Objectives: The present study focuses on the infratrochlear (IT) transcavernous, anteromedial (AM), and anterolateral (AL) approaches, analyzing their feasibility, indications, advantages, and limitations. Background: Understanding the working corridors used in the interdural approach to Meckel's cave is critical for the treatment of trigeminal schwannomas. Methods: Morphometric data of Meckel's cave, porus trigeminus, IT transcavernous, AM, and AL corridors were obtained from ten formalin-fixed, latex- injected cadaveric heads. Exposure areas, volumes, and opening angles of each corridor were calculated. Results: The volume of the IT transcavernous corridor was the largest, while the opening angle of the AM middle fossa triangle was the largest. Conclusions: The AM middle fossa corridor is strategic in schwannomas mainly involving Meckel's cave with a minor extension into the posterior fossa. It allows gross total resection through the opening of the porus trigeminus.
Working Corridors to Meckel’s Cave Trigeminal Schwannomas
S. Luzzi
;A. Giotta Lucifero
2023-01-01
Abstract
Objectives: The present study focuses on the infratrochlear (IT) transcavernous, anteromedial (AM), and anterolateral (AL) approaches, analyzing their feasibility, indications, advantages, and limitations. Background: Understanding the working corridors used in the interdural approach to Meckel's cave is critical for the treatment of trigeminal schwannomas. Methods: Morphometric data of Meckel's cave, porus trigeminus, IT transcavernous, AM, and AL corridors were obtained from ten formalin-fixed, latex- injected cadaveric heads. Exposure areas, volumes, and opening angles of each corridor were calculated. Results: The volume of the IT transcavernous corridor was the largest, while the opening angle of the AM middle fossa triangle was the largest. Conclusions: The AM middle fossa corridor is strategic in schwannomas mainly involving Meckel's cave with a minor extension into the posterior fossa. It allows gross total resection through the opening of the porus trigeminus.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
