What are indications for spinal accessory nerve (SAN) injury repair?

Updated: Mar 04, 2020
  • Author: Rohan R Walvekar, MD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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The indications for spinal accessory nerve repair are as follows:

  • Iatrogenic intraoperative injury or transection of the nerve (eg, radical neck dissection) [2]

  • Delayed diagnosis of intraoperative SAN injury associated with signs and symptoms of shoulder syndrome (The type of SAN repair depends on the time interval from the injury to diagnosis; see Surgical treatment.)

  • Patients with known SAN injury who do not demonstrate improvement with conservative management as evidenced by serial clinical examinations or by lack of electrical regeneration on EMG conduction studies and also exhibit a dense stable neurologic deficit [14]

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