Henneveld, M. (Marit) (2013) Survival en polyethyleenslijtage in een moderne, modulaire, ongecementeerde acetabulumcomponent van een totale heupprothese. thesis, Medicine.
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Abstract
Background and Purpose: Polyethylene wear and its direct consequences are the major causes of long-term implant failure in total hip arthroplasty. There have been few reports on the long-term results of modern modular uncemented acetabular components. This study evaluates these results of a specific modular component, with a follow-up period of 9,6 (5-16) years. Methods: In a group of 204 patients with a modular uncemented cup (Reflection, Smith&Nephew), survivorship and polyethylene wear were evaluated. A possible correlation between the inclination- and anteversion angle and wear was explored. All measurements were performed with Imatri, an online instrument to measure wear. Statistics were performed with SPSS, version 20.1. Results: A total of 22 cups were revised: 4 because of deep infections, 10 because of recurrent dislocations, 3 because of aseptic loosening, another 3 because of excessive polyethylene wear and 2 because of near dislocations. Survival of the cup was 94,8% after 5 years, 91,5% after 10 years and 81,6% after 15 years. Mean wear rate was 0,17 millimeter per year. There was no correlation found between inclination- or anteversion angle and wear. Conclusion: This report shows acceptable results in terms of survival and wear in this modular uncemented acetabularcomponent. These results are favourable after a follow-up of 5-16 years. Close surveillance of patients is recommended, as wear remains a major issue in total hip arthroplasty and often results in a revision.
| Item Type: | Thesis (Thesis) |
|---|---|
| Supervisor name: | Verheyen, dr. C.C.P.M. |
| Supervisor name: | Ettema, dr. H.B. and Isala klinieken, Zwolle |
| Faculty: | Medical Sciences |
| Date Deposited: | 25 Jun 2020 10:52 |
| Last Modified: | 25 Jun 2020 10:52 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/1267 |
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