High failure rates of the Spectron EF stem at a minimum of 10 year's follow-up.
Lewis, James
Lewis, James
Abstract
We prospectively followed 112 hips, undergoing THA with a Spectron EF stem. At mean follow-up of 11.2years, 21 patients had died. We obtained radiological follow-up in 99% and clinical follow-up in 100% of the surviving 91 hips. Fifty-four percent demonstrated osteolysis in at least one Gruen zone. Twenty-two hips required revision for all causes, with a further five stems radiologically loose. With endpoint being stem revision for aseptic loosening or radiological failure, survivorship at 11years was 0.783. We believe the addition of a rougher surface finish has contributed to the high levels of osteolysis and stem failure seen with the Spectron EF.
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Date
2014-10
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Article
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Citation
J Arthroplasty. 2014 Oct;29(10):1956-60. doi: 10.1016/j.arth.2014.05.003. Epub 2014 May 10