Horizontal osteotomy is one of the most critical step at sagittal split ramus osteotomy (SSRO) and determination of the ideal height of this horizontal osteotomy is essential to avoid nerve and vessel injury.Purpose: The aim of this study was to evaluate the level of the medial horizontal ramus cut as a risk factor for unfavorable outcomes in the SSRO. Materials and Methods: Sixty-four patients with dentofacial deformity who applied to Oral & Maxillofacial Surgery Department between August 2018 and August 2019 and undergone orthognathic surgery were evaluated. Out of 64, 49 patients had SSRO with or without maxillary surgery and genioplasty. Twenty-six patient had postoperative computed tomography scan with 6-months follow-up. Finally, 26 patient with 52 SSRO sides were included in this study. Computed tomography scans were evaluated and classification according to osteotomy levels was made. Postoperative neurosensory deficit, bleeding, and intraoperative complications such as bad split, visible damage to inferior alveolar bundle were assessed. Age, gender, neurosensory deficit, bad splits were analyzed and correlated with the level of the osteotomies. Results: Fifteen osteotomies were above lingula, 24 between apex and base of lingula, and 14 below lingula. One bad split occurred, and no visible damage to the inferior alveolar bundle was seen. There was no significant difference between osteotomy groups in terms of visual analogue scale (VAS) scores (P > 0.05) but in all groups; women's VAS scores are statistically significantly higher than men. (P: 0.036) Conclusion: There is no correlation between the horizontal osteotomy level and intraoperative or postoperative complications. The low medial horizontal osteotomy can be safely performed in SSRO.
Alveol kret yetersizliğinin extraoral otojen onley kemik greftleri ile ogmentasyonda tünel ve krestal isizyon tekniklerinin karşılaştırılması Comparison of tunnel and crestal incision techniques in alveolar cret deficiency using extraoral autogeneous onley bone grafts ÖZET Amaç: Bu çalışmanın amacı alveoler kret yetersizliğinde krestal ve tünel olmak üzere 2 farklı insizyon tekniği kullanılarak ekstraoral donör sahadan alınan otojen kemik greftin yerleştirilmesinden sonra meydana gelen alıcı bölgedeki komplikasyonların karşılaştırılması ve değerlendirilmesidir. Gereç ve Yöntem: Bu çalışmada 13 hastadaki iliak greft ile ogmente edilen 14 krestal, 27 tünel yöntemi olmak üzere 41 bölgedeki minör (greftte minör açılma, vida başının açılması, sütur açılması, geçici parestezi, ılımlı ve/veya orta şiddette enfeksiyon) ve majör (greft kaybına neden olan enfeksiyon, majör açıklık, kalıcı parestezi) komplikasyonlar retrospektif olarak değerlendirilmiş ve iki farklı insizyon tekniği karşılaştırılmıştır. Ayrıca donör saha morbiditeleri değerlendirilmiştir. Bulgular: Tünel insizyon tekniği kullanılan grupta minor komplikasyon oranı %29.6 iken majör komplikasyon görülmemiştir. Krestal insizyon yapılan grupta % 50 minör komplikasyon ve %28.6 majör komplikasyon görülmüştür. İki farklı insizyon tekniği kullanılan gruplar arasında minör ve majör komplikasyon oranlarında istatistiksel olarak anlamlı fark bulunmuştur. İlaveten krestal teknikte ogmente edilen bölge sayısı ile minör komplikasyon oluşma riski insidansı arasında anlamlı ters korelasyon görülmüştür. Sonuç: Ekstraoral otojen greftlerde subperiosteal tünel yaklaşımı krestal yaklaşıma göre alıcı saha komplikasyon oranı dikkate alındığında daha başarılı ve alternatif bir yöntem olabilir. Anahtar kelimeler: Atrofik çene, ekstraoral onley kemik grefti, tünel insizyon tekniği SUMMARY Aim: The aim of this study was to compare and evaluate two techniques', crestal and tunnel incision, complications after extraoral autogenous bone grafting at recipient area, which are used to treat alveol crest insufficiency. Materials and Method: Minor complications (minor openning in graft, opening of screw head, suture opening, temporary paresthesia, mild/moderate infection) and major complications (Infection causing graft loss, major opening, permanent paresthesia) of 41 graft sites (14 crestal and 27 tunnel methods) which were augmented with iliac graft in 13 patients are evaluated and compared with two different techniques retrospectively. Furthermore, donor area morbidities were evaluated. Results: While minor complication rate in the group where tunnel incision technique used is 29.6%, major complication is not encountered. In the crestal incision group, 50% minor complication and 28.6% major complication are encountered. Minor and major complication rates among groups were statistically significant. In addition, significant negative correlation was found between the number of region which is augmented with crestal technique and incidence risk that leads minor complication. Conclusion: Whe...
Objectives The aim of this study was to evaluate the sensory function of the infraorbital nerve after orthognathic surgery (OS) . Materials and methods Patients who underwent Le Fort I osteotomy with or without BSSO for dentofacial deformity treatment were studied. Two groups were created according to whether BSSO was performed. Class A tests were performed to determine the degree of peripheral nerve damage. The Class B test was performed if decreased sensation was detected in at least one of these tests. A Class C test was performed if abnormal sensation was detected. Results Twenty-eight patients (n = 56) who underwent OS were included in this prospective study. Of the patients, 57.1% were female, 42.9% were male, and the mean age was 24.6 (± 3.8). Seven patients were in group 1 (n = 14), and 21 patients were in group 2 (n = 42). In both groups, there were statistically significant differences between T1 and T2 (p < 0.001), and the mean NSD score at T2 was higher than that at T1. The mean NSD score in the single jaw group was higher than that in the double jaw group at all time points. Conclusions Bimaxillary surgeries had a negative effect on the somatosensory changes that developed in the early period. The upper lip’s somatosensorial recovery was faster than IOR and single jaw recovery was faster than double jaw. Clinical relevance: Maxillofacial surgeons performing orthognathic surgery should be aware that in double jaw operations, changes in the somatosensory function of the ION are more severe.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.