How is the Eden-Lange procedure performed for the treatment of spinal accessory nerve (SAN) injury?

Updated: Mar 04, 2020
  • Author: Rohan R Walvekar, MD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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The principles of the procedure are as follows:

  • The scapula is stabilized using the levator scapulae and rhomboid muscles, which consequently reinforce the action of the denervated trapezius.

  • The levator scapulae and rhomboid muscles normally insert medially on the scapula. These insertion points are surgically transferred to more lateral scapular targets. [58] As a result, when these muscles contract, the traction stabilizes the scapula, particularly during abduction and anterior flexion of the shoulder (see the image below).

    Spinal accessory nerve (SAN) traversing a bifurcat Spinal accessory nerve (SAN) traversing a bifurcated internal jugular vein (IJV). (* = carotid artery, yellow arrow = SAN)

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