Eby T L
Division of Otolaryngology, University of Alabama at Birmingham 35233, USA.
Laryngoscope. 1996 May;106(5 Pt 2 Suppl 80):1-7. doi: 10.1097/00005537-199605001-00001.
More attention is being focused on the growth and development of the facial recess because of the use of cochlear implantation in children over 2 years of age and the prospect of using implants in even younger children. The facial recess and the extended facial recess were measured in 123 temporal bones from 73 individuals ranging in age from 8 weeks in utero to 7 years after birth. The goals were to trace the development of the facial recess and to determine whether this area continues to grow into childhood. The facial recess enlarges throughout fetal life with the development of the facial canal and the tympanic annulus. Reichert's cartilage, seen early in utero in the facial recess, gradually resorbs but may persist in the newborn. In full-term infants, the facial recess reaches 3.25 mm at the oval window and 2.62 mm at the round window. The extended facial recess reaches 3.79 mm at the oval window and 3.04 mm at the round window. No statistically significant growth of the facial recess after birth could be demonstrated in this study. The data suggest that the facial recess is probably adult sized at birth and should allow surgical access for cochlear implantation in very young children.
由于两岁以上儿童人工耳蜗植入的应用以及在更小儿童中使用植入物的前景，人们越来越关注面神经隐窝的生长和发育。对73名个体的123块颞骨进行了面神经隐窝和扩大的面神经隐窝测量，这些个体的年龄范围从子宫内8周大到出生后7岁。目的是追踪面神经隐窝的发育情况，并确定该区域在儿童期是否持续生长。随着面神经管和鼓环的发育，面神经隐窝在整个胎儿期不断扩大。在子宫内早期出现在面神经隐窝的雷切特软骨逐渐吸收，但在新生儿中可能持续存在。足月婴儿中，面神经隐窝在卵圆窗处达3.25毫米，在圆窗处达2.62毫米。扩大的面神经隐窝在卵圆窗处达3.79毫米，在圆窗处达3.04毫米。本研究未显示出生后面神经隐窝有统计学意义的生长。数据表明，面神经隐窝在出生时可能已达成人大小，应该能够为非常年幼的儿童进行人工耳蜗植入手术提供手术入路。
