Zusammenfassung
Einführung: Der Goldstandard einer operativ behandelten Azetabulumfraktur ist die offene Reposition
und interne Osteosynthese. In dieser Studie berichten wir über die ersten Ergebnisse
einer perkutanen Schraubenosteosynthese von 14 Azetabulumfrakturen unter Anwendung
einer 2D‐fluoroskopisch basierten Navigation zur Reduktion der Strahlenbelastung,
der Implantatfehllage und der zugangsbedingten Komplikationen. Ergebnisse: Alle 36 Azetabulumschrauben konnten ohne perioperative Komplikationen bei einer mittleren
OP-Zeit/Schraube von 54 min und einer mittleren Durchleuchtungszeit von 87 s/Schraube
in regelrechter Lage implantiert werden. In den Nachuntersuchungen (71 % der Patienten,
durchschnittlich 13,1 ± 1,8 Monate postoperativ) zeigte sich kein sekundäres Implantatversagen
oder posttraumatische Arthroseentwicklung, bei einem frühen Wundinfekt 4 Wochen postoperativ.
Schlussfolgerung: Unsere ersten Erfahrungen mit diesem neuen Verfahren sind vielversprechend und Vorteile
einer 2D‐fluoroskopisch navigierten perkutanen Schraubenosteosynthese sind bei ausgewählten
Azetabulumfrakturen zu erwarten.
Abstract
Introduction: The current gold standard for operatively treated acetabular fractures is open reduction
and internal fixation. In this study we report the early results of percutaneous screw
osteosynthesis of acetabular fractures in 14 cases, using a computer navigation system
to reduce screw misplacement, approach associated risks and radiation exposure. Results: All 36 acetabular screws were placed correctly without any perioperative complication.
The mean operation time per screw was 54 min, the mean fluoroscopic time per screw
was 87 s. In the follow-up examinations (current rate: 71 %, mean follow-up: 13.1
± 1.8 months) no fixation failure or development of post-traumatic osteoarthritis
was seen. One wound infection occured. Conclusion: Our first experience with this novel approach is promising and serious advances of
fluoroscopic navigated percutaneous screw osteosynthesis of well selected acetabular
fractures can be expected.
Schlüsselwörter
computerassistierte Chirurgie - 2D‐fluoroskopische Navigation - Azetabulumfraktur
- Schraubenosteosynthese - minimalinvasiv
Key words
computer‐assisted surgery - 2D‐fluoroscopic navigation - acetabular fracture - screw
osteosynthesis - minimally invasive
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1 Beide Autoren haben zu gleichen Teilen beigetragen.
Dr. Florian Gras
Klinik für Unfall-, Hand- und Wiederherstellungschirurgie Klinikum der Friedrich-Schiller-Universität Jena
Erlanger Allee 101
07740 Jena
Fax: 0 36 41/9 32 28 02
Email: marc.gras@med.uni-jena.de