Stability of unilateral sagittal split ramus osteotomy for correction of facial asymmetry: long-term case series and literature review
Journal of the Korean Association of Oral and Maxillofacial Surgeons
;
: 156-164, 2015.
Article
in English
| WPRIM
| ID: wpr-75716
ABSTRACT
Bilateral sagittal split ramus osteotomy is considered a standard technique in mandibular orthognathic surgeries to reduce unexpected bilateral stress in the temporomandibular joints. Unilateral sagittal split ramus osteotomy (USSO) was recently introduced to correct facial asymmetry caused by asymmetric mandibular prognathism and has shown favorable outcomes. If unilateral surgery could guarantee long-term postoperative stability as well as favorable results, operation time and the incidence of postoperative complications could be reduced compared to those in bilateral surgery. This report highlights three consecutive cases with long-term follow-up in which USSO was used to correct asymmetric mandibular prognathism. Long-term postoperative changes in the condylar contour and ramus and condylar head length were analyzed using routine radiography and computed tomography. In addition, prior USSO studies were reviewed to outline clear criteria for applying this technique. In conclusion, patients showing functional-type asymmetry with predicted unilateral mandibular movement of less than 7 mm can be considered suitable candidates for USSO-based correction of asymmetric mandibular prognathism with or without maxillary arch surgeries.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Postoperative Complications
/
Prognathism
/
Temporomandibular Joint
/
Radiography
/
Incidence
/
Follow-Up Studies
/
Facial Asymmetry
/
Orthognathic Surgery
/
Osteotomy, Sagittal Split Ramus
/
Head
Type of study:
Diagnostic study
/
Incidence study
/
Observational study
/
Prognostic study
Limits:
Humans
Language:
English
Journal:
Journal of the Korean Association of Oral and Maxillofacial Surgeons
Year:
2015
Type:
Article
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