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DOI: 10.1055/s-0029-1185434
© Georg Thieme Verlag KG Stuttgart · New York
Langzeitergebnisse der zementfreien Hofer-Imhof-Titan-Schraubpfanne
Long-Term Results of the Cementless Hofer-Imhof Threaded Titanium CupPublikationsverlauf
Publikationsdatum:
08. April 2009 (online)
![](https://www.thieme-connect.de/media/zfo/200902/lookinside/thumbnails/10.1055-s-0029-1185434-1.jpg)
Zusammenfassung
Ziel: Die monozentrische, retrospektive Studie untersucht das Langzeit-Überleben der zementfreien, parabolischen Hofer/Imhof-Schraubpfanne. Material und Methode: 678 Reintitanpfannen wurden 641 Patienten von November 1991 bis Mai 1995 implantiert. Das Durchschnittsalter betrug 67 Jahre, 65 % waren weiblichen, 35 % männlichen Geschlechts. 165 Patienten (168 Hüften) konnten von Dezember 2005 bis Oktober 2006 klinisch und radiologisch vollständig nachuntersucht werden („complete follow-up“), die Daten der restlichen Patienten wurden anhand der letzten Kartei-Einträge evaluiert und Kaplan-Meier-Überlebenskurven erstellt. Ergebnisse: Für das Gesamtkollektiv betrug die mittlere Überlebenszeit der Pfanne 14,2 Jahre, die Überlebenswahrscheinlichkeit lag nach 14,5 Jahren bei 93 % (± 3,7 %). Für das Kollektiv mit „complete follow-up“ betrug die mittlere Überlebenszeit der Pfanne 14,0 Jahre, die Überlebenswahrscheinlichkeit lag nach 14,5 Jahren bei 93 % (± 5,2 %). Schlussfolgerung: Unsere Ergebnisse decken sich vorteilhaft mit denen konischer Schraubpfannen (Zweymüller) und empfehlen die HI-Pfanne als Primärimplantat.
Abstract
Aim: This retrospective monocentre study investigates long-term results of the cementless parabolic-shaped HI threaded cup. Material and Methods: 678 threaded cups made of titanium were implanted into 641 patients from November 1991 to May 1995. Mean age was 67 years, 65 % female, 35 % male. From December 2005 until October 2006, 165 patients (168 hips) underwent complete clinical and radiological follow-up, data of the remaining group were taken from the files. Using the Kaplan-Meier method, survival rates of the threaded cup were calculated. Results: For all patients the average survival time of the cup was 14.2 years, the corresponding survival probability was 93 % (± 3.7 %) after 14.5 years. For the patients with complete follow-up, average survival time of the cup was 14.0 years, the corresponding survival probability was 93 % (± 5.2 %) after 14.5 years. Conclusion: Our results are comparable to those of threaded cups with a conical design (Zweymüller), the HI threaded cup can thus be recommended for primary implantation.
Schlüsselwörter
HTEP‐Hüfttotalendoprothese - zementfrei - Schraubpfanne - Langzeitergebnis
Key words
THA - long‐term results - parabolic shape - threaded cup
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Dr. Gerald Metzner
Paracelsus Medizinische Privatuniversität Salzburg
Universitätsklinik für Orthopädie
Müllner Hauptstrasse 48
5020 Salzburg
Österreich
Telefon: + 43/6 62/44 82 29 01
Fax: + 43/6 62/44 82 29 03
eMail: g.metzner@salk.at