Analysis of Related Factors for Fractures After BSSRO in Patients with Osseous Mandibular Deviation.

doi:10.13701/j.cnki.kqyxyj.2022.09.012

Abstract

Abstract: Objective: To investigate the related factors of jaw fractures in patients with osseous mandibular deviation after orthognathic surgery. Methods: Twenty-three patients with bony mandibular deviation who underwent bilateral sagittal split osteotomy and retraction (BSSRO) were selected. The postoperative healing status of the patients was reviewed, and the relationship between the direction of mandibular deviation, wound infection, the way of medial ramus dehiscence, and the occurrence of jaw fractures after BSSRO was analyzed. Results: There had 3 mandibular fractures, 7 infections, 32 types of bone dehiscence in type Ⅰ and 14 in type Ⅱ, and 10 cases of left deviation and 13 cases of right deviation. There were significant differences between wound infection and medial dehiscence of the ascending ramus and fractures after BSSRO. There was a certain correlation between wound infection and postoperative fractures. Type Ⅱ bone dehiscence was more prone to fracture than type Ⅰ bone dehiscence, while there was no statistical significance between the direction of mandibular deviation and jaw fracture after BSSRO. Conclusion: The mandibular fracture after BSSRO in patients with mandibular deviation is related to the dehiscence pattern of the medial ascending ramus and wound infection. The jaw structure should be fully analyzed before the operation. The comprehensive analysis of the dehiscence pattern of the mandibular ascending ramus and the prevention of postoperative wound infection are of great significance to the prevention and treatment of postoperative fractures.

Key words: mandibular deviation, BSSRO, jaw fracture

CAO Yongqing, LI Fangfang, XU Yong, HUANG Zhen, WANG Yujiang.. Analysis of Related Factors for Fractures After BSSRO in Patients with Osseous Mandibular Deviation.[J]. Journal of Oral Science Research, 2022, 38(9): 854-858.

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