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Updated: Aug 6, 2026
A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible
Published on: January 28, 2020
[Stability of the mandible after high sagittal supraforaminal osteotomy. Roentgen cephalometric study]
1Klinik und Poliklinik für Kieferorthopädie, Universitätsklinikum Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg. rfriedri@uke.uni-hamburg.de
Aim Of The Study:
The aim of this study was to investigate the stability achieved with high sagittal supraforaminal osteotomy (HSSO) for setback and advancement procedures of the mandibular ramus.
Material And Methods:
Computerized cephalometric X-rays of 102 patients, taken at four different times during treatment, were evaluated.
Results:
The mean postoperative relapse was 20%, depending on the extent of the surgical correction (correlation coefficient: -0.68). Mandibular setback gave more stability than mandibular advancement. The type of osteosynthesis (positional screw combined with miniplate osteosynthesis or intermaxillary fixation) did not influence the stability. Unimaxillary osteotomies were more stable than bimaxillary procedures (p < 0.001).
