Schipper J, Ridder G J, Maier W, Spetzger U
Universitätsklinik für Hals-, Nasen- und Ohrenheilkunde und Poliklinik, Universitätsklinikum Freiburg.
HNO. 2004 Nov;52(11):984-7, 990-4. doi: 10.1007/s00106-003-1019-3.
The antero- or persigmoid approach preserves all functional structures of the petrous bone and, therefore, is an alternative to the classic laterobasal approaches for exploring the petroclival region. As high morbidity is assumed and it is a time consuming procedure, this approach is not well known.
Initially, a cadaver study using computer assisted surgery was used to determine the surgical workflow before we optimized our surgical procedures.
In a series of 7 patients with benign tumors growing from the petrous apex to the petroclival region, we were able to resect all tumors completely via the anterosigmoidal surgical corridor using computer assisted surgery.
The navigation-guided anterosigmoidal approach is an excellent method, allowing a good overview of the petroclival region. In patients suffering from complex petroclival tumors, it offers a real chance to achieve complete microsurgical tumor resection without functional defects by an interdisciplinary neuro-oto-surgical session.
乙状窦前或经乙状窦入路保留了岩骨的所有功能结构，因此，是探索岩斜区的经典侧颅底入路的替代方法。由于该入路被认为具有较高的发病率且手术耗时，因此并不广为人知。
最初，在优化手术操作之前，我们使用计算机辅助手术进行了尸体研究，以确定手术流程。
在一系列7例从岩尖生长至岩斜区的良性肿瘤患者中，我们能够通过计算机辅助手术，经乙状窦前手术通道完全切除所有肿瘤。
导航引导下的乙状窦前入路是一种极佳的方法，能够很好地观察岩斜区。对于患有复杂岩斜区肿瘤的患者，通过跨学科的神经耳外科手术，它提供了一个真正的机会，可实现完整的显微手术肿瘤切除且无功能缺陷。
