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Published on: January 28, 2020
Maxillectomy defects: Virtually comparing fibular and scapular free flap reconstructions
Sally Nguyen1, Khanh Linh Tran1, Edward Wang1
1Division of Otolaryngology-Head & Neck Surgery, Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada.
Background:
This study virtually compares patient-specific fibular and scapular reconstructions for maxillectomies.
Methods:
Nine maxillectomy defects were created on 10 maxillas and virtually reconstructed with patient-specific fibulas and scapulas. Reconstructions were compared for restoring midface cephalometrics, dental implantability, and pedicle length.
Results:
Of 90 maxillectomy defects, the vertically oriented scapula provided improved orbital floor and maxillary height reconstructions (p < 0.001), albeit at the cost of dental implantability compared to the fibula (p < 0.001). In two defects crossing the midline, the fibula, allowing for more osteotomies, provided improved maxillary projection. In the remaining three defects crossing the midline, the horizontally oriented scapula was comparable to the fibula. Fibular and scapular reconstructions were amenable for dental implantation and had similar pedicle lengths, although favoring scapula in extensive defects.
Conclusion:
Fibular and scapular reconstructions of maxillectomy defects provide unique strengths. This virtual analysis can guide a goal-oriented reconstruction based on defect type and patient-specific goals.
