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Anatomic and spiral computed tomographic study of the genial tubercles for genioglossus advancement.
Authors:Shan Kai Yin  Hong Liang Yi  Wen Ying Lu  Jian Guan  Hong Min Wu  Zhen Yu Cao  Dong Zhen Yu  Yan Yan Huang  Chun Gen Wu
Affiliation:Department of Otolaryngology, Affiliated Shanghai Sixth People's Hospital of Shanghai Jiao Tong University, Shanghai, China. otoyinshank@126.com
Abstract:
OBJECTIVE: To measure and compare Chinese mandibular genial tubercles measured anatomically and with computed tomography (CT). STUDY DESIGN AND SETTING: Spiral CT scans were taken of 40 adult human skulls; the superior genial spines were measured using anatomic and CT methods. RESULTS: The height and width of the superior genial spines, mandible thickness, and distance from the menton to the inferior and superior margins of the superior genial spines were 5.82 +/- 0.71, 6.98 +/- 1.35, 11.95 +/- 1.59, 11.08 +/- 2.05, and 16.91 +/- 2.30 mm from anatomic measurements and 6.17 +/- 0.71, 7.01 +/- 1.13, 12.19 +/- 1.64, 10.41 +/- 1.55, and 15.73 +/- 2.12 mm using spiral CT, respectively. The anatomic and CT measurements were correlated. CONCLUSION: Spiral CT of the genial tubercles can help locate the osteotomy in genioglossus advancement. SIGNIFICANCE: This study acquired reference data on Chinese genial tubercles demonstrating that CT measurements of the genial tubercles reflect their anatomy, which should allow accurately locate the osteotomy.
Keywords:
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