Cortical bone resorption of fibular bone after maxillary reconstruction with a vascularized fibula free flap: a computed tomography imaging study. Issue 8 (August 2019)

• Record Type: Journal Article
• Authors: Kang, Y.-F.; Liang, J.; He, Z.; Xie, S.; Zhang, L.; Shan, X.-F.; Cai, Z.-G.
• Is Part Of: International journal of oral & maxillofacial surgery. Volume 48:Issue 8(2019:Aug.)
• Page Start: 1009
• Page End: 1014
• Publication Date: 2019-08
• Subjects: maxillary reconstruction -- vascularized fibula free flap -- cortical bone -- bone thickness -- bone resorption; Mouth -- Surgery -- Periodicals; Maxilla -- Surgery -- Periodicals; Dentistry -- Periodicals; Dentistry, Operative; Oral Surgical Procedures; Surgery, Oral; Dentistry; Maxilla -- Surgery; Mouth -- Surgery; Electronic journals; Periodicals; 617.52059
• DOI: 10.1016/j.ijom.2019.03.008
• Languages: English
• ISSNs: 0901-5027

Abstract

Abstract: This study was performed to evaluate the cortical bone resorption of fibular bone after maxillary reconstruction with a fibula free flap. A total of 35 patients with maxillary defects that were repaired using a fibula flap (62 fibula segments) between January 2011 and January 2016 were enrolled. Computed tomography (CT) images taken 1 week and 1 year postoperative were used to evaluate cortical bone resorption. The 62 fibula segments were measured on four different surfaces in the CT images. At 1 week, the thickness of the cortical bone was 2.57 ± 0.58 mm, 2.72 ± 0.46 mm, 3.84 ± 0.98 mm, and 4.36 ± 0.90 mm for the exterior, interior, superior, and inferior sides, respectively. At approximately 1 year, the cortical bone thickness was significantly reduced to 2.00 ± 0.65 mm ( P < 0.01), 2.25 ± 0.60 mm ( P < 0.01), 3.37 ± 0.90 mm ( P < 0.01), and 2.96 ± 0.84 mm ( P < 0.01) for the exterior, interior, superior, and inferior sides, respectively. The cortical bone thickness of fibular bone is significantly reduced 1 year after the restoration of maxillary defects with a fibula free flap, most significantly on the inferior side.