枕下远外侧入路的显微解剖及临床应用

目的：研究枕下远外侧入路的显微解剖，并用以指导临床工作。方法：对14具甲醛固定的成人湿性头颅标本进行枕下远外侧入路的显微解剖，并对12例下斜坡及枕骨大孔前方脑干腹侧肿瘤患者进行手术切除。结果：寰椎横突及枕下三角是枕下远外侧入路中的重要解剖标志，磨除枕髁、颈静脉结节能增加术野的暴露。本组12例肿瘤患者中全切除9例，次全切除3例，无手术死亡。结论：研究枕下远外侧入路的显微解剖，有助于安全切除下斜坡和枕骨大孔腹侧肿瘤。

Microsurgical anatomy and clinical study of the far lateral suboccipital approach

Objective:To investigate the microsurgical anatomy of the far lateral suboccipital approach and to evaluate its application to surgical approach. Methods:Fourteen cadaveric heads(28 sides) were dissected through far lateral suboccipital approach to obtain the anatomical data of this approach.A retrospective analysis of microsurgical treatment in 12 cases of tumors situated at lower clivus and foramen magnum was performed. Results:Transverse process of C_1 and inferior occipital trangle were important anatomical marks in the far lateral occipital approach.Drilling the condyle and jugular tubercle was benefit to expand the surgical space.Total removal of the turmors was achieved in 9 patients,subtotal removal in 3 patients,and without any surgical morbidity. Conclusion:Study on the microsurgical anatomy of the far lateral suboccipital approach was helpful in resecting tumors situated at lower clivus and foramen magnum.