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Interview with Prof. Leunig

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Interview with Prof. Leunig, ENT specialist at Munich Center for Rhinology and ENT Clinic Dr. Gaertner in Munich, Germany. Recorded on January 14, 2021, by Jürgen Protsch, Clinical Application Manager at KARL STORZ, Tuttlingen.

Prof. Dr. med. Andreas Leunig, ENT Clinic Dr. Gaertner, Munich
J. Protsch: "Prof. Leunig, you have many years of experience with the use of our KARL STORZ NAV1 optical navigation system as well as with the electromagnetic navigation system. Would you describe your experience with the navigation systems in your daily surgical routine?"

Prof. A. Leunig: "Whenever possible, I perform sinus procedures using navigation. In other words, navigation has been an important part of the procedures I do for several years now."


J. Protsch: "What are the major advantages of using navigation in FESS?"

Prof. A. Leunig: "The navigation planning software allows us to define our surgical strategy more effectively – we call it the prediction – to improve safety and surgical results. With navigation, the procedure can be performed precisely and based on the patient's individual anatomy."


J. Protsch: "What are the comparative advantages of the optical and electromagnetic systems?"

Prof. A. Leunig: "Both systems offer great advantages for the procedure. The electromagnetic system has additional benefits with more complex procedures performed using a three-hand or four-hand technique."

"Whenever possible, I perform sinus procedures using navigation."

Prof. Dr. med. Andreas Leunig, ENT Clinic Dr. Gaertner, Munich

J. Protsch: "How would you rate the system’s accuracy?"

Prof. A. Leunig: "For symmetrical, bilateral laser registration of the surface, the literature shows an overall accuracy of 1.13 +/- 0.53 mm, ranging from 0.77 mm (frontal sinus) to 1.76 mm (petrous bone), which is clinically sufficient. Surface-touch registration is markedly slower than laser registration, but there are virtually no differences in accuracy."


J. Protsch: "What additional benefits does the NAV1® SinusTracker software provide surgeons in FESS procedures?"

Prof. A. Leunig: "A recently published, prospective, randomized, controlled clinical trial shows a very high acceptance rate for augmented reality (AR) enhanced navigation, or SinusTracker software, among sinus surgeons in different stages of surgical training."


J. Protsch: "What do you expect in terms of how navigation will develop in your specialty area in the future?"

Prof. A. Leunig: "In my opinion, using navigation systems should be encouraged not only in complex procedures performed by experienced surgeons, but also in routine procedures and in surgical training."

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