While topical anesthesia may be an option, most patients can comfortably undergo this injection without it. Before proceeding with the injection, instruct the patient to frown their brow, allowing you to assess the size, strength, and location of both the procerus and corrugator muscles.
Given that the corrugator muscles insert laterally into the skin, you can use the dimpling of the skin as a visual guide to determine the extent of these muscles. The typical dosage ranges will be addressed during your practical training. However, it’s important to remember that individual patient responses may vary. Some may achieve satisfactory results with as little as 10 units, while others, particularly male patients, might require higher doses. Injections should be precisely placed 1 cm above the superior orbital rim to minimise the risk of upper eyelid ptosis. The injection should target the muscle belly. During the procedure, take care not to “bump” the periosteum, as this action can occasionally lead to post-injection headaches.
The administration of neurotoxin injections for glabellar frown lines demands not only technical expertise but also a deep appreciation for facial anatomy and patient variability. By mastering this technique, you will enhance patient satisfaction while ensuring their safety and well-being throughout the process. Always remember to stay attuned to individual patient needs and adapt your approach accordingly, ultimately achieving the best possible outcomes in the art of cosmetic rejuvenation.
