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https://hdl.handle.net/2440/126185
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dc.contributor.author | Critchley, O. | - |
dc.contributor.author | Callary, S. | - |
dc.contributor.author | Mercer, G. | - |
dc.contributor.author | Campbell, D. | - |
dc.contributor.author | Wilson, C. | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Archives of Orthopaedic and Trauma Surgery, 2020; 140(1):121-127 | - |
dc.identifier.issn | 0936-8051 | - |
dc.identifier.issn | 1434-3916 | - |
dc.identifier.uri | http://hdl.handle.net/2440/126185 | - |
dc.description | Published online: 26 October 2019 | - |
dc.description.abstract | BACKGROUND:The magnitude and pattern of acceptable long-term migration of cementless femoral stems are not well understood. The Corail hydroxyapatite-coated cementless stem is a clinically successful and commonly used femoral stem with a long-term migration pattern not previously described in the literature. The aim of this study was to assess the long-term migration of the Corail hydroxyapatite-coated cementless stem using radiostereometric analysis (RSA) at 14-year follow-up, thereby establishing a benchmark acceptable long-term migration pattern for hydroxyapatite-coated cementless prostheses. MATERIALS AND METHODS:A prospective cohort of 29 patients (30 hips) undergoing primary total hip arthroplasty for primary hip osteoarthritis were enrolled into a study to characterise the migration of the Corail cementless stem. A total of 13 patients (4 males, 9 females) with mean age 82 (range 68-92) underwent repeat RSA radiographs at minimum 10 years post-operation (mean 13.9 years, range 13.3-14.4). Subsidence of the stem was measured and compared to prior measurements taken at 6 months and 1, 2, and 6 years. RESULTS:None of the 13 patients have been revised. The migration at 6 months, 1 year, 2 years, and 6 years has been previously recorded. At mean 14-year follow-up, the cohort mean subsidence of the cementless stem was 0.70 mm (range - 0.06 to 3.61 mm). For each stem followed up at 6 months and 14 years, the mean subsidence over this period was 0.05 mm (range - 0.14 to 0.57 mm). There is no significant difference in mean subsidence at 6 months and 14 years (p = 0.43). CONCLUSIONS:The long-term pattern of the subsidence of the Corail femoral stem has not previously been described. Subsidence occurs within the first 6 months, after which there is persistent stabilisation of the implant to 14 years. This study provides a description of a long-term acceptable migration pattern to which new hydroxyapatite-coated cementless prostheses may be compared. LEVEL OF EVIDENCE II. | - |
dc.description.statementofresponsibility | Owain Critchley, Stuart Callary, Graham Mercer, David Campbell, Christopher Wilson | - |
dc.language.iso | en | - |
dc.publisher | Springer-Verlag | - |
dc.rights | © Springer-Verlag GmbH Germany, part of Springer Nature 2019 | - |
dc.source.uri | http://dx.doi.org/10.1007/s00402-019-03291-8 | - |
dc.subject | Total hip arthroplasty | - |
dc.subject | Radiostereometric analysis | - |
dc.subject | Subsidence | - |
dc.subject | Stabilisation | - |
dc.title | Long-term migration characteristics of the Corail hydroxyapatite-coated femoral stem: a 14-year radiostereometric analysis follow-up study | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1007/s00402-019-03291-8 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Callary, S. [0000-0002-2892-5238] | - |
dc.identifier.orcid | Campbell, D. [0000-0002-1572-9529] | - |
Appears in Collections: | Aurora harvest 8 Orthopaedics and Trauma publications |
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