Radiologic Analysis of Malar Arch Movement in Reduction Malarplasty Without Bony Resection
| Autor: | Jae-Yong Jeong, Jae-Hee Kim, Taek-Kyun Kim, Hoon Young Lee |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_treatment
Radiography Malar arch Osteotomy Surgical methods Resection 03 medical and health sciences 0302 clinical medicine medicine Humans Arch skin and connective tissue diseases 030223 otorhinolaryngology Reduction (orthopedic surgery) Retrospective Studies Orthodontics Zygoma business.industry Soft tissue 030206 dentistry General Medicine Plastic Surgery Procedures Otorhinolaryngology Surgery Tomography X-Ray Computed business |
| Zdroj: | Journal of Craniofacial Surgery. 32:1307-1310 |
| ISSN: | 1536-3732 1049-2275 |
| DOI: | 10.1097/scs.0000000000007168 |
| Popis: | BACKGROUND Reduction malarplasty has been popular among Asians with a wide facial width. In general, malar setback after bony resection is regarded as the standard objective of reduction malarplasty. However, unnecessary bony resection may lead to various postoperative complications. Therefore, we suggest the use of reduction malarplasty without bony resection to achieve a similar narrowing effect of the facial width, based on radiographic analysis of malar arch movement. PATIENTS AND METHODS This retrospective study analyzed 48 patients with a wide midface who underwent reduction malarplasty between September 2018 and December 2019. We included 40 cases of advancement repositioning malarplasty (AR) without bony resection and 8 cases of setback reduction malarplasty (SR) with bony resection. The three-dimensional position of the malar arch expressed by coordinates (x, y, and z) on three-dimensional computed tomography scans was used to compare the positional change between the surgical methods. The paired t-test, Wilcoxon text, and independent t-test were used in data analysis, and statistical analysis was performed using SPSS 23.0 software. RESULTS Medial and superior movement of the freed malar arch segment was significantly different between AR and SR (P < 0.05). Although medialization and superiorization were not significantly different between AR and SR, there was a significant difference in anterior-posterior movement between AR and SR (P < 0.05). CONCLUSION The radiologic analysis based on malar arch movement between AR and SR showed similar narrowing effects on medialization and superiorization of the malar arch regardless of bony resection. Therefore, the AR can be effectively applied in case of arch dominant type or malar asymmetry. In addition, further comprehensive study including analysis on movement of facial soft tissue following malar bony movement is expected based on this study in near future. |
| Databáze: | OpenAIRE |
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