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