Abstract:
BACKGROUND:Upper airway narrowing has been a concern of mandibular setback. The aims of this study were (1) to evaluate the effect of bimaxillary rotational setback surgery on upper airway structure in patients with skeletal class III deformities, and (2) to compare the preoperative and postoperative upper airways of class III patients with age- and sex-matched class I control subjects. METHODS:The upper airways of 36 adults who consecutively underwent bimaxillary rotational setback surgery for skeletal class III deformities were assessed by means of cone-beam computed tomography before and at least 6 months after surgery. Results were compared with those of age- and sex-matched control subjects with skeletal class I structure. RESULTS:Before surgery, the class III patients had significantly larger velopharyngeal, oropharyngeal, and hypopharyngeal volumes than did the control subjects (all p < 0.01). The velopharyngeal, oropharyngeal, and hypopharynx volumes decreased significantly after surgery (all p < 0.01). The postoperative airways of class III patients were similar with regard to velopharyngeal, oropharyngeal, and hypopharyngeal volume (all p > 0.01) compared to control subjects. The postoperative velopharyngeal and oropharyngeal airway volumes were associated with the baseline airway volume (p < 0.001) and horizontal movement of the soft palate (p < 0.01). CONCLUSION:These results suggest that upper airway volume is decreased after bimaxillary rotational setback surgery for skeletal class III deformities, but is not smaller than in normal controls, and the postoperative upper airway volume is related to airway volume at baseline and changes in the surrounding structures. CLINICAL QUESTION/LEVEL OF EVIDENCE:Therapeutic, III.
journal_name
Plast Reconstr Surgjournal_title
Plastic and reconstructive surgeryauthors
Hsieh YJ,Chen YC,Chen YA,Liao YF,Chen YRdoi
10.1097/PRS.0000000000000913subject
Has Abstractpub_date
2015-02-01 00:00:00pages
361e-369eissue
2eissn
0032-1052issn
1529-4242pii
00006534-201502000-00039journal_volume
135pub_type
杂志文章abstract::This experimental study demonstrates that iontophoresis can be used to transport biologically active gentamicin into auricular cartilage. Fifty female New Zealand White rabbits were divided into three groups: live controls with unburned ears, live animals with burn-injured ears (deep or partial-thickness), and euthani...
journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:
更新日期:1993-12-01 00:00:00
abstract::The objective of this retrospective follow-up study was to evaluate the outcome of patients with soft-tissue sarcoma treated by the authors' protocol, which consists of a selective combination of conservative surgery and radiotherapy. Patients who relapsed were especially evaluated to improve treatment results. The au...
journal_title:Plastic and reconstructive surgery
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journal_title:Plastic and reconstructive surgery
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doi:10.1097/PRS.0000000000007572
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pub_type: 杂志文章,多中心研究
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journal_title:Plastic and reconstructive surgery
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journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
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journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
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journal_title:Plastic and reconstructive surgery
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journal_title:Plastic and reconstructive surgery
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journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章
doi:10.1097/00006534-198909000-00006
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journal_title:Plastic and reconstructive surgery
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journal_title:Plastic and reconstructive surgery
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journal_title:Plastic and reconstructive surgery
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journal_title:Plastic and reconstructive surgery
pub_type: 杂志文章,meta分析
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journal_title:Plastic and reconstructive surgery
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journal_title:Plastic and reconstructive surgery
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