Objectives

To compare upper airway changes following bimaxillary surgery for correction of Class III deformity between patients with unilateral cleft lip and palate (UCLP) and bilateral cleft lip and palate (BCLP) and to compare the preoperative and postoperative upper airway among patients with UCLP and BCLP to healthy controls.

Materials and Methods

Sixty adults with CLP-related skeletal Class III deformity (30 UCLP and 30 BCLP) who consecutively underwent bimaxillary surgery were studied retrospectively. Cone-beam computed tomography (CBCT) was performed before and after surgery to measure upper airway and movements of facial skeletal and surrounding structures. CBCT images from 30 noncleft skeletal Class I adults, matched by age, gender, and body mass index and without surgical intervention, served as controls.

Results

After surgery, the volume of the nasopharynx increased in patients with CLP (both P < .001). Patients with CLP did not differ from controls in postoperative volume of the nasopharynx or oropharynx. However, the nasal cavity differed significantly between patients with CLP and controls (P < .001).

Conclusions

After bimaxillary surgery, the nasal cavity of patients with CLP differed significantly compared with the controls. Volumes of the nasopharynx and oropharynx did not differ between patients with CLP after surgery and controls.

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Author notes

a

Graduate Student, Graduate Institute of Dental and Craniofacial Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan.

b

Assistant Professor, Department of Plastic and Reconstructive Surgery and Craniofacial Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan.

c

Assistant Professor, Craniofacial Research Center, Chang Gung Memorial Hospital, Linkou; and Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taoyuan, Taiwan.

d

Professor, Department of Plastic and Reconstructive Surgery and Craniofacial Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan.

e

Professor, Graduate Institute of Dental and Craniofacial Science, College of Medicine, Chang Gung University, Taoyuan; Craniofacial Research Center, Chang Gung Memorial Hospital, Linkou; and Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taoyuan, Taiwan.

Supplementary data