Dorsal digital septum of the distal interphalangeal joint

Slattery, David, Aland, Rachel, Durbridge, G. and Cowin, Gary (2009) Dorsal digital septum of the distal interphalangeal joint. Journal of Hand Surgery-American Volume, 34 3: 467-473. doi:10.1016/j.jhsa.2008.11.030


Author Slattery, David
Aland, Rachel
Durbridge, G.
Cowin, Gary
Title Dorsal digital septum of the distal interphalangeal joint
Journal name Journal of Hand Surgery-American Volume   Check publisher's open access policy
ISSN 0363-5023
Publication date 2009-03-01
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.jhsa.2008.11.030
Volume 34
Issue 3
Start page 467
End page 473
Total pages 7
Editor Dr Arnold-Peter C. Weiss (Editor-in-Chief)
Place of publication United States
Publisher Journal of Hand Surgery (American Volume)
Collection year 2010
Language eng
Subject 110320 Radiology and Organ Imaging
C1
920203 Diagnostic Methods
Abstract Purpose Clinical observation has led to the discovery of a distinct anatomic septum from the extensor tendon to the skin at the distal phalanx that appears to limit the proximal spread of infection from the dorsum of the distal phalanx. This study employed histology and high-resolution magnetic resonance imaging (MRI) to identify this anatomic structure at the level of the distal interphalangeal (DIP) joint. Methods We used high-resolution (16.4-T) MRI to image and section 10 cadaveric fingers (9 female, 1 male) from both left and right hands. Once imaged, we made histologic sections using hematoxylin and eosin, or Van Gieson's stain, and examined them microscopically for concordant findings. Results In all 10 scans, the proposed septum was visualized using MRI with histologic confirmation. It was observed to extend from the skin creases overlying the dorsal aspect of the DIP,joint to the extensor tendon. It is composed of collagen bundles arranged in a variable network that adhere extensor tendon to skin at the DIP joint. Conclusions Clinical observations proposed the existence of a distinct septum between extensor tendon and skin at the level of the DIP joint. We confirmed this structure to be a collagen septum by MRI and histology. This previously undescribed structure is called the dorsal septum. (J Hand Surg 2009;34A:467-473. (C) 2009 Published by Elsevier Inc. on behalf of the American Society for Surgery of the Hand.)
Keyword DIP joint
Paronychia
septum
anatomy
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Biomedical Sciences Publications
Centre for Advanced Imaging Publications
 
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Created: Wed, 02 Sep 2009, 22:21:07 EST by Cameron Harris on behalf of School of Biomedical Sciences