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Using orthodontic elastic traction during the active period of distraction osteogenesis to increase the effective vertical extension of hemifacial microsomia patients: A multi-center randomized clinical trial
- Source :
- Journal of Cranio-Maxillofacial Surgery. 49:1054-1063
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- In this study, the aim was to assess whether using elastic traction during the active period of distraction osteogenesis could effectively increase the vertical extension. Patients with Pruzansky-Kaban Type II mandibular deformity were recruited and randomly assigned into Elastic traction + Distraction Osteogenesis group or Distraction Osteogenesis group, respectively. During the active period, the experimental group received orthodontic elastic traction 3 days after distraction osteogenesis implantation, while the control group received no treatment. All the participants underwent computed tomography (CT) examination before surgery, at the end of the active period, 6 months and 2 years after distraction osteogenesis tractor implantation. The primary outcome was the effective vertical extension rate of the mandible from the baseline to the end of the active period after operations, and there were 7 secondary outcomes used. 70 patients were included. The effective vertical extension rates were 85.021% ± 7.432% (mean ± SD) and 68.811% ± 9.510% (mean ± SD) in the experimental and control groups, respectively (P = 0.001). The average distances between the lower middle incisor point to the sagittal plane at the end of the active period were 2.485 ± 1.411 mm and 3.938 ± 2.293 mm in the experimental and control groups, respectively (P = 0.026). At the end of the active period of distraction osteogenesis, the average values of the mandibular occlusal plane canting were −4.887 ± 3.126 mm and −0.177 ± 4.029 mm in the experimental and control groups, respectively (P = 0.026). Elastic traction-assisted distraction osteogenesis could improve traction efficiency and facial symmetry.
- Subjects :
- medicine.medical_treatment
Osteogenesis, Distraction
Mandible
Dental Occlusion
03 medical and health sciences
Goldenhar Syndrome
0302 clinical medicine
Incisor
Traction
Deformity
Humans
Medicine
Orthodontics
business.industry
030206 dentistry
Traction (orthopedics)
medicine.disease
Sagittal plane
Hemifacial microsomia
medicine.anatomical_structure
Facial Asymmetry
Otorhinolaryngology
030220 oncology & carcinogenesis
Distraction osteogenesis
Surgery
Oral Surgery
medicine.symptom
business
Facial symmetry
Subjects
Details
- ISSN :
- 10105182
- Volume :
- 49
- Database :
- OpenAIRE
- Journal :
- Journal of Cranio-Maxillofacial Surgery
- Accession number :
- edsair.doi.dedup.....7c8a1668a2a2d813cfa8b0f7bdeea81d