New method to evaluate sequelae of static facial asymmetry in patients with facial palsy using three-dimensional scanning analysis

• Material Type: 博士論文
• Title: New method to evaluate sequelae of static facial asymmetry in patients with facial palsy using three-dimensional scanning analysis
• Author/Editor: Azuma, Takahiro; Fuchigami, Teruhiko; Nakamura, Katsuhiko; Kondo, Eiji; Satou, Go; Kitamura, Yoshiaki; Takeda, Noriaki
• Author Heading: Azuma, Takahiro; Fuchigami, Teruhiko; Nakamura, Katsuhiko; Kondo, Eiji; Satou, Go; Kitamura, Yoshiaki; Takeda, Noriaki
• Publication, Distribution, etc.: Japanese Society of Otorhinolaryngology Head and Neck Surgery|Elsevier
• Publication Date: 2022-01-31
• Publication Date (W3CDTF): 2022-01-31
• Alternative Title: 顔面神経麻痺患者の静的顔面非対称の後遺症に対する3次元スキャン解析を用いた新規評価法
• Periodical title: Auris Nasus Larynx
• No. or year of volume/issue: 49 5
• Volume: 49
• Issue: 5
• Pages: 755-761
• ISSN (Periodical Title): ISSN : 0385-8146
• Degree grantor/type: 徳島大学
• Date Granted: 2022-03-23
• Dissertation Number: 甲第3598号
• Degree Type: 博士（医学）
• Text Language Code: eng
• Subject Heading: facial asymmetry; sequelae after facial palsy; nasolabial fold of face; three-dimensional scanning analysis; botulinum toxin
• Target Audience: 一般
• Note (General): Objective: During the process of neural recovery after facial palsy, distressing sequelae of static and dynamic facial asymmetry develop in patients with facial palsy. A pronounced nasolabial fold is mainly responsible for static facial asymmetry, which leads to many psychological and social problems in patients. Objective and qualitative assessment of facial appearance is critical to determine the severity of sequelae of static facial asymmetry and whether an intervention is effective for treatment. In the present study, an attempt was made to develop three-dimensional analysis method to assess sequelae of static facial asymmetry after facial palsy. Methods: Eight patients with sequelae of facial asymmetry after facial palsy and ten healthy volunteers were enrolled. We used three-dimensional scanning analysis with a portable non-contact optical scanner to obtain three-dimensional surface data from a patient's face and produced a three-dimensional digital model of the face. We then identified a reference plane fixed with the patient's face, and measured the depth of the nasolabial fold of the face. Results: The nasolabial fold of the face on the affected side was significantly deeper than that on the unaffected side in patients with sequelae of static facial asymmetry after facial palsy. However, the depth of the facial nasolabial fold on the right side was not different from that on the left side in healthy volunteers. Affected-unaffected side differences in the depth of the nasolabial fold in patients with sequelae of static facial asymmetry after facial palsy were significantly larger than left-right differences in the depth of the nasolabial fold in healthy volunteers. Two weeks after treatment with botulinum toxin injection to the affected zygomaticus muscles, affected-unaffected side differences in the depth of the nasolabial fold were significantly decreased in the patients. In the patients who received botulinum toxin, the absolute values of affected-unaffected side differences in the depth of the nasolabial fold measured using the three-dimensional scanning analysis showed a significant positive correlation with the visual analog scale scores of facial asymmetry marked by independent doctors. Conclusion: The present findings suggest that affected-unaffected side differences in the depth of the nasolabial fold of the measured using three-dimensional scanning analysis can be used as an index of sequelae of static facial asymmetry. It is also suggested that the index can evaluate whether interventions are effective for the treatment of sequelae.
• Format (IMT): application/pdf
• Access Restrictions: インターネット公開
• Rights (production): © 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
• Related Material (DOI): 10.1016/j.anl.2022.01.007
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 徳島大学 : 徳島大学機関リポジトリ

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http://repo.lib.tokushima-u.ac.jp/files/public/11/116993/20220509120029604607/k3598_abstract.pdf fulltext

http://repo.lib.tokushima-u.ac.jp/files/public/11/116993/20220509120029981175/k3598_review.pdf fulltext

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