Minimum 20-year follow-up of a press-fit acetabular cup in cementless total hip replacement in young patients
Purpose: We aimed to determine the minimum 20-year survival rates of a cementless press-fit cup in young patients.Patients and methods: This is a retrospective, single-center, multi-surgeon cohort study investigating the minimum 20-year clinical and radiological outcome of the first 121 consecutive...
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| Hauptverfasser: | , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2023
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| In: |
Acta orthopaedica
Year: 2023, Jahrgang: 94, Pages: 321-327 |
| ISSN: | 1745-3682 |
| DOI: | 10.2340/17453674.2023.13385 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.2340/17453674.2023.13385 Verlag, kostenfrei, Volltext: https://actaorthop.org/actao/article/view/13385 
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| Verfasserangaben: | Andre Lunz, Moritz von Falkenhayn, Sebastian Jaeger, Tobias Reiner, Christian Merle, Marcus R. Streit, Tobias Renkawitz, and Moritz M. Innmann |
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| 245 | 1 | 0 | |a Minimum 20-year follow-up of a press-fit acetabular cup in cementless total hip replacement in young patients |c Andre Lunz, Moritz von Falkenhayn, Sebastian Jaeger, Tobias Reiner, Christian Merle, Marcus R. Streit, Tobias Renkawitz, and Moritz M. Innmann |
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| 520 | |a Purpose: We aimed to determine the minimum 20-year survival rates of a cementless press-fit cup in young patients.Patients and methods: This is a retrospective, single-center, multi-surgeon cohort study investigating the minimum 20-year clinical and radiological outcome of the first 121 consecutive total hip replacements (THRs) using a cementless, press-fit cup (Allofit, Zimmer, Warsaw, IN, USA) performed between 1999 and 2001. 28-mm metal-on-metal (MoM) and ceramic-on-conventionally not highly crosslinked polyethylene (CoP) bearings were used in 71% and 28%, respectively. Median patient age at surgery was 52 (range 21-60) years. Kaplan-Meier survival analysis was conducted for different endpoints.Results: The 22-year survival rate for the endpoint aseptic cup or inlay revision was 94% (95% confidence interval [CI] 87-96) and 99% (CI 94-100) for aseptic cup loosening. 20 patients (21 THRs; 17%) had died and 5 (5 THRs; 4%) were lost to follow-up. No THR showed evidence of radiographic cup loosening. Osteolysis was observed in 40% of THRs with MoM and 77% with CoP bearings. 88% of THRs with CoP bearings showed significant polyethylene wear.Conclusion: The investigated cementless press-fit cup, which is still in clinical use today, showed excellent long-term survival rates in patients under the age of 60 years at surgery. However, osteolysis due to polyethylene and metal wear was frequently observed and is a matter of concern in the third decade after surgery. | ||
| 650 | 4 | |a Allofit | |
| 650 | 4 | |a arthroplasty | |
| 650 | 4 | |a cementless fixation | |
| 650 | 4 | |a implant survival rates | |
| 650 | 4 | |a long-term outcome | |
| 650 | 4 | |a press-fit cup | |
| 650 | 4 | |a total hip replacement | |
| 650 | 4 | |a young patient cohort | |
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