Journal
JOURNAL OF CLINICAL MEDICINE
Volume 11, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/jcm11072060
Keywords
mandibular reconstruction; fibula flap; virtual surgical planning; surgical navigation; computer-assisted surgery; oral cancer
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The study presents an innovative protocol for virtual planning and surgical navigation in post-oncological mandibular reconstruction, showing satisfactory accuracy level. However, its complexity and long learning curve limit its routine application.
Aim: the purpose of this work is to present an innovative protocol for virtual planning and surgical navigation in post-oncological mandibular reconstruction through fibula free flap. In order to analyze its applicability, an evaluation of accuracy for the surgical protocol has been performed. Methods: 21 patients surgically treated for mandibular neoplasm have been included in the analysis. The Brainlab Vector Vision 3.0(R) software for surgical navigation has been used for preoperative surgical planning and intra-operative navigation. A post-operative accuracy evaluation has been performed matching the position of mandibular landmarks between pre-operative and post-operative CT scans. Results: the maximal discrepancy observed was included between -3.4 mm and +3.2 mm, assuming negative values for under correction and positive values for overcorrection. An average grade of accuracy included between 0.06 +/- 0.58 mm and 0.43 +/- 0.68 mm has been observed for every mandibular landmark examined, except for mandibular angles that showed a mean discrepancy value included between 1.36 +/- 1.73 mm and 1.46 +/- 1.02 mm when compared to preoperative measurements. Conclusion: a satisfying level of accuracy has been observed in the protocol presented, which appears to be more versatile if compared to closed custom-made systems. The technique described may represent a valid option for selected patients, but it cannot be considered for routine activity because of the complexity of the method, the mobility of the jaw, the necessity of surgical navigator and the long surgical learning curve that is required.
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