Artikel
10-year follow-up of the cemented Polar Stem
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Autoren
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Antonio Klasan
- Zentrum für Orthopädie und Unfallchirurgie, Uniklinik Marburg, Marburg, Germany
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Philipp Dworschak
- Universitätsklinikum Gießen und Marburg Standort Marburg, Zentrum für Orthopädie und Unfallchirurgie, Marburg, Germany
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Bilal Farouk El-Zayat
- Philipps Universität Marburg, Universitätsklinikum Marburg, Zentrum für Orthopädie und Unfallchirurgie, Marburg, Germany
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Steffen Ruchholtz
- Universitätsklinikum Gießen und Marburg, Standort Marburg, Zentrum für Orthopädie und Unfallchirurgie, Marburg, Germany
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Karl-Friedrich Schüttler
- Uniklinikum Marburg, Zentrum für Orthopädie und Unfallchirurgie, UKGM, Marburg, Germany
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Ahmet Sen
- Diakonie Klinikum Jung-Stilling, Siegen, Germany
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Jens Figiel
- Universitätsklinik Marburg, Klinik f. Diagnostische und Interventionelle Radiologie, Marburg, Germany
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Thomas J. Heyse
- Universitätsklinikum Gießen und Marburg Standort Marburg, Klinik für Orthopädie und Rheumatologie, Marburg, Germany
| Veröffentlicht: | 6. November 2018 |
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Gliederung
Text
Objectives: The Polar Stem is the improved version of a stem already on the market. It has been implantet in both cementless and cemented versions for 15 years. Our clinic has been implanting it for 10 years. This is a first world-wide long-term follow-up of the cemented Polar stem.
Methods: A total of 113 hips replacements were performed in 106 patients between 10/2007 and 12/2009. The mean age of the patients at operation was 74.8 years, range 50-91 years. A mean 8.9 year follow-up has been achieved at in 98% of the cohort. Radiographic data and Harris Hip Score have been obtained during the survey.
Results and conclusion: Stem survival for any reason was 96.4% after 9 years, survival for aseptic loosening was 100%. Radiolucent lines up to 2 mm were observed in 75% patients, but osteolysis was not observed. Clinical outcomes were in line with previous investigations, and the rate of adverse events was very low. Cemented Polar stem is a modern stem with an excellent survival rate, very low rate of aseptic loosening giving the patient comparable or better quality of life.
