 9-11)
With a clinical heritage dating back to 2004, OXINIUM incorporates a metal that undergoes transformation to create a ceramic surface with an unmodified core-metal substrate, highly resistant to fracture or peeling.
VERILAST Technology for THA has been laboratory tested for up to 45 million cycles against other bearing choices and has demonstrated superior clinical survivorship (1).
[IMG] – Comparison graph, Referenced- Parikh
Built to avoid corrosion (2-4) and improve patient outcomes
The biocompatible oxidized zirconium in VERILAST has demonstrated reduced taper corrosion in total hip arthroplasty, minimising trunnionosis (2-4).
In a 22-year database, OXINIUM femoral heads demonstrated decreased corrosion damage compared to CoCr, with a complete absence of chromium-rich deposits (4).
[IMG – corrosion comparison – Referenced Cartner
Backed by clinical evidence
[IMG4] Patients who are intolerant of other bearing types may tolerate OXINIUM (12-14).
View more evidence and browse surgical resources here.
For further information on VERILAST, or to arrange a discussion with a Smith & Nephew representative:
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*209,912 primary THAs with non-metal-on-metal implants registered in the Dutch Arthroplasty Register, 2007-2016, with a maximum 10-year follow-up. 6 most frequently employed bearing types compared: CoHXPLE n=70,715, CoPE n=40,109, MoPE n=37,351, MoHXLPE n=32,867, CoC n=17,625, OxHXLPE n=11,875.
**According to a 2018 report. 33% revision risk: ceramicised metal/XLPE vs metal/XLPE. 0-3 months: HR=1.10 (0.96, 1.27), p=0.150. 3 months+: HR: 0.67 (0.60, 0.76), p<0.001.
References:
1) Parikh et al. “Long-term simulator wear performance of an advanced bearing technology for THA,” Orthop Res Soc, San Antonio,TX, Jan 26-29, 2013, 1028.
2) Pawar et al. Acidic Fretting Tests of Oxidized Zr-2.5Nb, CoCr, and SS Femoral Heads, ASMI, 2004.
3) Li C, Parikh A, Sprague J, Pawar V. Mechanically assisted crevice corrosion on CoCrMo heads after long-term hip simulator wear testing. Poster 0270 presented at ORS Congress 2015. NV, USA.
4) Cartner, J et al. Characterization of Femoral Head Taper Corrosion Features Using a 22-year Retrieval Database.HSS Jrnl (2017) 13: 35. https://doi.org/10.1007/s11420-016-9517-5.
5) Hunter, G et al. Creation of Oxidized Zirconium Orthopaedic Implants. Journal of ASTM International, July/August 2005, Vol. 2, No. 7 Paper ID JAI12775.
6) Atrey A, Ancarani C, Fitch D, Bordini B. Impact of bearing couple on long-term component survivorship for primary cementless total hip replacement in a large arthroplasty registry. Poster presented at: Canadian Orthopedic Association; June 20-23, 2018; Victoria, British Columbia, Canada.
1) Peters RM, Van Steenbergen LN, Stevens M, Rijk PC, Bulstra SK, Zijlstra WP. The effect of bearing type on the outcome of total hip arthroplasty. Acta Orthop. 2018:89; 163–169.
2) Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR). Hip, Knee & Shoulder Arthroplasty, 2018 Annual Report. Adelaide, AOA, 2018. Accessed November 16, 2018. Available from https://aoanjrr.sahmri.com/annual-reports-2018
3) Al-Khateeb H, Teeter M, Naudie D, McCalden RW. Oxidised zirconium versus cobalt-chromium in THA: analysis of retrieved acetubular liners. Orthopaedic Proceedings. 2016; 98-B:(Supp 1)14-14. Abstract only.
4) Jassim S, Patel S, Wardle N, et al. Five-yearcomparison of wear using oxidised zirconium and cobalt–chrome femoral heads in total hip arthroplasty. Bone Joint J. 2015; 97:883-889.
5) Papannagari R, Hines G, Sprague J. Long-term wear performance of an advanced bearing technology for TKA. Poster 1141
6) Mihalko WM, Goodman SB,Amini M, Hallab N. Metal sensitivity testing and associated total joint outcomes. Poster presented at AAOS Biomedical Engineering and Biological Implants Committees, 2013.
7) Caicedo M, Pawar V, Hallab N. Oxidized Zr-alloy particles induce a lower incidence of in vitro lymphocyte metal-sensitivity responses compared to cobalt and titanium implant alloys. Poster 0946 presented at ORS Congress 2014. LA, USA.
8) Hallab NJ, McAllister K, Jacobs JJ, Pawar V. Zirconium-alloy and zirconium-oxide particles produce less toxicity and inflammatory cytokines than cobalt-alloy and titanium-alloy particles in vitro, in human osteoblasts, fibroblasts and macrophages. Poster 0971 presented at ORS Congress 2012. CA, USA.
9) Al-Khateeb H, Teeter M, Naudie D, McCalden RW. Oxidised zirconium versus cobalt-chromium in THA: analysis of retrieved acetubular liners. Orthopaedic Proceedings. 2016; 98-B:(Supp 1)14-14. Abstract only.
10) Jassim S, Patel S, Wardle N, et al. Five-yearcomparison of wear using oxidised zirconium and cobalt–chrome femoral heads in total hip arthroplasty. Bone Joint J. 2015; 97:883-889.
11) Papannagari R, Hines G, Sprague J. Long-term wear performance of an advanced bearing technology for TKA. Poster 1141 presentedat ORS Congress 2011. CA, USA.
12) Mihalko WM, Goodman SB,Amini M, Hallab N. Metal sensitivity testing and associated total joint outcomes. Poster presented at AAOS Biomedical Engineering and Biological Implants Committees, 2013.
13) Caicedo M, Pawar V, Hallab N. Oxidized Zr-alloy particles induce a lower incidence of in vitro lymphocyte metal-sensitivity responses compared to cobalt and titanium implant alloys. Poster 0946 presented at ORS Congress 2014. LA, USA.
14) Hallab NJ, McAllister K, Jacobs JJ, Pawar V. Zirconium-alloy and zirconium-oxide particles produce less toxicity and inflammatory cytokines than cobalt-alloy and titanium-alloy particles in vitro, in human osteoblasts, fibroblasts and macrophages. Poster 0971 presented at ORS Congress 2012. CA, USA.