What is the critical point of Sudeck in the anatomy of sigmoid and cecal volvulus?

Updated: Nov 28, 2018
  • Author: Scott C Thornton, MD; Chief Editor: John Geibel, MD, DSc, MSc, AGAF  more...
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Answer

The critical point of Sudeck was previously considered to be a similar watershed area of poor blood supply at the junction of the rectum with the sigmoid colon. Because of the extensive and intramural submucosal plexus of arteries formed by the branches of the superior, middle, and inferior rectal arteries, the rectum and distal sigmoid colon are well vascularized. In contrast, the vasa recta (the end arteries in the colon wall) are not well vascularized. For this reason, the clinical implications of the critical point of Sudeck are not as important.


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