Abstract
The trapezius is innervated by the accessory nerve. The accessory nerve transverses the neck in the superficial location, which makes it vulnerable to injury. The scapula is connected to the trunk only through the clavicle so that its stability on the thorax depends mainly on the parascapular muscles, especially the trapezius. When trapezius paralysis occurs, it is difficult to maintain the position of the scapula and it shifts downward and laterally (Fig. 13.1).
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References
Bigliani LU, et al. Transfer of the levator scapulae, rhomboid major, and rhomboid minor for paralysis of the trapezius. J Bone Jt Surg Am. 1996;78(10):1534–40.
Bigliani LU, Perez-Sanz JR, Wolfe IN. Treatment of trapezius paralysis. J Bone Jt Surg Am. 1985;67(6):871–7.
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Itoi, E. (2023). Trapezius Paralysis. In: Shoulderology. Springer, Singapore. https://doi.org/10.1007/978-981-99-0345-0_13
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DOI: https://doi.org/10.1007/978-981-99-0345-0_13
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