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. 2021 Aug 4;9(8):e3730. doi: 10.1097/GOX.0000000000003730

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Copyright © 2021 The Authors. Published by Wolters Kluwer Health, Inc. on behalf of The American Society of Plastic Surgeons.

This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.

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Fig. 4. — Poor technique. Holding the syringe with only one unstabilized hand that can move in space has the patient feeling every little side to side needle movement until the needle site is numb. Needle depth is also not constant as it keeps moving in and out. The thumb is not ready to go on the plunger; so the patient will feel the injector move the needle as he fumbles to get his thumb on the plunger. There is no sensory noise such as pinching the skin proximal to the needle entry site in this image.