Mandelli C, Porras L, López-Sánchez C, Sicuri G M, Lomonaco I, García-Martínez V
Department of Neurosurgery, IRCCS San Raffaele, Università Vita-Salute. Milano, Italy.
Neurocirugia (Astur). 2008 Apr;19(2):133-42. doi: 10.1016/s1130-1473(08)70237-9.
The partial labyrinthectomy petrous apicectomy (PLPA) approach is a transpetrous route that provides the advantages of the labyrinthine removal but with hearing preservation. Using seven temporal bone tissue blocks and three formaldehyde-fixed cadaveric heads we have made a morphometric and comparative study on this approach that summarizes the invasiveness, the optimal surgical exposure, the anatomic complexity of the skull base approaches and, on the other hand, the spirit of preservation that is the constant aim of modern neurosurgery. The morphometric analysis is designed to make the bony phase of the PLPA approach safer and to define the relationship between petrous landmarks. The comparative study is made between the PLPA and other neurosurgical routes enhancing the potentiality of the PLPA approach that permits a wider angle of incidence towards the brainstem than with the retrosigmoid routes.
部分迷路切除术加岩尖切除术（PLPA）入路是一种经岩骨入路，具有迷路切除的优点且能保留听力。我们使用七个颞骨组织块和三个甲醛固定的尸体头部，对该入路进行了形态学和比较研究，总结了其侵袭性、最佳手术暴露、颅底入路的解剖复杂性，以及另一方面作为现代神经外科恒定目标的保留理念。形态学分析旨在使PLPA入路的骨操作阶段更安全，并确定岩骨标志之间的关系。在PLPA与其他神经外科入路之间进行了比较研究，突出了PLPA入路的潜力，该入路相对于乙状窦后入路可朝向脑干有更宽的入射角。
