A retrospective evaluation of rigid fixation in orthognathic surgery using a biodegradable self-reinforced (70L:30DL) polyactide

2004 ◽  
Vol 33 (7) ◽  
pp. 664-669 ◽  
Author(s):  
R. Mazzonetto ◽  
A.O. Paza ◽  
D.B. Spagnoli
Keyword(s):  
Orthognathic Surgery ◽  
Rigid Fixation ◽  
Retrospective Evaluation

scholarly journals A Retrospective Evaluation of Facial Volume in Patients Submitted to Bimaxillary Orthognathic Surgery Using 3D Stereophotogrammetry

2021 ◽  
Vol 6 ◽  
pp. 247275122199027
Author(s):  
Patrick Rocha Osborne ◽  
Laís Valencise Magri ◽  
Ana Maria Bettoni Rodrigues da Silva ◽  
Marco Antônio Moreira Rodrigues da Silva ◽  
Alexander Tadeu Sverzut ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Orthognathic Surgery ◽  
Three Dimensional ◽  
The Other ◽  
Retrospective Evaluation ◽  
Le Fort ◽  
Significant Difference ◽  
Bimaxillary Orthognathic Surgery ◽  
3D Stereophotogrammetry ◽  
Le Fort I

The purpose of this retrospective study was to determine postoperative volume differences associated with orthognathic surgery after controlling for time, gender, age, and side of face. Three-dimensional (3D) photographs of 10 patients submitted to simultaneous Le Fort I + Bilateral Sagittal Split osteotomies were analyzed. The images were obtained using a Vectra® M3 device (Canfield, NJ, USA) and were captured postoperatively, at 1 week (1S), 1 month (1M), 2 months (2M), 6 months, (6M) and 1 year (1A). The photo taken at 1A was used as the basis of comparison for the other photos (1S, 1M, 2M, and 6M). Greatest facial volume was observed at 1 week after surgery (42.54 cm3, SD = 29.71 cm3), with men in this period showing higher values (60.20 cm3, SD = 36.75 cm3) than women (30.76 cm3, SD = 19.04 cm3). The most extensive facial volume reduction occurred between the first week and the first month; postoperatively (52.1%). No significant difference was found between age and side groups.

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.

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