All surgical manipulations of the endolymphatic sac have a common requirement: to identify the intradural part. We studied the position of the intradural endolymphatic sac in relation to the posterior semicircular canal, the sigmoid sinus, the retrofacial air cell tract, and the jugular bulb in 50 temporal bones. The intradural sac was identifiable in 48 cases; in two the sac either was absent or would not have been identifiable surgically without jeopardizing other important structures, particularly the posterior semicircular canal.
Get full access to this article
View all access options for this article.
References
1.
PortmannG: Vertigo: Surgical treatment by opening the saccus endolymphaticus. Arch Otolaryngol6:309–319, 1927.
2.
HouseWF: Subarachnoid shunt for drainage of endolymphatic hydrops: A preliminary report. Laryngoscope72:713–729, 1962.
3.
ClemisJDShambaughGEJr: Preliminary experiences with operations on the endolymphatic sac. Laryngoscope76:1029–1041, 1966.
4.
ArenbergIKRask-AndersenHWilbrandHStahleJ: The surgical anatomy of the endolymphatic sac. Arch Otolaryngol103:1–11, 1977.
5.
AnsonBJDonaldsonJAWarpehaRLWinchTR: Surgical anatomy of the endolymphatic sac and perilymphatic duct. Laryngoscope74:480–497, 1964.
6.
SheaDACholeRAPaparellaMM: The endolymphatic sac: Anatomical considerations. Laryngoscope89:88–94, 1979.
7.
ArenbergIK: The fine points of valve implant surgery for hydrops: An update. Am J Otol3:359–374, 1982.
8.
EgamiTSandoIBlackFO: Hypoplasia of the vestibular aqueduct and endolymphatic sac in endolymphatic hydrops. Otolaryngology86:ORL 327–339, 1978.
9.
KodamaASandoI: Postnatal development of the vestibular aqueduct and endolymphatic sac: Dimensional anatomy of the vestibular aqueduct and the endolymphatic sac (rugose portion) in human temporal bones: Statistical analysis of 79 bones. Ann Otol Rhinol Laryngol [Suppl]91:(suppl 96): 1–20, 1982.
10.
SchuknechtHF: Pathology of the ear. Cambridge, Mass, 1974, Harvard University Press.
