Oral surgery, oral medicine, oral pathology and oral radiology · 2012
Factors predictive of pterygoid process fractures after pterygomaxillary separation without using an osteotome in Le Fort I osteotomy.
СтатьяНазвание и аннотация: Перевод в очереди
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Kanazawa Teruyuki, Kuroyanagi Norio, Miyachi Hitoshi, Ochiai Shigeki, Kamiya Noboru, Nagao Toru, Shimozato Kazuo
Аннотация
OBJECTIVE: This study demonstrated pterygomaxillary disjunction patterns and elucidated factors related to unfavorable pterygomaxillary junction fractures in Le Fort I osteotomy without using an osteotome.
STUDY DESIGN: Clinical and anatomical data obtained from computed tomography images (100 sides) were analyzed for their ability to predict patterns of pterygomaxillary disjunction.
RESULTS: Separation of the pterygomaxillary junction was most frequently performed at the maxillary tuberosity (48.0%). Twenty-eight pterygoid plates were fractured. Male gender, increased age, thickness of the pterygomaxillary junction, and length of the maxillary tuberosity were significant risk factors for pterygoid process fractures. We also identified that a pterygomaxillary junction thickness less than 2.6 mm and a maxillary tuberosity length of more than 11.5 mm indicated a statistically significant risk of pterygoid process fractures.
CONCLUSIONS: Prediction of frangible pterygoid plates by preoperative quantitative evaluation of morphometric values provides useful information for selecting safe procedures.
STUDY DESIGN: Clinical and anatomical data obtained from computed tomography images (100 sides) were analyzed for their ability to predict patterns of pterygomaxillary disjunction.
RESULTS: Separation of the pterygomaxillary junction was most frequently performed at the maxillary tuberosity (48.0%). Twenty-eight pterygoid plates were fractured. Male gender, increased age, thickness of the pterygomaxillary junction, and length of the maxillary tuberosity were significant risk factors for pterygoid process fractures. We also identified that a pterygomaxillary junction thickness less than 2.6 mm and a maxillary tuberosity length of more than 11.5 mm indicated a statistically significant risk of pterygoid process fractures.
CONCLUSIONS: Prediction of frangible pterygoid plates by preoperative quantitative evaluation of morphometric values provides useful information for selecting safe procedures.
Предметные рубрики MeSH
AdolescentAdultAge FactorsCephalometryFemaleFollow-Up StudiesForecastingHumansImage Processing, Computer-AssistedImaging, Three-DimensionalMaleMaxillaMaxillary SinusOsteotomy, Le FortOsteotomy, Sagittal Split RamusPrognathismRisk FactorsSex FactorsSkull FracturesSphenoid BoneTomography, Spiral ComputedYoung Adult