Document Detail


Classification system for flexor digitorum accessorius longus muscle variants within the leg: Clinical correlations.
MedLine Citation:
PMID:  24535960     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The flexor digitorum accessorius longus (FDAL), a variant leg muscle, can cause tarsal tunnel syndrome. This study was performed to classify the variants of the FDAL by dissection and to correlate the dissection results with clinical cases of tarsal tunnel syndrome caused by this muscle. Eighty lower limbs of embalmed Korean cadavers were dissected. MR images of two clinical cases of tarsal tunnel syndrome caused by the FDAL were correlated with the dissection results. The FDAL was observed in nine out of 80 specimens (11.3%) and it was classified into three types depending on its site of origin and its relationship to the posterior tibial neurovascular bundle (PTNV) in the leg. In Type I (6.3%), the FDAL originated in the leg and ran superficially along the PTNV, either not crossing (Type Ia, 3.8%) or crossing (Type Ib, 2.5%) the neurovascular bundle. In Type II (6.3%), it originated in the tarsal tunnel. Most FDALs followed a similar course in the tarsal tunnel and the plantar pedis. On correlating the MR images of the clinical cases with this classification, the FDAL corresponded to Types Ia and II. All three types of FDAL can compress the tibial nerve in the tarsal tunnel or the distal leg. Clarification of the topographical relationship between this muscle and the PTNV would help to improve the results of surgery for tarsal tunnel syndrome caused by the FDAL. Clin. Anat., 2014. © 2014 Wiley Periodicals, Inc.
Authors:
Mi-Sun Hur; Hyung-Sun Won; Chang-Seok Oh; In-Hyuk Chung; Woo-Chun Lee; Young Cheol Yoon
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-2-18
Journal Detail:
Title:  Clinical anatomy (New York, N.Y.)     Volume:  -     ISSN:  1098-2353     ISO Abbreviation:  Clin Anat     Publication Date:  2014 Feb 
Date Detail:
Created Date:  2014-2-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8809128     Medline TA:  Clin Anat     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2014 Wiley Periodicals, Inc.
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