The Anterior Ethmoidal “Genu”: A Newly Appreciated Anatomic Landmark for Endoscopic Sinus Surgery

2019 ◽  
Vol 32 (4) ◽  
pp. 534-540 ◽  
Author(s):  
William E. Bolger ◽  
Heinz Stammberger ◽  
Masaru Ishii ◽  
Jens Ponikau ◽  
Meiyappan Solaiyappan ◽  
...  
2019 ◽  
Vol 129 (5) ◽  
pp. 441-447
Author(s):  
William E. Bolger ◽  
Masaru Ishii ◽  
Meiyappan Solaiyappan ◽  
S. James Zinreich

Introduction: Ethmoid sinus anatomy is so variable it has been referred to as a “labyrinth.” Accordingly, this provides a challenge for surgeons performing ethmoidectomy. Identifying consistent anatomic features or landmarks within the ethmoid sinus can aid surgeons performing sinus surgery. The goal of this investigation was to determine if subtle anatomic features are consistently present within the retrobullar recess and could potentially serve as a reliable landmark for surgeons performing ethmoid surgery. Materials and Methods: Ethmoid sinus anatomy was studied in 60 sinonasal complexes through several methods including gross anatomic dissection, endoscopic dissection and 3-D CT stereoscopic imaging. Results: Review of gross sagittal sinonasal specimens revealed that the retrobullar recess was present in all specimens and a tissue bridge was noted emanating from the basal lamella deep within the retrobullar recess in 23/24 gross sagittal specimens; in 1/24 specimens it was quite small or difficult to appreciate. In the radiographic analysis, the tissue bridge was noted in 17/18, in 1/18 it was not appreciated. In the endoscopic dissections it was noted in 17/18, in 1/18 it was small or not appreciated. Conclusion: The small tissue bridge, or ponticulus within the retrobulbar recess was seen in nearly all ethmoid sinuses studied leading us to venture that could be used in surgery to orient surgical dissection through the basal lamella into the posterior ethmoid region.


Skull Base ◽  
2005 ◽  
Vol 15 (S 2) ◽  
Author(s):  
Mark Jorissen ◽  
S. Bogaerts ◽  
V. Poorten

Author(s):  
Hyun Pyo Hong ◽  
Sung Won Yoon ◽  
Min Joon Park ◽  
Soo-Chan Jung

Author(s):  
Wasam A Albusalih

Endoscopic sinus surgery is one of the fastest technique for treatment of sinonasal diseases which includes acute and chronic infection and resection of benign and malignant tumour; soon it extend for management of more deep area and deal with lesions in the pterygopalatine and infratemporal fossae then extended for management of skull base tumor which include pituitary gland tumor clival tumor and skull base defect leading to csf rhinorrea and its complications…in this lecture i cited the success which achieved in Diwanyia teaching hospital in this growing branch of medicine and illustrate some of my procedures pre and postoperatively with brief discussion for each.Endoscopic sinus surgery and its extended applications now play a major role in management of sinonasal And Skull base diseases with minimum complications and short hospital stay without the need for external devastating approach.


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