Zusammenfassung
Das SIREMOBIL Iso-C3D (Siemens AG, Medical Solutions, Erlangen) erlaubt die intraoperative dreidimensionale Erfassung knöcherner Strukturen. Es wird ein hochauflösender 3D-Datenkubus mit einer Kantenlänge von 12 cm erzeugt. Die Daten können in ein Navigationssystem importiert werden, ohne die Notwendigkeit einer Registrierung des Datensatzes durch den Chirurgen. In der vorliegenden prospektiven Studie wird die Genauigkeit der Iso-C3D-Navigation bei der Platzierung von thorakalen und lumbalen Pedikelschrauben untersucht. Bei 61 Patienten mit 73 Frakturen wurden insgesamt 302 Pedikelschrauben platziert. Bei 5 Schrauben wurde in einem postoperativen Kontroll-CT eine inkorrekte Schraubenlage (≥2 mm) nachgewiesen. Dies entspricht einer Fehlplatzierungsrate von 1,7%. Durchleuchtungszeit bei der Iso-C3D-Navigation lag bei 1,28 (±0,56) min bei einer Gesamtoperationsdauer von 103,26 (±23,3) min. Neurologische Komplikationen wurden postoperativ nicht beobachtet. Die Iso-C3D-Navigation stellt ein sehr präzises Verfahren zur Platzierung von Pedikelschrauben dar.
Abstract
The mobile SIREMOBIL Iso-C3D C-arm (Siemens, Erlangen, Germany) is the first device permitting intraoperative, three-dimensional representation of bone structures. A high-resolution, isotropic 3D data cube in the isocenter with sides of approximately 12 cm is calculated simultaneously. The SIREMOBIL Iso-C3D is linked to the navigation system. This makes it possible to transfer the generated 3D data directly to the linked navigation system without the need for surgeon-dependent registration. In this prospective clinical trial, we evaluated the accuracy of pedicle screw placement using this device. In 61 patients, a total of 302 pedicle screws were placed. Only in five cases (1.7%) were misplacements of ≥2 mm shown in postoperative control CT. The average fluoroscopy time was 1.28±0.56 min, and the average operative duration was 103.26±23.3 min. There were no postoperative neurological complications in any of the 30 patients. From these data, we conclude that Iso-C3D navigation is a very accurate method for the placement of pedicle screws.
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Grützner, P.A., Beutler, T., Wendl, K. et al. Navigation an der Brust- und Lendenwirbelsäule mit dem 3D-Bildwandler. Chirurg 75, 967–975 (2004). https://doi.org/10.1007/s00104-004-0944-3
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DOI: https://doi.org/10.1007/s00104-004-0944-3
Schlüsselwörter
- Computerassistierte Chirurgie
- Intraoperative Bildgebung
- SIREMOBIL® Iso-C3D-C-Bogen
- Navigation
- Pedikelschraube