Lateral endoscopic approach to epitympanic diaphragm and Prussak's space: A dissection study

Introduction: Until now, anatomic descriptions of the epitympanic diaphragm and Prussak's space have been performed using a microscope. The aim of this study is to thoroughly describe and review the epitympanic diaphragm and the anatomy of Prussak's space from an endoscopic point of view. Study design: Cadaver dissection study. Setting: Tertiary referral university center. Materials and methods: The anatomy of four temporal bones dissected using an endoscope was studied. The most important findings were noted and described. Results: Endoscopic cadaveric dissection of the middle ear allows a very good visualization of the epitympanic diaphragm, Prussak's space and middle ear anatomy in general. Conclusion: Endoscopic exploration and thorough knowledge of the complex fold anatomy may improve 'functional' interventions in middle ear inflammatory pathology during middle ear surgery, particularly in the case of selective dysventilation. © 2010 Springer-Verlag.