Endoscopic endonasal approach to the maxillary strut: anatomical review and case series.
نویسندگان
چکیده
OBJECTIVES/HYPOTHESIS The maxillary strut is the bone that separates the foramen rotundum and superior orbital fissure. Tumors involving the lateral wall of the sphenoid sinus, posterior ethmoid, or posterior maxillary sinus may invade this region. The authors detail the anatomy of the strut and present a case series that emphasizes the importance and utility of this useful landmark during an endoscopic endonasal approach to lesions in this region. STUDY DESIGN Cadaveric dissections and retrospective case series. METHODS Endoscopic endonasal dissections were performed on six formalin-fixed cadaver heads. Morphometric analyses of 100 skulls were conducted using CT scans and BrainLab. Four patients underwent procedures that exposed the maxillary strut. RESULTS The maxillary strut was trapezoidal shaped with an average cross-sectional area of 15.25 ± 0.48 mm(2) and average thickness of 4.43 ± 0.10 mm. The maxillary strut was present bilaterally in all skulls examined. Anteroposterior length averaged 4.18 ± 0.15 mm on the right and 3.90 ± 0.14 mm on the left. Our patient series illustrated the clinical utility of the maxillary strut as a landmark during endoscopic approaches to the skull base. CONCLUSIONS An endoscopic endonasal approach can be used to expose the maxillary strut. Improved understanding of this anatomy is important to achieving success when using this approach for the biopsy or resection of lesions in the lateral sellar compartment, pterygopalatine fossa, and aspects of the middle cranial fossa.
منابع مشابه
Endoscopic Endonasal Transsphenoidal Approach for Pituitary Adenomas: a Prospective Review of Our Early Experience
Background & Aim: Pituitary adenomas are a part of a dissimilar group of benign neoplasms. The development of endoscopic techniques for surgery of paranasal sinuses has increased the opportunity for an endoscopic approach with regard to the pituitary gland. Minimally invasive endoscopic pituitary surgery, in turn, permits a more thorough tumor resection and fewer associated surgical complicatio...
متن کاملبررسی اندوسکوپیک آناتومی حفره پتریگوپالاتین در اجساد بالغ ایرانی
Background : Our aim in this study was to recognize the endoscopic anatomy of the Pterygopalatine fossa (PPF) and the anatomic variations of the related neurovascular structures, to define the endoscopic endonasal approach to this region. Methods: In a case series study 17 fresh adult cadavers were studied by endoscopic endonasal approach. To reach the pterygopalatine fossa endonasally, we ...
متن کاملAnatomical Study on Meckel Cave with Endoscopic Endonasal, Endo-Maxillary Sinus, and Endo-Pterygoid Process Approaches
OBJECTIVE To study anatomical structures related to Meckel cave with endonasal endoscopic approach and to provide an anatomical basis for endoscopic surgery in Meckel cave. METHODS Meckel cave of 5 adult skulls (10 sides) were fixed with 10% formalin. The anatomical structures of Meckel cave and the related zones adjacent to Meckel cave were observed and measured with endoscopic endonasal app...
متن کاملEndoscopic Endonasal Surgery for Sinus Fungus Balls: Clinical, Radiological, Histopathological, and Microbiological Analysis of 40 Cases and Review of the Literature
Introduction: Paranasal sinus fungus ball (PSFB) is a non-invasive mycosis, which appears in immunocompetent patients, along with unilateral lesion. The purpose of this study was to analyse various symptoms of PSFB and its radiological, pathological, and microbiological findings. In addition, this study involved the investigation of the incidence of bacterial coinfection and surgical techniques...
متن کاملPterional versus Endoscopic Endonasal Transsphenoidal Surgery for Resection of Tuberculum Sellae Meningioma: Comparative Assessment of Opthalmological and Surgical Outcomes
Objective A Comparatively study of effectiveness and safety of traditional pterional surgery (TPS) and endoscopic endonasal trans-sphenoidal suirgery (EETS) for resection of Tuberculum sellae meningioma using visual and gross total resection as outcome measures. Methods A PUBMED and MEDLINE (2002-2014) search were performed to identify the series for tuberculum sellae meningioma (TSM) resected...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Laryngoscope
دوره 124 8 شماره
صفحات -
تاریخ انتشار 2014