Abstract
BackgroundLesions infiltrating the petrous temporal bone are some of the most complex to treat surgically. Many approaches have been developed in order to address these lesions, including endoscopic endonasal, anterior petrosectomy, posterior petrosectomy, and retrosigmoid.MethodWe describe in a stepwise fashion the surgical steps of the retrosigmoid intradural inframeatal petrosectomy.ConclusionThe retrosigmoid intradural inframeatal petrosectomy may afford satisfactory exposure with limited drilling and minimal disruption of perilesional anatomical structures. It can provide excellent surgical results, especially for soft tumors, while minimizing surgical morbidity.
Highlights
Lesions infiltrating the petrous temporal bone are certainly among the most difficult to treat in neurosurgery
Multiple approaches have been developed in order to access the petroclival space, and which approach is chosen should be assessed on a case-by-case basis [6, 8]. Each of these approaches, such as the endoscopic endonasal [2, 10], subtemporal [3], or anterior or combined petrous [5, 7] routes comes with certain built-in surgical comorbidities that must be accepted and explained to the patient [1]
We present a case of a grade II chondrosarcoma of the petrous bone (Fig. 1) operated (TRM) via the retrosigmoid intradural inframeatal
Summary
The retrosigmoid intradural inframeatal petrosectomy may afford satisfactory exposure with limited drilling and minimal disruption of perilesional anatomical structures. It can provide excellent surgical results, especially for soft tumors, while minimizing surgical morbidity.
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