Academy of Chiropractic Personal Injury & Primary Spine Care Program

Quickie Consult 545
Clinical Information 91 CI

From the Desk of Dr. Mark Studin
Academy of Chiropractic
Preamble: Many of the issues I bring to you are very small, yet each issue is just that, an issue. If you take care of the small issues, then you will be able to build and more importantly, focus on the bigger issues...a larger practice and more family time.

"Thecal Sac”

The thecal sac is the covering of the spinal cord and spinal nerves. It is comprised of the dural and arachnoid layers of which the arachnoid is both innervated with A-B-C pain fibers and has a vascular supply. When a disc herniates or bulges, the first structure effected is the thecal sac and independent of the cord or roots, because it is comprised of pain fibers, there can be localized pain from simply contact with the thecal sac. There can be NO radiation of pain from thecal sac involvement. 

 
The picture below shows the thecal sac denoting it as the dura. Although it is listed in some literature as the dural sac, it is universally called the thecal sac by almost 100% of radiologists and specialists who treat patients involving this structure. 



 
 
Image compliments of Medivisuals and used with permission. ©Medivisuals, Inc. All rights reserves

NOTE: You may not reproduce this copyrighted image without purchasing it directly from Medivisuals 

 
 
 
  
Image compliments of Medivisuals and used with permission. ©Medivisuals, Inc. All rights reserves


 
Respectfully,



Mark Studin DC, FASBE(C), DAAPM, DAAMLP

Adjunct Associate Professor of Chiropractic, University of Bridgeport, College of Chiropractic
Adjunct Professor, Division of Clinical Sciences, Texas Chiropractic College
Educational Presenter, Accreditation Council for Continuing Medical Education Joint Partnership with the State University of New York at Buffalo, School of Medicine and Biomedical Sciences

Academy of Chiropractic
US Chiropractic Directory
631-786-4253
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