PMID: 9419097Jan 7, 1998Paper

A cadaveric study of the motor nerves to the levator scapulae muscle

Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
D K FrankA L Moscatello

Abstract

Understanding the surgical anatomic relationships of the motor nerves to the levator scapulae muscle is imperative for reducing postoperative shoulder dysfunction in patients undergoing neck dissection. To elucidate this relevant anatomy, cervical (C3, C4) and brachial (C5 via dorsal scapular nerve) plexi contributions to the levator scapulae were assessed with respect to posterior triangle landmarks in 37 human cadaveric necks. An average of approximately 2 (actual 1.92) nerves from the cervical plexus (range 1 to 4 nerves) emerged from beneath the posterior border of the sternocleidomastoid muscle in a cephalad to caudad progression to enter the posterior triangle of the neck on their way to innervating the levator scapulae. These cervical plexus contributions exhibited a fairly regular relationship to the emergence of cranial nerve XI and the punctum nervosum along the posterior border of the sternocleidomastoid muscle. After emerging from the posterior border of the sternocleidomastoid to enter the posterior triangle of the neck, cervical plexus contributions to the levator scapulae traveled for a variable distance posteriorly and inferiorly, sometimes branching or coming together. Ultimately these nerves crossed the anteri...Continue Reading

References

Nov 1, 1966·American Journal of Surgery·A J Ballantyne, G A Guinn
Oct 1, 1983·American Journal of Surgery·B LeipzigM Hooper
Sep 1, 1953·The Journal of Laryngology and Otology·E BOCCA

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Citations

Jul 11, 2003·Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia·Takaomi TairaTomokatsu Hori
Mar 13, 2012·Dermatologic Surgery : Official Publication for American Society for Dermatologic Surgery [et Al.]·John T Landers, Kimberly Maino
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