Publication: Three-Dimensional Stereophotogrammetric Evaluation of Facial Soft Tissue Changes Over a 6-Month Period Following Bimaxillary Surgery In Skeletal Class 3 Patients
Abstract
Amaç: Bu çalışmadaki amacımız ortognatik cerrahi sonrası yüz bölgesinde oluşan ödem ile ilişkili hacimsel değişiklikleri ölçmek ve belirli süre içinde (ortognatik cerrahiyi takiben eden 6 ay boyunca aylık olarak) yüz bölgesindeki farklı bölgelerdeki ödemin nasıl azaldığını değerlendirmektir.Gereç-Yöntem: Bu retrospektif çalışma, çift çene ortognatik cerrahi operasyonu (Maksiler LeFort Tip I ile beraber yapılan mandibular çift taraflı sagittal split osteotomi) uygulanan İskeletsel Sınıf 3 hastaların üç boyutlu (3B) steryofotogrametrik görüntüleri kullanılarak gerçekleştirilmiştir. 3B görüntüler 3dMDface Sistemi (Atlanta, GA, ABD) ile elde edilmiştir. 3B görüntüler her hasta için şu aralıklarla çekilmiştir; cerrahi öncesi (T00), cerrahiden 1 hafta sonra (T0), cerrahiden 1 ay sonra (T1), cerrahiden 2 ay sonra (T2), cerrahiden 3 ay sonra (T3), cerrahiden 4 ay sonra (T4), cerrahiden 5 ay sonra (T5) ve cerrahiden 6 ay sonra (T6). Yumuşak doku parametreleri Mimics 20.0 Materialise (Materialise Europe, Leuven, Belçika) yazılımı ile incelenmiştir.Bulgular ve Sonuç: En fazla ödem gören bölgeler arasında mandibular ramus ve angulus, yanak, alt dudak ve çene ucu yer almıştır. Çalışmanın sonucunda, cerrahi sonrası meydana gelen ödemin ilk ay içerisinde en fazla azaldığı (%45) ve ardından daha yavaş bir şekilde dördüncü aya kadar %90 oranında azaldığı belirlenmiştir.
Aim: The aim of this study is to determine the volume changes associated with facial swelling following orthognathic surgery and to evaluate how facial swelling is changing-decreasing over a 6-month period in different areas of the face.Materials and Methods: This retrospective study was performed on 3D stereophotogrammetric images of skeletal Class 3 patients who had underwent bimaxillary orthognathic surgery (maxillary Le Fort I type osteotomy combined with mandibular bilateral sagittal split osteotomy). Images have been taken with 3dMDface System (Atlanta, GA, USA). Three dimensional images were acquired 8 times for each patient in the following time intervals; Before surgery (T00), 1 week after surgery (T0), 1 month after surgery (T1), 2 months after surgery (T2), 3 months after surgery (T3), 4 months after surgery (T4), 5 months after surgery (T5) and 6 months after surgery (T6). Soft tissue parameters were measured by using Mimics 20.0 software launched by Materialise (Materialise Europe, World Headquarters, Leuven, Belgium).Results and Conclusion: According to the results of this study most of the post-orthognathic surgical swelling occurs in the mandibular angle and ramus, the cheek and the chin. A substantial amount of swelling (around 45%) subsides within 1 month after surgery, with a 90% resolution in 4 months.
Aim: The aim of this study is to determine the volume changes associated with facial swelling following orthognathic surgery and to evaluate how facial swelling is changing-decreasing over a 6-month period in different areas of the face.Materials and Methods: This retrospective study was performed on 3D stereophotogrammetric images of skeletal Class 3 patients who had underwent bimaxillary orthognathic surgery (maxillary Le Fort I type osteotomy combined with mandibular bilateral sagittal split osteotomy). Images have been taken with 3dMDface System (Atlanta, GA, USA). Three dimensional images were acquired 8 times for each patient in the following time intervals; Before surgery (T00), 1 week after surgery (T0), 1 month after surgery (T1), 2 months after surgery (T2), 3 months after surgery (T3), 4 months after surgery (T4), 5 months after surgery (T5) and 6 months after surgery (T6). Soft tissue parameters were measured by using Mimics 20.0 software launched by Materialise (Materialise Europe, World Headquarters, Leuven, Belgium).Results and Conclusion: According to the results of this study most of the post-orthognathic surgical swelling occurs in the mandibular angle and ramus, the cheek and the chin. A substantial amount of swelling (around 45%) subsides within 1 month after surgery, with a 90% resolution in 4 months.