To the Editor: Changes in Condylar Position Within 12 Months After Bilateral Sagittal Split Ramus Osteotomy

2022 ◽  
Author(s):  
Fatemeh Taheri ◽  
Mehrdad Farrokhi
Keyword(s):  
Sagittal Split Ramus Osteotomy ◽  
Condylar Position

Postoperative Condylar Position by Sagittal Split Ramus Osteotomy With and Without Bone Graft

2010 ◽  
Vol 68 (9) ◽  
pp. 2058-2064 ◽  
Author(s):  
Myoung Geun Kang ◽  
Kyoung In Yun ◽  
Chang Hyun Kim ◽  
Je-Uk Park
Keyword(s):  
Bone Graft ◽  
Sagittal Split Ramus Osteotomy ◽  
Condylar Position ◽  
Without Bone Graft

scholarly journals Is distal segment ostectomy essential for stabilization of the condylar position in patients with facial asymmetry?

2021 ◽  
Vol 43 (1) ◽  
Author(s):  
Ki Eun Hong ◽  
Eun Sup Shin ◽  
Jun Park ◽  
Ji Eon Yun ◽  
Chul Hoon Kim ◽  
...  
Keyword(s):  
Temporomandibular Joint ◽  
Clinical Symptoms ◽  
Mandibular Condyle ◽  
Facial Asymmetry ◽  
Position Change ◽  
Sagittal Split Ramus Osteotomy ◽  
Group I ◽  
Significant Difference ◽  
Before And After ◽  
Condylar Position

Abstract Background The purpose of this retrospective study was to evaluate the postoperative change in the position and stability of the mandibular condyle after bilateral sagittal split ramus osteotomy (BSSRO) and BSSRO with distal segmental ostectomy (DSO) in patients with facial asymmetry using 3D computed tomography. Methods The condyles of the patient diagnosed with facial asymmetry were divided into the deviated side (DS) and the non-deviated side (NDS). Group I, which was treated with BSSRO only, and Group II, which additionally received DSO along with BSSRO, were superimposed on the condyle using the pre-and postoperative 3D CT. The amount of condylar change in anteroposterior displacement, mediolateral displacement, and rotation was measured. The clinical symptoms of temporomandibular joint were also evaluated before and after surgery for each patient. Results Between Groups I and II, there was no statistically significant difference in the anteroposterior condylar position on both DS and NDS. And also, there was no statistical difference between the two groups in the mediolateral change on DS but, statistically significant difference on NDS. The change in the rotation of the condyle was observed to rotate inward from both condylar heads of Groups I and II, and a statistically significant difference was observed between the two groups on both DS and NDS. Moreover, no difference in clinical temporomandibular joint symptoms was observed after surgery in each DS and NDS condyle of the two groups. Conclusions As a result of analyzing the condylar position change of the group treated with BSSRO alone and the group treated with BSSRO and DSO in patients with facial asymmetry, there were statistically significant differences in the mediolateral displacement of NDS and the condyle rotation of NDS and DS. However, the anteroposterior condylar position did not show any difference in the bilateral condyles. In addition, since worsening clinical symptoms of bilateral temporomandibular joint were not observed before and after surgery in both groups, it is concluded that it is not necessary to accompany DSO in patients with facial asymmetry (minimum 3 mm, maximum 7 mm).

scholarly journals Sequential changes of postoperative condylar position in patients with facial asymmetry

2016 ◽  
Vol 87 (2) ◽  
pp. 260-268 ◽  
Author(s):  
Svetlana Tyan ◽  
Hyun-Hye Kim ◽  
Ki-Ho Park ◽  
Su-Jung Kim ◽  
Kyung-A Kim ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Orthognathic Surgery ◽  
Facial Asymmetry ◽  
Cone Beam ◽  
Rigid Fixation ◽  
Glenoid Fossa ◽  
Sagittal Split Ramus Osteotomy ◽  
Affected Side ◽  
Condylar Position

ABSTRACT Objective: To evaluate sequential images of the condylar position in relation to the glenoid fossa after orthognathic surgery in patients with facial asymmetry using cone beam computed tomography. Materials and Methods: A total of 20 adult patients (11 men and 9 women; mean age, 22.1 ± 4.02 years) with facial asymmetry who underwent sagittal split ramus osteotomy with rigid fixation were involved. Cone beam computed tomography scans were obtained before treatment (T0), 1 month before the surgery (T1), and 1 day (T2), 3 months (T3), 6 months (T4), and 12 months (T5) after the surgery. The condyle position was evaluated. Results: At 1 day after surgery (T2), the condylar position on both sides significantly changed posteriorly, inferiorly, and laterally, but no significant difference was observed between the nonaffected and affected sides. The condyle on the nonaffected side had a tendency to recover its preoperative position at 3 months after surgery (T3) and inclined slightly laterally up to 1 year after the surgery (T5). The condyle on the affected side returned more closely to the glenoid fossa than to its pretreatment position at 3 months after surgery (T3). Thereafter, it showed a more backward and downward position (T5). Conclusions: The overall condylar position after an orthognathic surgery in patients with facial asymmetry was relatively stable at 1 year after surgery. However, the condyle on the affected side during the first 3 months after surgery should be carefully monitored for surgical stability.

scholarly journals Effects of Sagittal Split Ramus Osteotomy on Condylar Position and Temporomandibular Joint Symptoms: Comparing Three Surgical Methods

2011 ◽  
Vol 21 (4) ◽  
pp. 225-231 ◽  
Author(s):  
YOSHIYUKI TAKATA ◽  
TADAHARU KOBAYASHI ◽  
YUKIKO ONO ◽  
TAKASHI UESUGI ◽  
YUSUKE KATO ◽  
...  
Keyword(s):  
Temporomandibular Joint ◽  
Sagittal Split Ramus Osteotomy ◽  
Surgical Methods ◽  
Joint Symptoms ◽  
Condylar Position
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