The Experts below are selected from a list of 2109 Experts worldwide ranked by ideXlab platform
Hartmut Dickhaus - One of the best experts on this subject based on the ideXlab platform.
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computer assisted positioning of the proximal segment after sagittal split Osteotomy of the Mandible preclinical investigation of a novel electromagnetic navigation system
Journal of Cranio-maxillofacial Surgery, 2017Co-Authors: Igor Nova, Sebastian Kallus, Moritz Berger, Oliver Ristow, Urs Eisenmann, Christian Freudlsperger, Jurgen Hoffmann, Hartmut DickhausAbstract:Abstract Introduction Modifications of the temporomandibular joint position after Mandible Osteotomy are reluctantly accepted in orthognathic surgery. To tackle this problem, we developed a new navigation system using miniaturized electromagnetic sensors. Our imageless navigation approach is therefore optimized to avoid complications of previously proposed optical approaches such as the interference with established surgical procedures and the line of sight problem. Material and methods High oblique sagittal split osteotomies were performed on 6 plastic skull Mandibles in a laboratory under conditions comparable to the operating theatre. The subsequent condyle reposition was guided by an intuitive user interface and performed by electromagnetic navigation. To prove the suitability and accuracy of this novel approach for condyle navigation, the positions of 3 titanium marker screws placed on each of the proximal segments were compared using pre- and postoperative Cone Beam Computed Tomography (CBCT) imaging. Results Guided by the electromagnetic navigation system, positioning of the condyles was highly accurate in all dimensions. Translational discrepancies up to 0,65 mm and rotations up to 0,38° in mean could be measured postoperatively. There were no statistically significant differences between navigation results and CBCT measurements. Conclusion The intuitive user interface provides a simple way to precisely restore the initial position and orientation of the proximal mandibular segments. Our electromagnetic navigation system therefore yields a promising approach for orthognathic surgery applications.
Igor Nova - One of the best experts on this subject based on the ideXlab platform.
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computer assisted positioning of the proximal segment after sagittal split Osteotomy of the Mandible preclinical investigation of a novel electromagnetic navigation system
Journal of Cranio-maxillofacial Surgery, 2017Co-Authors: Igor Nova, Sebastian Kallus, Moritz Berger, Oliver Ristow, Urs Eisenmann, Christian Freudlsperger, Jurgen Hoffmann, Hartmut DickhausAbstract:Abstract Introduction Modifications of the temporomandibular joint position after Mandible Osteotomy are reluctantly accepted in orthognathic surgery. To tackle this problem, we developed a new navigation system using miniaturized electromagnetic sensors. Our imageless navigation approach is therefore optimized to avoid complications of previously proposed optical approaches such as the interference with established surgical procedures and the line of sight problem. Material and methods High oblique sagittal split osteotomies were performed on 6 plastic skull Mandibles in a laboratory under conditions comparable to the operating theatre. The subsequent condyle reposition was guided by an intuitive user interface and performed by electromagnetic navigation. To prove the suitability and accuracy of this novel approach for condyle navigation, the positions of 3 titanium marker screws placed on each of the proximal segments were compared using pre- and postoperative Cone Beam Computed Tomography (CBCT) imaging. Results Guided by the electromagnetic navigation system, positioning of the condyles was highly accurate in all dimensions. Translational discrepancies up to 0,65 mm and rotations up to 0,38° in mean could be measured postoperatively. There were no statistically significant differences between navigation results and CBCT measurements. Conclusion The intuitive user interface provides a simple way to precisely restore the initial position and orientation of the proximal mandibular segments. Our electromagnetic navigation system therefore yields a promising approach for orthognathic surgery applications.
Jurgen Hoffmann - One of the best experts on this subject based on the ideXlab platform.
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computer assisted positioning of the proximal segment after sagittal split Osteotomy of the Mandible preclinical investigation of a novel electromagnetic navigation system
Journal of Cranio-maxillofacial Surgery, 2017Co-Authors: Igor Nova, Sebastian Kallus, Moritz Berger, Oliver Ristow, Urs Eisenmann, Christian Freudlsperger, Jurgen Hoffmann, Hartmut DickhausAbstract:Abstract Introduction Modifications of the temporomandibular joint position after Mandible Osteotomy are reluctantly accepted in orthognathic surgery. To tackle this problem, we developed a new navigation system using miniaturized electromagnetic sensors. Our imageless navigation approach is therefore optimized to avoid complications of previously proposed optical approaches such as the interference with established surgical procedures and the line of sight problem. Material and methods High oblique sagittal split osteotomies were performed on 6 plastic skull Mandibles in a laboratory under conditions comparable to the operating theatre. The subsequent condyle reposition was guided by an intuitive user interface and performed by electromagnetic navigation. To prove the suitability and accuracy of this novel approach for condyle navigation, the positions of 3 titanium marker screws placed on each of the proximal segments were compared using pre- and postoperative Cone Beam Computed Tomography (CBCT) imaging. Results Guided by the electromagnetic navigation system, positioning of the condyles was highly accurate in all dimensions. Translational discrepancies up to 0,65 mm and rotations up to 0,38° in mean could be measured postoperatively. There were no statistically significant differences between navigation results and CBCT measurements. Conclusion The intuitive user interface provides a simple way to precisely restore the initial position and orientation of the proximal mandibular segments. Our electromagnetic navigation system therefore yields a promising approach for orthognathic surgery applications.
Christian Freudlsperger - One of the best experts on this subject based on the ideXlab platform.
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computer assisted positioning of the proximal segment after sagittal split Osteotomy of the Mandible preclinical investigation of a novel electromagnetic navigation system
Journal of Cranio-maxillofacial Surgery, 2017Co-Authors: Igor Nova, Sebastian Kallus, Moritz Berger, Oliver Ristow, Urs Eisenmann, Christian Freudlsperger, Jurgen Hoffmann, Hartmut DickhausAbstract:Abstract Introduction Modifications of the temporomandibular joint position after Mandible Osteotomy are reluctantly accepted in orthognathic surgery. To tackle this problem, we developed a new navigation system using miniaturized electromagnetic sensors. Our imageless navigation approach is therefore optimized to avoid complications of previously proposed optical approaches such as the interference with established surgical procedures and the line of sight problem. Material and methods High oblique sagittal split osteotomies were performed on 6 plastic skull Mandibles in a laboratory under conditions comparable to the operating theatre. The subsequent condyle reposition was guided by an intuitive user interface and performed by electromagnetic navigation. To prove the suitability and accuracy of this novel approach for condyle navigation, the positions of 3 titanium marker screws placed on each of the proximal segments were compared using pre- and postoperative Cone Beam Computed Tomography (CBCT) imaging. Results Guided by the electromagnetic navigation system, positioning of the condyles was highly accurate in all dimensions. Translational discrepancies up to 0,65 mm and rotations up to 0,38° in mean could be measured postoperatively. There were no statistically significant differences between navigation results and CBCT measurements. Conclusion The intuitive user interface provides a simple way to precisely restore the initial position and orientation of the proximal mandibular segments. Our electromagnetic navigation system therefore yields a promising approach for orthognathic surgery applications.
Urs Eisenmann - One of the best experts on this subject based on the ideXlab platform.
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computer assisted positioning of the proximal segment after sagittal split Osteotomy of the Mandible preclinical investigation of a novel electromagnetic navigation system
Journal of Cranio-maxillofacial Surgery, 2017Co-Authors: Igor Nova, Sebastian Kallus, Moritz Berger, Oliver Ristow, Urs Eisenmann, Christian Freudlsperger, Jurgen Hoffmann, Hartmut DickhausAbstract:Abstract Introduction Modifications of the temporomandibular joint position after Mandible Osteotomy are reluctantly accepted in orthognathic surgery. To tackle this problem, we developed a new navigation system using miniaturized electromagnetic sensors. Our imageless navigation approach is therefore optimized to avoid complications of previously proposed optical approaches such as the interference with established surgical procedures and the line of sight problem. Material and methods High oblique sagittal split osteotomies were performed on 6 plastic skull Mandibles in a laboratory under conditions comparable to the operating theatre. The subsequent condyle reposition was guided by an intuitive user interface and performed by electromagnetic navigation. To prove the suitability and accuracy of this novel approach for condyle navigation, the positions of 3 titanium marker screws placed on each of the proximal segments were compared using pre- and postoperative Cone Beam Computed Tomography (CBCT) imaging. Results Guided by the electromagnetic navigation system, positioning of the condyles was highly accurate in all dimensions. Translational discrepancies up to 0,65 mm and rotations up to 0,38° in mean could be measured postoperatively. There were no statistically significant differences between navigation results and CBCT measurements. Conclusion The intuitive user interface provides a simple way to precisely restore the initial position and orientation of the proximal mandibular segments. Our electromagnetic navigation system therefore yields a promising approach for orthognathic surgery applications.