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After the description of Le Fort fractures, maxillary osteotomies are used to correct dentofacial deformities. The profile changes on nasolabial region resulting from a Le Fort I osteotomy, also that affects nasal airway. The Subspinal Le Fort I osteotomy (SLFIO) describe to prevent undesirable soft tissue changes. In the literature, too many articles have reported the effectiveness of SLFIO in preventing nasal deformation. However, there is no study to evaluate the nasal volume or septum deviation.
The purpose of this study was objectively and subjectively to compare the effect of Subspinal Le Fort I Osteotomy and Conventional Le Fort I Osteotomy on nasal airway volume and septum deviation without additional modification such as Ans Reduction, Alar Cinch Suture, V-Y closure.
Surgical procedure; Patients were underwent general anesthesia for bimaxillary orthognathic surgery.
The mucoperiosteal flap was raised to expose the bilateral infraorbital foramina, aperture pyriformis, zygomaticomaxillary, and pterygomaxillary buttress. No dissection was performed between the nasal mucosa and the ANS of the patients in Subspinal Le Fort osteotomy group.A triangular osteotomy line was created between the maxilla and the ANS with a piezosurgery. In Conventional osteotomy group, Le Fort I osteotomy was made using a piezosurgical saw after nasal mucosa elevation. In both groups, osteotomes and pterygoid plaques, nasal septum, and lateral nasal walls were separated.
Follow up:
septum deviation and nasal. airway volume value was measured and recorded in the CBCT images taken before the surgery and at the 6th month after the surgery of each patient.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Conventional Group | Experimental | In conventional group, Le Fort I osteotomy was made using a piezosurgical saw after nasal mucosa elevation as usual Le Fort I technique. |
|
| Subspinal Group | Active Comparator | In Subspinal group, No dissection was performed between the nasal mucosa and the ANS of the patients. Osteotomy was performed in the subspinal Le Fort I group that is described by Mommaerts . A triangular osteotomy line was created between the maxilla and the ANS with a piezosurgery. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Conventional | Procedure | Le Fort I osteotomy performed with conventional Le Fort |
|
| Measure | Description | Time Frame |
|---|---|---|
| Evaluation of Septum Deviation | This angle value was measured and recorded in the CBCT images taken before the surgery and at the 6th month after the surgery of each patient. If the angle in the preoperative view is smaller than the angle in the postoperative view, there is a decrease in septum deviation; If it is large, it was accepted that there was an increase in septum deviation. | up to six months |
| Evaluation of Nasal Airway | CBCT scans were scanned for anatomical landmarks to adjust the volume analyzed by automatic segmentation in NemoFAB. Dens endpoint of the axis and nasion were found to be the most consistent at the anterior cranial and posterior caudal borders in the mid-sagittal plane The lateral borders were determined as the most lateral part of the nasal cavity. These markers were used to define the cubic area of interest (ROI), which includes the cranial cavity up to the maxillary base. In the sagittal tomography section, the nasal airway volume was measured in cc on the section taken from the midline. | up to six months |
| Measure | Description | Time Frame |
|---|---|---|
| nasal obstruction scale evaluation | The patients filled out the form about NOSE scales in the preoperative evaluation period and the postoperative 6th month, and the sum of the score values given for each question in the questionnaire was calculated and the total scores were recorded | up to six months |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Selin Çelebi | Kayseri | Meligazi | 38320 | Turkey (Türkiye) |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 6585148 | Background | Guenthner TA, Sather AH, Kern EB. The effect of Le Fort I maxillary impaction on nasal airway resistance. Am J Orthod. 1984 Apr;85(4):308-15. doi: 10.1016/0002-9416(84)90188-x. | |
| 28399616 | Background | Galbiati G, Maspero C, Giannini L, Guenza GC, Zanoni F, Farronato G. Orthodontic--surgical treatment and respiratory function: rhinomanometric assessment. Minerva Stomatol. 2017 Jun;66(3):91-97. doi: 10.23736/S0026-4970.17.04045-6. Epub 2017 Apr 11. |
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| ID | Term |
|---|---|
| D019767 | Maxillofacial Abnormalities |
| ID | Term |
|---|---|
| D019465 | Craniofacial Abnormalities |
| D009139 | Musculoskeletal Abnormalities |
| D009140 | Musculoskeletal Diseases |
| D018640 | Stomatognathic System Abnormalities |
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| ID | Term |
|---|---|
| D003226 | Congresses as Topic |
| ID | Term |
|---|---|
| D009938 | Organizations |
| D004472 | Health Care Economics and Organizations |
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double blind
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double blind
| Subspinal | Procedure | Osteotomy was performed in the subspinal Le Fort I group that is described by Mommaerts |
|
|
| 20625295 | Background | Posnick JC, Agnihotri N. Consequences and management of nasal airway obstruction in the dentofacial deformity patient. Curr Opin Otolaryngol Head Neck Surg. 2010 Aug;18(4):323-31. doi: 10.1097/MOO.0b013e32833b9d6f. |
| 30247560 | Background | Helal HA, Ghanem MAM, Al-Badawy AM, Abdel Haleem MM, Mousa MH. Histological and Anthropometric Changes in the Aging Nose. Aesthet Surg J. 2019 Aug 22;39(9):943-952. doi: 10.1093/asj/sjy245. |
| 3881034 | Background | Schwarz GM, Thrash WJ, Byrd DL, Jacobs JD. Tomographic assessment of nasal septal changes following surgical-orthodontic rapid maxillary expansion. Am J Orthod. 1985 Jan;87(1):39-45. doi: 10.1016/0002-9416(85)90172-1. |
| 25244276 | Background | Kaur S, Rai S, Kaur M. Comparison of reliability of lateral cephalogram and computed tomography for assessment of airway space. Niger J Clin Pract. 2014 Sep-Oct;17(5):629-36. doi: 10.4103/1119-3077.141431. |
| 24985958 | Background | Goncales ES, Duarte MA, Palmieri C Jr, Zakhary GM, Ghali GE. Retrospective analysis of the effects of orthognathic surgery on the pharyngeal airway space. J Oral Maxillofac Surg. 2014 Nov;72(11):2227-40. doi: 10.1016/j.joms.2014.04.006. Epub 2014 Apr 13. |
| 291340 | Background | Montgomery WM, Vig PS, Staab EV, Matteson SR. Computed tomography: a three-dimensional study of the nasal airway. Am J Orthod. 1979 Oct;76(4):363-75. doi: 10.1016/0002-9416(79)90223-9. |
| 9384792 | Background | Kunkel M, Hochban W. The influence of maxillary osteotomy on nasal airway patency and geometry. Mund Kiefer Gesichtschir. 1997 Jul;1(4):194-8. doi: 10.1007/BF03043550. |
| 11405447 | Background | Erbe M, Lehotay M, Gode U, Wigand ME, Neukam FW. Nasal airway changes after Le Fort I--impaction and advancement: anatomical and functional findings. Int J Oral Maxillofac Surg. 2001 Apr;30(2):123-9. doi: 10.1054/ijom.2000.0001. |
| 6594051 | Background | Turvey TA, Hall DJ, Warren DW. Alterations in nasal airway resistance following superior repositioning of the maxilla. Am J Orthod. 1984 Feb;85(2):109-14. doi: 10.1016/0002-9416(84)90002-2. |
| D009057 | Stomatognathic Diseases |
| D000013 | Congenital Abnormalities |
| D009358 | Congenital, Hereditary, and Neonatal Diseases and Abnormalities |