摘要
目的通过神经内窥镜下桥小脑角区的解剖,为内窥镜辅助下该区域病变的手术治疗提供了解剖学依据,并探讨其临床应用价值。方法在15具福尔马林固定的成人尸头标本和1具新鲜成人尸头标本上进行桥小脑角区的窥镜解剖学研究,在窥镜下分区并测量有关数据。结果内窥镜能清晰地显示颅神经及其附近的血管,桥小脑角区从头侧至尾侧被血管神经束分为三个间隙:间隙Ⅰ、间隙Ⅱ、间隙Ⅲ,其中间隙Ⅰ又分为Ⅰa、Ⅰb亚间隙(Subspace),间隙Ⅰ、间隙Ⅱ是内窥镜主要的观察通道。结论神经内窥镜可明显改善深部术野的照明效果和显微解剖结构的识别,对显微外科手术起重要的辅助作用。
Objective To study the structure of the cerebellopontine angle (CPA) zone by the neuroendoscope throngh retrosigmoid approach and its clinical value. Methods Fifteen specimens of formalin - fixed adult cadaveric heads and 1 specimen of fresh adult cadaveric head were used in the study. The structures of the CPA zone were observed by alternately using an operating microscope and a neuroendoscope. The anatomic parameters of CPA zone were measured. Results The cerebral nerves and blood vessels nearby them in the CPA zone could be observed very well by neuroendoscope. The CPA zone is rostrocaudally divided into 3 compartments, i. e. spaces Ⅰ,Ⅱand Ⅲ by the distinct bundles of the cerebral nerves and blood vessels.Space Ⅰ is subdivided into two parts again.Space Ⅰ and space Ⅱ are the main channel to explore the CPA zone. The mean distances from the porus acusticus internus, intemalostium of Meckel's cave and foramen jugulare to the genu of sigmoid sinus were respectively 45. 3mm+±3.20mm,50. 6mm±4. 2mm,40. 3mm±4. 5mm. Conclusions The neuroendoscope can make up the deficiencies of the microscope and is the importantly helpful to the microsurgical operation.
出处
《华南国防医学杂志》
CAS
2005年第1期18-20,共3页
Military Medical Journal of South China
基金
全军医药卫生科研基金课题(01MA039)
