Document Detail

The fibrocartilaginous sesamoid: a cause of size and signal variation in the normal distal posterior tibial tendon.
MedLine Citation:
PMID:  14531012     Owner:  NLM     Status:  MEDLINE    
The aim of this study was to investigate the presence of fibrocartilage within the distal posterior tibial tendon (PTT) before its division correlating with size and signal variation on MR images through a radio-anatomic and pathologic study. Eight fresh cadaveric feet underwent MR imaging were cut into 4-mm slices in the axial plane. The PTT specimens were harvested at the tendon distal portion before its division and sent to pathology. Thirty-three asymptomatic subjects underwent axial double-echo turbo-spin-echo MR imaging. Proximal and distal PTT signal and diameter were evaluated. In cadavers, every PTT flared distally. Intratendinous fibrocartilage and ossified sesamoid were found in, respectively, 87.5 and 12.5% of the cases. Distal PTT flaring was demonstrated in 100% of the asymptomatic subjects (mean diameter 8 mm). An intratendinous high signal intensity on proton-density-weighted images and sesamoid bone were evidenced in, respectively, 36 and 33% of the cases. Proximally, PTT presented a 4-mm mean diameter and was hypointense in 100% of the cases. Only one accessory navicular bone was detected. Laterally off-centered increased intratendinous signal intensity as well as PTT distal widening with otherwise normal MR imaging features are related to an intratendinous fibrocartilage.
E M Delfaut; X Demondion; A Bieganski; H Cotten; H Mestdagh; A Cotten
Publication Detail:
Type:  Journal Article     Date:  2003-10-03
Journal Detail:
Title:  European radiology     Volume:  13     ISSN:  0938-7994     ISO Abbreviation:  Eur Radiol     Publication Date:  2003 Dec 
Date Detail:
Created Date:  2003-11-21     Completed Date:  2004-04-30     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9114774     Medline TA:  Eur Radiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  2642-9     Citation Subset:  IM    
Department of Skeletal Radiology, Roger Salengro Hospital, CHRU of Lille, Bd du Professeur Jules Leclercq, 59037 Lille, France.
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MeSH Terms
Ankle Joint / anatomy & histology*
Cartilage, Articular / anatomy & histology
Magnetic Resonance Imaging
Middle Aged
Sesamoid Bones / anatomy & histology
Tendons / anatomy & histology*
Tibia / anatomy & histology
Comment In:
Eur Radiol. 2005 Feb;15(2):397-8; author reply 399   [PMID:  15449003 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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