When to change needles during neuromodulator injections-An electron-microscopy investigation into needle tip deformation.

IF 2.3 4区医学 Q2 DERMATOLOGY

Journal of Cosmetic Dermatology Pub Date : 2024-11-05 DOI:10.1111/jocd.16506

Lisa Akintilo, Jeremy B Green, Joely Kaufman, Bahar Ghane-Motlagh, David L Freytag, Konstantin Frank, Michael Alfertshofer, Sebastian Cotofana

{"title":"When to change needles during neuromodulator injections-An electron-microscopy investigation into needle tip deformation.","authors":"Lisa Akintilo, Jeremy B Green, Joely Kaufman, Bahar Ghane-Motlagh, David L Freytag, Konstantin Frank, Michael Alfertshofer, Sebastian Cotofana","doi":"10.1111/jocd.16506","DOIUrl":null,"url":null,"abstract":"Background: Neuromodulator injections are minimally invasive procedures performed across the globe. Despite their ubiquity, there is a dearth of information on whether and how needle tips used for neuromodulator procedures are deformed after repeated injections.Objective: We investigated the magnitude of needle tip deformation following sequential injection passes (3×, 5×, and 10×) during facial neuromodulator injections with three commonly used needle sizes (30G, 31G, and 32G).Methods: Neuromodulator was administered for four different aesthetic indications. Each collected needle was mounted and imaged in a Philips XL-30 Scanning electron microscope. Images were processed using ImageJ photo analysis software.Results: Forty-five needle tips were investigated. When comparing the facial regions of interest, a statistically significant difference in deformation percentage was found when injecting 10× (p = 0.044) with greatest damage after injecting the glabella (38.4%), followed by lateral canthus (27.9%), forehead (27.5%), and midface (23.1%). Independent of facial region targeted, the mean percentage of needle deformation at 3× was 14.8%, at 5× 19.6%, and at 10× 29.2% with p < 0.001. Smaller needle size corresponded to smaller percentage of damage.Conclusion: Exchanging needles after more than five injection passes will minimize needle deformation and likely increase injection precision.","PeriodicalId":15546,"journal":{"name":"Journal of Cosmetic Dermatology","volume":" ","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Cosmetic Dermatology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1111/jocd.16506","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"DERMATOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

Background: Neuromodulator injections are minimally invasive procedures performed across the globe. Despite their ubiquity, there is a dearth of information on whether and how needle tips used for neuromodulator procedures are deformed after repeated injections.

Objective: We investigated the magnitude of needle tip deformation following sequential injection passes (3×, 5×, and 10×) during facial neuromodulator injections with three commonly used needle sizes (30G, 31G, and 32G).

Methods: Neuromodulator was administered for four different aesthetic indications. Each collected needle was mounted and imaged in a Philips XL-30 Scanning electron microscope. Images were processed using ImageJ photo analysis software.

Results: Forty-five needle tips were investigated. When comparing the facial regions of interest, a statistically significant difference in deformation percentage was found when injecting 10× (p = 0.044) with greatest damage after injecting the glabella (38.4%), followed by lateral canthus (27.9%), forehead (27.5%), and midface (23.1%). Independent of facial region targeted, the mean percentage of needle deformation at 3× was 14.8%, at 5× 19.6%, and at 10× 29.2% with p < 0.001. Smaller needle size corresponded to smaller percentage of damage.

Conclusion: Exchanging needles after more than five injection passes will minimize needle deformation and likely increase injection precision.

查看原文本刊更多论文

神经调节剂注射过程中何时更换针头--针尖变形的电子显微镜研究。

背景：神经调节器注射是一种微创手术，在全球各地均有开展。尽管神经调节器注射无处不在，但有关重复注射后针尖是否变形以及如何变形的信息却十分匮乏：我们研究了使用三种常用针头规格（30G、31G 和 32G）注射面部神经调节器时，在连续注射 3 次（3×、5× 和 10×）后针尖变形的程度：方法：针对四种不同的美容适应症注射神经调节剂。在飞利浦 XL-30 扫描电子显微镜中安装并拍摄每个采集的针头。使用 ImageJ 照片分析软件对图像进行处理：结果：共调查了 45 个针尖。在对面部感兴趣的区域进行比较时，发现在注射 10× 时，变形百分比有显著的统计学差异（p = 0.044），其中注射睑板后的损伤最大（38.4%），其次是外眥（27.9%）、前额（27.5%）和面中部（23.1%）。与所针对的面部区域无关，针头变形的平均百分比在 3× 时为 14.8%，在 5× 时为 19.6%，在 10× 时为 29.2%：注射超过 5 次后更换针头可最大限度地减少针头变形，并有可能提高注射精度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Cosmetic Dermatology DERMATOLOGY-

CiteScore

4.30

自引率

13.00%

发文量

818

审稿时长

>12 weeks

期刊介绍： The Journal of Cosmetic Dermatology publishes high quality, peer-reviewed articles on all aspects of cosmetic dermatology with the aim to foster the highest standards of patient care in cosmetic dermatology. Published quarterly, the Journal of Cosmetic Dermatology facilitates continuing professional development and provides a forum for the exchange of scientific research and innovative techniques. The scope of coverage includes, but will not be limited to: healthy skin; skin maintenance; ageing skin; photodamage and photoprotection; rejuvenation; biochemistry, endocrinology and neuroimmunology of healthy skin; imaging; skin measurement; quality of life; skin types; sensitive skin; rosacea and acne; sebum; sweat; fat; phlebology; hair conservation, restoration and removal; nails and nail surgery; pigment; psychological and medicolegal issues; retinoids; cosmetic chemistry; dermopharmacy; cosmeceuticals; toiletries; striae; cellulite; cosmetic dermatological surgery; blepharoplasty; liposuction; surgical complications; botulinum; fillers, peels and dermabrasion; local and tumescent anaesthesia; electrosurgery; lasers, including laser physics, laser research and safety, vascular lasers, pigment lasers, hair removal lasers, tattoo removal lasers, resurfacing lasers, dermal remodelling lasers and laser complications.