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Bratislava Medical Journal 2020 Bratislava Medical Journal Vol.121, No.6, p.379–385,2020
Bratislava Medical Journal 2020 Bratislava Medical Journal Vol.121, No.6, p.379–385,2020
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Bratislava Medical Journal Vol.121, No.6, p.379–385,2020 |
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| Title: Condylar position and mandibular function after bilateral sagittal split osteotomy | ||
| Author: D. Hirjak, B. Dvoranova, J. P. Reyneke, M. Machon, A. Neff | ||
| Abstract: AIM: The purpose of this retrospective study was to perform an evaluation of postoperative positional changes of the condyle and mandibular function after bilateral sagittal split osteotomy (BSSO) with manual proximal segment positioning. PATIENTS: 45 patients were divided into the 2 groups ‒ G1 (advancement ‒ 14 patients) and G2 (setback – 31 patients). Rigid internal fixation screws were utilized in all cases. Inclusion criteria were only BSSO, no TMJ symptoms preoperatively and age 18 or older. RESULTS: The differences between pre- and postoperative condyle position were evaluated using measurements taken from preoperative CT scans and compared to CT scans made a minimum of 6 months postoperatively. The positional changes in both the axial and sagittal planes were measured and compared. The recovery of mandibular function was evaluated by measuring maximal interincisal opening (MIO). The results revealed that condylar positional changes after BSSO in both groups were minimal and not significantly different for all three dimensions measured. The recovery of mandibular function was faster in the group G2 than in the group G1. Mandibular function reached almost preoperative level in 6-12 months postoperatively in both groups. CONCLUSION: The results demonstrated that following BSSO, only insignificant condylar displacement and functional changes occurred within 6 to 12 months postoperatively (Tab. 4, Fig. 2, Ref. 47). |
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| Keywords: condylar position, bilateral sagittal split osteotomy (BSSO), mandibular function, condylar sag, temporomandibular joint (TMJ) | ||
| Published online: 31-May-2020 | ||
| Year: 2020, Volume: 121, Issue: 6 | Page From: 379, Page To: 385 | |
| doi:10.4149/BLL_2020_062 |
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