The present evidence indicated the similar performance in survivorship among CoC , CoPc , CoPxl and MoPxl bearing implants , and that all likely have superiority compared with the MoM and MoPc bearing implants in THA procedures .
PURPOSE Although many  total hip bearing implants  are widely used all over the world , simultaneous comparisons across the numerous available bearing surfaces are rare .
The purpose of this study was to compare the survivorship of total hip arthroplasty ( THA ) with six available bearing implants .
A randomized controlled trial comparing Oxinium and cobalt-chrome on standard and cross-linked polyethylene.
The purpose of the investigation was to assess the clinical and radiographic outcomes in four bearing surfaces . Eighty patients ( 91 hips ) undergoing total hip arthroplasty between 2004 and 2007 were r and omized to one of four bearing surfaces : ( 1 ) cobalt-chrome ( CoCr ) and ultra-high molecular weight polyethylene ( UHMWPE ) ; ( 2 ) CoCr and XLPE ; ( 3 ) Oxinium and UHMWPE ; and ( 4 ) Oxinium and XLPE . The mean follow-up for this study was 6.8 years . There were no significant differences in clinical outcomes . The linear wear rates for the four groups were 0.241 mm/year , 0.076 mm/year , 0.238 mm/year and 0.061 mm/year respectively . HXLPE results in significantly less wear than UHMWPE . However , we found no significant reduction in wear rate by using Oxinium in place of CoCr femoral heads at early follow-up
The present evidence indicated the similar performance in survivorship among CoC , CoPc , CoPxl and MoPxl bearing implants , and that all likely have superiority compared with the MoM and MoPc bearing implants in THA procedures .
PURPOSE Although many  total hip bearing implants  are widely used all over the world , simultaneous comparisons across the numerous available bearing surfaces are rare .
The purpose of this study was to compare the survivorship of total hip arthroplasty ( THA ) with six available bearing implants .