Feasibility analysis of bone density evaluation with Hounsfield unit value after fibula flap reconstruction of jaw defect

Maxillofacial Plastic and Reconstructive Surgery

Research

Mengkun Ding¹  Xiaofeng Shan¹  Zhigang Cai¹  Yihui Yang¹  Yifan Yang¹  Yifan Kang¹ 

[1] Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, No. 22 South Avenue, Zhongguancun, Haidian District, 100081, Beijing, People’s Republic of China;

关键词: Mandible reconstruction;    Bone density;    Vascularized fibula free flap;    Computed tomography;    Bone resorption;    Dental implantation;    Jaw reconstruction;    Dental rehabilitation;   

DOI  :  10.1186/s40902-023-00397-3

 received in 2023-07-11, accepted in 2023-08-21,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundImplant-supported dentures have become an essential means of restoring occlusal function after jaw reconstruction. Bone mineral density (BMD) may influence the success rate of implant denture restorations. This study aimed to explore whether the Hounsfield unit (HU) value can be used to monitor the changing trend of fibular BMD after jaw reconstruction.ResultsA total of 54 patients who underwent maxillar/mandibular reconstruction with a fibula flap were included in this study. There was a significant correlation between the HU value and BMD at 1 week, 3 months, and 6 months after surgery, and both were significantly correlated with follow-up time. The difference between each pair of absorption rates (DAR) was less than 10% in 66.7% and 75.9% of patients at 3 and 6 months; however, the DAR was more than 20% in 12% and 13.8% of patients at 3 and 6 months, respectively.ConclusionsThere is a significant correlation between HU value and BMD. The HU value can be used to roughly reflect the fibular BMD changing trend in a group of patients as opposed to an individual, and the HU value is not equivalent to BMD.Trial registrationChiCTR, ChiCTR2300069661, retrospectively registered on 22 March 2023. Retrospectively registered, https://www.chictr.org.cn/showproj.html?proj=188953.

【 授权许可】

CC BY   
© Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2023

【 图 表 】

Fig. 2

Fig. 3

Fig. 3

12888_2023_5012_Article_IEq3.gif