Upper Airway 3D Changes of Patients With Cleft Lip and Palate After Orthognathic Surgery

The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association
Marilia Sayako Yatabe-IoshidaIvy Kiemle Trindade-Suedam

Abstract

The purpose of this study was to 3-dimensionally assess the airway characteristics of patients with unilateral cleft lip and palate (UCLP) and bilateral cleft lip and palate (BCLP) who underwent orthognathic surgery. This was a retrospective study. The study took place at a national referral center for cleft lip and palate rehabilitation. The sample comprised cone-beam computed tomography (CBCT) scans obtained before and after orthognathic surgery of 15 individuals (30 CBCT scans), divided into 2 groups: UCLP group (n = 9 patients/18 CBCT scans) and BCLP group (n = 6/12 CBCT scans). All patients had a nonsyndromic UCLP or BCLP and a skeletal class III malocclusion at the preoperative period. Airway volume, pharyngeal minimal cross-sectional area (mCSA), location of mCSA, sella-nasion-A point (SNA) and sella-nasion-B point (SNB) angles, and condylion-A point and condyloid-gnathion linear measurements were assessed in open-source software (ITK-SNAP and SlicerCMF). Airway dimensions of patients with UCLP and BCLP increase after orthognathic surgery. After orthognathic surgery, UCLP group showed a significant 20% increase in nasopharynx volume. Although not significant, BCLP group also showed an increase of 18% in the same region. ...Continue Reading

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Citations

Jul 6, 2019·Current Opinion in Otolaryngology & Head and Neck Surgery·Joseph B Vella, Sherard A Tatum

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Software Mentioned

ITK
SPHARM
PDM
Dolphin
SlicerCMF
SNAP

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