BACKGROUND: The reconstruction of zygoma is a challenge with regard to aesthetic and reconstructive demands. METHODS: Pre-operative CT data were imported into specific surgical planning software. The mirror-imaging technique was used. A surgical guide transferred the virtual surgery plan to the operation site, whereby it fitted uniquely to the iliac donor site. A postoperative CT scan was obtained for comparing the actual postoperative graft position and shape with the pre-operative virtual simulation. RESULTS: A mean difference of 0.71 mm (SD ± 1.42) for the shape analysis and 3.53 mm (SD ± 3.14) for the graft position was determined. The calculation of the closest point distance showed a surface deviation of < 2 mm for the shape analysis with 83.6% of values and for the graft position with 35.7% of values. CONCLUSION: Virtual surgical planning is a suitable method for zygoma reconstruction with vascularized iliac crest bone graft, with good accuracy for restoring the three-dimensional anatomy.
BACKGROUND: The reconstruction of zygoma is a challenge with regard to aesthetic and reconstructive demands. METHODS: Pre-operative CT data were imported into specific surgical planning software. The mirror-imaging technique was used. A surgical guide transferred the virtual surgery plan to the operation site, whereby it fitted uniquely to the iliac donor site. A postoperative CT scan was obtained for comparing the actual postoperative graft position and shape with the pre-operative virtual simulation. RESULTS: A mean difference of 0.71 mm (SD ± 1.42) for the shape analysis and 3.53 mm (SD ± 3.14) for the graft position was determined. The calculation of the closest point distance showed a surface deviation of < 2 mm for the shape analysis with 83.6% of values and for the graft position with 35.7% of values. CONCLUSION: Virtual surgical planning is a suitable method for zygoma reconstruction with vascularized iliac crest bone graft, with good accuracy for restoring the three-dimensional anatomy.
Authors: Stefan Raith; Sebastian Wolff; Timm Steiner; Ali Modabber; Michael Weber; Frank Hölzle; Horst Fischer Journal: Int J Comput Assist Radiol Surg Date: 2016-07-08 Impact factor: 2.924
Authors: Ali Modabber; Nassim Ayoub; Stephan Christian Möhlhenrich; Evgeny Goloborodko; Tolga Taha Sönmez; Mehrangiz Ghassemi; Christina Loberg; Bernd Lethaus; Alireza Ghassemi; Frank Hölzle Journal: Med Devices (Auckl) Date: 2014-06-16
Authors: Johannes Kummert; Alexander Schulz; Tim Redick; Nassim Ayoub; Ali Modabber; Dirk Abel; Barbara Hammer Journal: Sensors (Basel) Date: 2021-03-17 Impact factor: 3.576