摘要
目的对经枕下远外侧经髁人路至脑干腹侧区进行尼微解剖研究。方法成人湿性头颅标本10例（20侧），模拟枕下远外侧经髁入路进行分层解剖，并比较磨除枕骨髁对脑千腹侧区暴露范围的影响。结果采用倒“U”形切口暴露充分，术中寻找枕下三角、寰惟横突、头外侧直肌等解剖标志定化深层结卡勾．、与不磨枕骨髁比较，磨除部分直至全部枕骨髁后水平暴露距离分别增加10．9mm和12．6mm，手术深度分别降低13．5nm和20．5mm。结论经枕下远外侧经髁入路磨除部分枕骨髁能够明黟改善脑下腹侧区的暴露，术L}】应根据病变特征进行适量的枕骨髁磨除。
Objective To investigate the exposed areas in brainstem ventral region via the suboccipital far- lateral trauscondylar approach. Method Ten（ 20 sides） adult cadaveric specimens which perfused wittl colored silicone were studied. Stcpwise dissections via the suboceipital far-lateral transcondylar approach to ventral region of brainstem and the different exposures were compared by resecting the occipital condyle gradually. Results The inverse ＂U＂ shape could provide with a sufficient operative exposure. The deep layer strueture intraoperative process by identifing with those anatomical markers of suboeeipital triangle, transverse process of the atlas and rectus capitis lateralis was localized. Compared with the no- resecting oeeipital condyle,the exposures of ventral- lateral region of brainstem increased 10. 9 mm and 12.6 ram, the operative depth decreased 13.5 mm and 20. 5 mm by resecting occipital condyle from partial to total length respectively. Conclusions Suboccipital far - lateral transcondylar approach could improve the exposure extent of ventral region of brainstem by resetting occipital condyle, however it was improtant to decide an optimal extent of occipital condyle to resect intraoperatively accroding to the lesion feature.
出处
《中华神经外科杂志》
CSCD
北大核心
2011年第5期599-602,共4页
Chinese Journal of Neurosurgery
关键词
解剖
远外侧经髁入路
脑干腹侧区
枕骨髁
Dissection
Far - lateral lranseondylar approach
Brainstem ventral region
Occipital condyle
