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Co-Cr Head Roughness and its Effect on Wear of UHMWPE and XLPE Cups
| Content Provider | Semantic Scholar |
|---|---|
| Author | Donaldson, T. Massihi, Allen Bowsher, John G. Clarke, Ian C. |
| Copyright Year | 2005 |
| Abstract | Crosslinked polyethylene appears to be a better hip bearing material than conventional polyethylene, but will it take us past the expected 20-year survival and into the anticipated need for 30-year survivors? Knowing that a sizeable percentage of Co-Cr femoral heads roughen in the patient, and that XLPE is sensitive to roughening, there are many doubts over the long-term clinical use of Co-Cr heads with XLPE cups. Wear studies at LLUMC suggest there is a likely cost for using larger Co-Cr head sizes in young and active patients, i.e. those requiring a larger femoral head to increase stability and reduce dislocation. Therefore, we believe that these higher activity patients with extended expectations will better benefit from alternative bearing surfaces such as ceramic on ceramic. In addition, there are four modes of wear generation, i.e. impingement, backside wear etc., however, we still know very little about these processes for XLPE, especially understanding changes in wear particle sizes and concentrations. |
| Starting Page | 51 |
| Ending Page | 58 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/3-7985-1540-9_9 |
| Alternate Webpage(s) | https://page-one.live.cf.public.springer.com/pdf/preview/10.1007/3-7985-1540-9_9 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
