14. Anatomical variations of cervical plexus in vietnamese adults
Main Article Content
Abstract
Understanding the anatomy of the cervical plexus is the basis for conducting applied studies in anesthesia, using skin flaps in head and neck surgery, and applying in plastic surgery in order to avoid injury to its branches which may cause postoperative loss of sensation. In this study, we describe different origins of branches from the cervical plexus. From data collected on 76 anterolateral cervical dissection specimens, we found many changes in the origin, branching and connection of the cervical plexus. The percentages of original forms of the branches of cervical plexus are as followed : the lesser occipital nerve is formed from C2: 48.68%, from C2 and C3: 26.32%, from C3: 14.47%, from loop 2: 7.89 %, from C1: 2.63%; the greater auricular nerve is formed from the combination of C2 and C3: 63.50%, from C2: 26.32%, from C3: 7.89%, from C3 and loop 3: 1.32%, from loop 1: 1.32%; The transverse cervical nerve is formed from C3: 38.16%, from C2 and C3: 30.26%, from C3 and C4: 22.37%, from C3 and loop 3: 6.58%, from loop 3: 6.58%, from loop 2: 1.32%; the supraclavicular nerve is formed from C4: 73.68%, from C3 and C4: 22.37%, from C3: 2.63%, from the loop 3: 1.32%; the phrenic nerve originates from C4: 30.14%, from C3 and C4: 23.29%, from C4 and C5: 23.29%, from C3 2.74%, from C3, C4 and C5: 20.55%. Accessory phrenic nerve, trapezius muscle branch and the branch (or branches) for sternocleidomastoid muscle were present at 5.97%, 89.47% and 51.32%, respectively. There were 5 types of ansa cervicalis.
Article Details
Keywords
Cervical plexus, anatomical variations
References
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