Document Detail

Anatomical relationship of Horner's muscle origin and posterior lacrimal crest.
MedLine Citation:
PMID:  22186989     Owner:  NLM     Status:  MEDLINE    
PURPOSE: This study was designed to examine the distance from the posterior lacrimal crest to the posterior margin of the Horner's muscle origin (the PLC-HMO distance), considering their complex anatomical relationship.
METHODS: Eight macroscopic specimens from 8 Japanese cadavers and 7 microscopic specimens from 7 Japanese cadavers, fixed in 10% buffered formalin, were analyzed. Macroscopically, the PLC-HMO distance was measured at 2 mm superior to the most posterior point of the muscle origin (Group A), directly at the most posterior point (Group B) and 2 mm inferior to the most posterior point (Group C). Microscopically, the PLC-HMO distance was measured in axial sections at 1 mm above the upper eyelid margin (Group 1), 1 mm below the lower eyelid margin (Group 2), and 3 mm below the lower eyelid margin (Group 3).
RESULTS: In the macroscopic study, the average PLC-HMO distance was 2.94, 2.57, and 2.05 mm for Groups A, B and C, respectively. The distance for Group C was significantly smaller than that of Group A (p = 0.006). In the microscopic study, the average PLC-HMO distance was 3.62, 3.74, and 3.14 mm for Groups 1, 2 and 3, respectively (no significant difference).
CONCLUSIONS: The PLC-HMO distance was approximately 2-4 mm with some specimens showing a smaller distance inferiorly.
Hirohiko Kakizaki; Akihiro Ichinose; Yasuhiro Takahashi; Hyera Kang; Hiroshi Ikeda; Takashi Nakano; Ken Asamoto; Masayoshi Iwaki
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Ophthalmic plastic and reconstructive surgery     Volume:  28     ISSN:  1537-2677     ISO Abbreviation:  Ophthal Plast Reconstr Surg     Publication Date:    2012 Jan-Feb
Date Detail:
Created Date:  2012-01-20     Completed Date:  2012-03-25     Revised Date:  2013-05-08    
Medline Journal Info:
Nlm Unique ID:  8508431     Medline TA:  Ophthal Plast Reconstr Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  66-8     Citation Subset:  IM    
Department of Ophthalmology, Aichi Medical University, Nagakute, Aichi, Japan.
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MeSH Terms
Aged, 80 and over
Asian Continental Ancestry Group
Eyelids / anatomy & histology*
Facial Muscles / anatomy & histology
Lacrimal Apparatus / anatomy & histology*
Oculomotor Muscles / anatomy & histology*

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