Hemifacial Microsomia
Conditions
Interventions
Treatment group:Release of the mandibular ligament
Standard Mandibular Distraction Osteogenesis
Control Group:Standard Mandibular Distraction Osteogenesis
Sponsors
Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine
Eligibility
Sex/Gender
All
Age
6 Years to 12 Years
Inclusion criteria
Inclusion criteria: 1.Pediatric patients aged 6–12 years (inclusive) with hemifacial microsomia; 2.Diagnosed by three-dimensional CT as Pruzansky type II mandible (type IIa: mandibular ramus, condyle, and temporomandibular joint are present but hypoplastic and abnormally shaped; type IIb: mandibular ramus is hypoplastic with significantly abnormal shape and position, being midline or anteriorly positioned, with no articular connection between the mandible and temporal bone); 3.Undergoing first-time mandibular distraction osteogenesis (MDO);
Exclusion criteria
Exclusion criteria: 1.Patients with other concomitant craniofacial deformities; 2.A history of prior maxillofacial surgery; 3.Lack of informed consent from the patient's guardian; 4.Concomitant diseases that contraindicate general anesthesia surgery;
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Relapse rate at 12 months postoperatively; | — |
Secondary
| Measure | Time frame |
|---|---|
| Facial symmetry;Adverse Events;Complications;Bone structural stability;Laboratory Examinations;Vital Signs;Function and satisfaction; | — |
Countries
China
Contacts
Public ContactXiaojun Chen
Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine
Outcome results
None listed