Intramuscular innervation patterns of the splenius capitis and splenius cervicis and their clinical implications for botulinum toxin injections.
Hyun-Jin KwonHun-Mu YangSung-Yoon WonPublished in: Clinical anatomy (New York, N.Y.) (2020)
The safest and most-effective BoNT injection sites for the splenius capitis and splenius cervicis were found at around the 50% point and the 30% to the 70% point, respectively.