Anesthesiology · 2003
Mouth opening: a new angle.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Calder Ian, Picard John, Chapman Martin, O'Sullivan Caoimhe, Crockard H Alan
Аннотация
BACKGROUND: The authors hypothesized that craniocervical extension occurs during normal mouth opening.
METHODS: Twenty volunteers were studied. Interdental distance was measured at four different degrees of craniocervical extension.
RESULTS: Interdental distance increased from 28 mm (95% confidence interval, 25-30) in slight flexion to 46 mm (95% confidence interval, 42-49) at full extension. Nearly maximal mouth opening was obtained with 26 degrees (95% confidence interval, 22-30) of craniocervical extension from neutral.
CONCLUSION: Craniocervical extension is an integral part of complete mouth opening in conscious subjects. Fixation of the craniocervical junction by disease, an internal or external fixation device, or technique may restrict mouth opening, with consequences for airway management.
METHODS: Twenty volunteers were studied. Interdental distance was measured at four different degrees of craniocervical extension.
RESULTS: Interdental distance increased from 28 mm (95% confidence interval, 25-30) in slight flexion to 46 mm (95% confidence interval, 42-49) at full extension. Nearly maximal mouth opening was obtained with 26 degrees (95% confidence interval, 22-30) of craniocervical extension from neutral.
CONCLUSION: Craniocervical extension is an integral part of complete mouth opening in conscious subjects. Fixation of the craniocervical junction by disease, an internal or external fixation device, or technique may restrict mouth opening, with consequences for airway management.