Zusammenfassung
Standardverfahren
In der Regel erfolgt bei spinalen Eingriffen eine postoperative Bildgebung, um die exakte Lage des Implantatmaterials zu dokumentieren.
Informationen
Unbedingt notwendig ist die Bildgebung, wenn postoperativ neue klinische Symptome aufgetreten sind. Hier müssen eine Nachblutung bzw. inkorrekte, eine Wurzel oder das Myelon tangierende Implantatlage nachgewiesen werden. Neben diesen direkt postoperativ auftretenden klinischen Symptomen gibt es eine Reihe von Komplikationen, die erst nach mehreren Tagen, Wochen oder sogar nach Monaten auftreten können. Hierzu zählen das Failed-back-surgery-Syndrom, die Implantatlockerung oder -bruch, aber auch ein Rezidivvorfall und die Spondylodiszitis.
Bewertung
Neben der Kenntnis der ursprünglichen Symptome ist es auch wichtig, die Operationsdetails zu kennen, wie z. B. Zugangswege und verwendetes Material.
Empfehlung
In fast allen postoperativen Fällen ist eine Bildgebung mit Kontrastmittel(KM)-Gabe und entsprechender Korrektur der Artefakte durch das Implantatmaterial wie Dual-energy-Technik, Korrekturalgorithmen bzw die Verwendung besonderer MR-Sequenzen notwendig.
Empfehlung
Um die portoperative Bildgebung korrekt beurteilen zu können, sind neben besonderen CT-Techniken bzw. MR-Sequenzen Kenntnisse des Operationsverfahrens und der vorangehenden klinischen Symptome notwendig.
Abstract
Standard procedure
As a rule, postoperative imaging is carried out after spinal interventions to document the exact position of the implant material.
Information
Imaging is absolutely necessary when new clinical symptoms occur postoperatively. In this case a rebleeding or an incorrect implant position abutting a root or the spinal cord must be proven. In addition to these immediately occurring postoperative clinical symptoms, there are a number of complications that can occur several days, weeks or even months later. These include the failed back surgery syndrome, implant loosening or breakage of the material and relapse of a disc herniation and spondylodiscitis.
Review
In addition to knowledge of the original clinical symptoms, it is also important to know the operation details, such as the access route and the material used.
Recommendation
In almost all postoperative cases, imaging with contrast medium administration and corresponding correction of artefacts by the implant material, such as the dual energy technique, correction algorithms and the use of special magnetic resonance (MR) sequences are necessary.
Recommendation
In order to correctly assess the postoperative imaging, knowledge of the surgical procedure and the previous clinical symptoms are mandatory besides special computed tomography (CT) techniques and MR sequences.
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W. Käfer, I. Heumüller, N. Harsch, C. Kraus und W. Reith geben an, dass kein Interessenkonflikt besteht.
Dieser Beitrag beinhaltet keine von den Autoren durchgeführten Studien an Menschen oder Tieren.
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Käfer, W., Heumüller, I., Harsch, N. et al. Postoperative Wirbelsäule. Radiologe 56, 698–707 (2016). https://doi.org/10.1007/s00117-016-0130-x
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DOI: https://doi.org/10.1007/s00117-016-0130-x
Schlüsselwörter
- Postoperative Bildgebung
- Failed-back-surgery-Syndrom
- Implantatfehllage
- Spondylodiszitis
- Dual-energy-Technik