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The Risk of Olfactory Disturbance from Conchal Plate Injury during Ethmoidectomy

Authors
 Kim, Kyung-Su  ;  Choi, Yoon-Seok  ;  Yoon, Joo-Heon  ;  Kim, Hyun Jun 
Citation
 AMERICAN JOURNAL OF RHINOLOGY, Vol.17(5) : 307-310, 2003 
Journal Title
AMERICAN JOURNAL OF RHINOLOGY
ISSN
 1050-6586 
Issue Date
2003
MeSH
Adult ; Cadaver ; Ethmoid Bone/innervation* ; Ethmoid Bone/surgery* ; Humans ; Olfaction Disorders/etiology* ; Olfactory Nerve Injuries* ; Otorhinolaryngologic Surgical Procedures/adverse effects* ; Postoperative Complications ; Treatment Outcome ; Turbinates/injuries*
Keywords
14599135
Abstract
BACKGROUND:
Even though the olfactory function usually is improved or unchanged after ethmoidectomy, some patients complain of olfactory disturbance, which may be caused by direct injury to the olfactory nerves. However, the detailed anatomic pathway of the olfactory nerves that leave the olfactory mucosa and after going through the cribriform plate insert into the olfactory bulb is uncertain. In the studies of lateral nasal wall, we referred to the thin bone that connects the middle, superior, and supreme turbinates to the skull base as the "conchal plate." We undertook this study to determine the anatomic relation between the conchal plate and the olfactory nerve.
METHODS:
Ten midsagittal sections from adult cadaver head specimens were used for gross anatomy and the midportion of the conchal plate was taken and fixed in 10% formalin. The microscopic structures of the conchal plate were observed after hematoxylin and eosin staining.
RESULTS:
The olfactory nerves originated from the olfactory mucosa lining the middle and superior turbinates and ran upward within the bone of the conchal plate. These results suggest that the olfactory nerve may be injured inadvertently in the conchal plate during ethmoidectomy and that this injury is likely to be one of the possible causes of olfactory disturbance.
CONCLUSION:
We propose a possibility that injury to the conchal plate can affect olfactory function. Therefore, care should be taken to avoid damage to the conchal plate during ethmoidectomy.
Full Text
http://www.ingentaconnect.com/content/ocean/ajr/2003/00000017/00000005/art00009
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Otorhinolaryngology (이비인후과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyung Su(김경수) ORCID logo https://orcid.org/0000-0003-1460-0640
Yoon, Joo Heon(윤주헌)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/113948
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