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Erschienen in: Die Orthopädie 4/2024

05.03.2024 | Leitthema

Erfolgsfaktoren für den medialen Teilgelenkersatz – Was sind die wichtigsten chirurgischen Tricks?

verfasst von: PD Dr. Wenzel Waldstein, Prof. Dr. Peter R. Aldinger, Prof. Dr. Christian Merle

Erschienen in: Die Orthopädie | Ausgabe 4/2024

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Zusammenfassung

Hintergrund

Der unikondyläre Gelenkersatz (UKA) ist ein etabliertes Verfahren zur Therapie der anteromedialen Gonarthrose mit sehr guten funktionellen Ergebnissen und Prothesenstandzeiten. Eine differenzierte Indikationsstellung und Patientenselektion sind für den Erfolg des Teilgelenkersatzes essenziell. Hierbei haben routinemäßige Varus‑/Valgusstressaufnahmen einen hohen Stellenwert.

Therapie

Der unikondyläre Gelenkersatz ist eine wenig invasive und bandspannungsbasierte Operation mit dem Ziel, die patientenindividuelle präarthrotische Gelenklinie und Beinachse durch ein physiologisches Wiederanspannen des Innenbandes und der Kreuzbänder zu rekonstruieren.

Ergebnisse

Aktuelle Daten für mediale UKA zeigen sowohl für mobile als auch „fixed bearing“ Implantate bei korrekter Indikation und Operationstechnik sehr gute Ergebnisse. Die zementfreie Verankerung bietet potenzielle Vorteile gegenüber der zementierten Versorgung. Registerdaten zeigen eindeutig, dass auf den Teilgelenkersatz spezialisierte Kliniken bzw. Operateure (Fallzahl > 30/Jahr pro Operateur, > 100/Jahr pro Klinik) mit einem hohen Anteil an UKA bezogen auf die Gesamtanzahl von Knieprothesen (> 20 %) signifikant geringere Revisionsraten aufweisen.
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Metadaten
Titel
Erfolgsfaktoren für den medialen Teilgelenkersatz – Was sind die wichtigsten chirurgischen Tricks?
verfasst von
PD Dr. Wenzel Waldstein
Prof. Dr. Peter R. Aldinger
Prof. Dr. Christian Merle
Publikationsdatum
05.03.2024
Verlag
Springer Medizin
Erschienen in
Die Orthopädie / Ausgabe 4/2024
Print ISSN: 2731-7145
Elektronische ISSN: 2731-7153
DOI
https://doi.org/10.1007/s00132-024-04479-6

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