TY  - JOUR
A1  - Seifert, Lukas Benedikt
A1  - Langhans, Christopher
A1  - Berdan, Yakub
A1  - Zorn, Sophie
A1  - Klos, Michelle
A1  - Landes, Constantin
A1  - Sader, Robert Alexander
T1  - Comparison of two surgical techniques (HOO vs. BSSO) for mandibular osteotomies in orthognathic surgery - a 10-year retrospective study
T2  - Oral and maxillofacial surgery
N2  - Purpose: To retrospectively compare the high-angled sagittal split osteotomy (HOO) and the bilateral sagittal split osteotomy (BSSO) for the correction of skeletal dysgnathias regarding intra- and postoperative complications.
Methods: The electronic medical records of all patients treated with an orthognathic surgery at the Department for Oral, Maxillofacial and Facial Plastic Surgery, University Hospital Frankfurt, Germany, between the years 2009 and 2019 were retrospectively reviewed.
Results: Two hundred ninety-one patients were included. The overall complication rates were 19.78% (BSSO) compared to 12.5% (HOO) (p = 0.14). Significant differences were found regarding the operation time (HOO < BSSO, p = 0.02), material failure (HOO > BSSO, p = 0.04), and early recurrence requiring revision surgery (HOO < BSSO, p = 0.002). The use of a ramus plate significantly reduced the risk of plate failure (2.8% < 13.6%, p = 0.05). More bad splits (p = 0.08) and early sensory disorders (p = 0.07) occurred in the BSSO group.
Conclusion: The HOO presents a possible alternative to the BSSO since newly developed osteosynthesis material significantly reduces the risk of material failure. The BSSO is accompanied by higher risks of developing complications like a bad split and sensory disorders but, however, remains the standard for large anterior–posterior transpositions of the mandible.
KW  - Orthognathic surgery
KW  - Jaw surgery
KW  - High oblique sagittal osteotomy
KW  - Bilateral sagittal split osteotomy
Y1  - 2022
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/69592
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-695924
SN  - 1865-1569
N1  - Open Access funding enabled and organized by Projekt DEAL.
VL  - 27
IS  - 2
SP  - 341
EP  - 351
PB  - Springer
CY  - Berlin ; Heidelberg
ER  -