naa a22 4500 510807186 CHVBK 20180411083423.0 cr unu---uuuuu 180411e20131101xx s 000 0 eng 10.1007/s11548-013-0827-5 doi (NATIONALLICENCE)springer-10.1007/s11548-013-0827-5 A haptics-assisted cranio-maxillofacial surgery planning system for restoring skeletal anatomy in complex trauma cases [Elektronische Daten] [Pontus Olsson, Fredrik Nysjö, Jan-Michaél Hirsch, Ingrid Carlbom] Purpose: Cranio-maxillofacial (CMF) surgery to restore normal skeletal anatomy in patients with serious trauma to the face can be both complex and time-consuming. But it is generally accepted that careful pre-operative planning leads to a better outcome with a higher degree of function and reduced morbidity in addition to reduced time in the operating room. However, today's surgery planning systems are primitive, relying mostly on the user's ability to plan complex tasks with a two-dimensional graphical interface. Methods: A system for planning the restoration of skeletal anatomy in facial trauma patients using a virtual model derived from patient-specific CT data. The system combines stereo visualization with six degrees-of-freedom, high-fidelity haptic feedback that enables analysis, planning, and preoperative testing of alternative solutions for restoring bone fragments to their proper positions. The stereo display provides accurate visual spatial perception, and the haptics system provides intuitive haptic feedback when bone fragments are in contact as well as six degrees-of-freedom attraction forces for precise bone fragment alignment. Results: A senior surgeon without prior experience of the system received 45min of system training. Following the training session, he completed a virtual reconstruction in 22min of a complex mandibular fracture with an adequately reduced result. Conclusion: Preliminary testing with one surgeon indicates that our surgery planning system, which combines stereo visualization with sophisticated haptics, has the potential to become a powerful tool for CMF surgery planning. With little training, it allows a surgeon to complete a complex plan in a short amount of time. The Author(s), 2013 Cranio-maxillofacial surgery planning nationallicence Haptics nationallicence Stereo visualization nationallicence Collision detection nationallicence Snap-to-fit nationallicence Olsson Pontus Centre for Image Analysis, Uppsala University, Uppsala, Sweden aut Nysjö Fredrik Centre for Image Analysis, Uppsala University, Uppsala, Sweden aut Hirsch Jan-Michaél Department of Surgical Sciences, Oral and Maxillofacial Surgery, Uppsala University, Uppsala, Sweden aut Carlbom Ingrid Centre for Image Analysis, Uppsala University, Uppsala, Sweden aut International Journal of Computer Assisted Radiology and Surgery Springer Berlin Heidelberg 8/6(2013-11-01), 887-894 1861-6410 8:6<887 2013 8 11548 https://doi.org/10.1007/s11548-013-0827-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11548-013-0827-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Olsson Pontus Centre for Image Analysis, Uppsala University, Uppsala, Sweden aut NATIONALLICENCE 700 1- Nysjö Fredrik Centre for Image Analysis, Uppsala University, Uppsala, Sweden aut NATIONALLICENCE 700 1- Hirsch Jan-Michaél Department of Surgical Sciences, Oral and Maxillofacial Surgery, Uppsala University, Uppsala, Sweden aut NATIONALLICENCE 700 1- Carlbom Ingrid Centre for Image Analysis, Uppsala University, Uppsala, Sweden aut NATIONALLICENCE 773 0- International Journal of Computer Assisted Radiology and Surgery Springer Berlin Heidelberg 8/6(2013-11-01), 887-894 1861-6410 8:6<887 2013 8 11548 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer