Neurocirugia · 2026
Inframeatal intradural retrosigmoid petrosectomy (IIRP): Multicenter experience and anatomical review of an effective approach to the petroclival region.
СтатьяМногоцентровое исследованиеНазвание и аннотация: Перевод пока не подготовлен
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
González-Vargas Pedro Miguel, Thenier-Villa José Luis, Martín-Gallego Álvaro, Sanromán Álvarez Pablo, Riveiro Antonio, Martínez Rolán Rosa María, Pou Juan
Аннотация
INTRODUCTION: Tumorous and infectious lesions of the petrous bone pose a surgical challenge due to their deep location and proximity to critical neurovascular structures. Inframeatal intradural retrosigmoid petrosectomy (IIRP) is an alternative route that allows direct access to the petrous apex with minimal morbidity.
METHODS: Retrospective study of 11 patients who underwent IIRP between 2015 and 2025 in two hospitals in southern Galicia. Demographic variables, type of lesion, surgical time, degree of resection, complications, and progression-free survival were collected. A descriptive analysis and Kaplan-Meier curve were performed.
RESULTS: Eleven patients were included (7 women, 4 men; mean age 48.9 years). Lesions included invasive cholesteatoma (n=4), petroclival meningiomas (n=2), chondrosarcoma (n=1), atypical schwannoma (n=1), squamous cell carcinoma (n=1), breast cancer metastasis (n=1) and an intraosseous abscess due to Actinomyces (n=1). Gross total resection was achieved in 81.8%, with one transient complication (9.1%) and one recurrence. Progression-free survival analysis showed satisfactory recurrence-free survival up to 20 months.
CONCLUSION: IIRP is a safe, effective, and versatile technique for approaching select lesions of the petrous bone. It allows sufficient exposure with low morbidity and is also useful in refractory infectious cases.
METHODS: Retrospective study of 11 patients who underwent IIRP between 2015 and 2025 in two hospitals in southern Galicia. Demographic variables, type of lesion, surgical time, degree of resection, complications, and progression-free survival were collected. A descriptive analysis and Kaplan-Meier curve were performed.
RESULTS: Eleven patients were included (7 women, 4 men; mean age 48.9 years). Lesions included invasive cholesteatoma (n=4), petroclival meningiomas (n=2), chondrosarcoma (n=1), atypical schwannoma (n=1), squamous cell carcinoma (n=1), breast cancer metastasis (n=1) and an intraosseous abscess due to Actinomyces (n=1). Gross total resection was achieved in 81.8%, with one transient complication (9.1%) and one recurrence. Progression-free survival analysis showed satisfactory recurrence-free survival up to 20 months.
CONCLUSION: IIRP is a safe, effective, and versatile technique for approaching select lesions of the petrous bone. It allows sufficient exposure with low morbidity and is also useful in refractory infectious cases.