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Bei mittelschweren segmentalen Defekten ist ein Pfannenrevisionseingriff besonders anspruchsvoll, wenn es um die Auswahl des Implantats und die Füllung des Defekts mit Augmentaten geht. Ziel ist die sichere Verankerung der Hüftpfannenaugmentatkomponente im Bereich des Knochendefekts, deren Form und Größe die Abmessungen der Revisionspfanne überschreiten können.
Oberfläche & Design
Structan®-Augmentate bestehen aus einer Titanlegierung und ermöglichen das Auffüllen des Defekts mit einer stabilen Gitterstruktur mit sehr rauer Oberfläche sowie funktionellen Anpassungselementen zur Implantation des Hüftpfannenimplantats. Die Structan® Augmentate werden durch ein Lasersinterverfahren hergestellt, was es ermöglicht, die porösen Implantatdesignstrukturen exakt zu formen.
Portfolio
Das Structan® Augmentate Sortiment ist in den Größen 48-68 mm in 4 mm Schritten erhältlich. Jede Größe ist in fünf verschiedenen Höhen verfügbar: 12-30 mm, in 4 mm Schritten.
Es stehen zwei verschiedene Fixationsschrauben in den Längen 16-68 mm in 4 mm Schritten zur Verfügung:
Die Augmente entsprechen dem Durchmesser der Revisionspfanne. Der Durchmesser der Revisionspfanne sollte im Bereich von +/- 4 mm der Größe der gewählten Structan®-Augmentation liegen.
Kompatible Pfannenkomponenten
Kraniale (eingeschlossene oder nicht eingeschlossene) Defekte sind für die kombinierte Implantation einer unzementierten Press-Fit-Pfanne und eines Augmentats geeignet. Plasmafit® Plus 3 & Plus 7 und die Plasmafit® Revisionspfannen sind zementfreie Pressfit-Pfannen zur Kombination mit Structan® Augmenten.
Kraniale (eingeschlossene) Defektsituationen sind für die kombinierte Implantation einer zementierten Polyethylenpfanne und eines Augmentats geeignet. Die zementierten Flachprofilpfannen sind in Vitelene® und UHMWPE erhältlich.