 LONDON, Aug. 30, 2021 PRNewswire -- SmithNephew LSE:SN, NYSE:SNN, the global medical technology business, today announces its proprietary OXINIUM Oxidized Zirconium Technology has established itself as the best performing bearing with the lowest risk of revision in total hip arthroplasty THA1-4, alongside similarly strong clinical performance in knees.5 These results are substantiated by four national and regional joint registries1-4 over the last 20 years with more than 2 million procedures4 to draw from. Through a unique manufacturing process, the zirconium alloy material transforms and hardens through oxidation. 