BACKGROUND: If safety is defined as the diminished ability to penetrate facial arteries, the goal of this study was to investigate whether different-sized cannulas are safer than correspondingly sized needles for the application of facial soft-tissue fillers. METHODS: Two hundred ninety-four penetration procedures of the facial and superficial temporal arteries were performed in four fresh frozen cephalic specimens using both needles (20-, 22-, 25-, and 27-gauge) and cannulas (22-, 25-, and 27-gauge). Continuously increasing force was applied and measured until intraarterial penetration occurred. RESULTS: No statistically significant differences were detected when comparing forces required to penetrate the facial arterial vasculature between different sexes, arteries, or sides of the face (all p > 0.05). Forces needed to penetrate significantly (p < 0.001) decreased with smaller diameter needles (20-gauge, 1.12 ± 0.29 N; 22-gauge, 1.08 ± 0.25 N; 25-gauge, 0.69 ± 0.24 N; and 27-gauge, 0.70 ± 0.29 N) and in cannulas (22-gauge, 1.50 ± 0.31 N; 25-gauge, 1.04 ± 0.36 N; and 27-gauge, 0.78 ± 0.35 N). Comparing 27-gauge injectors, no statistically significant difference was detected between needles and cannulas; an artery could be penetrated with a similar force independent of whether the injector was a needle or a cannula (0.70 ± 0.29 N versus 0.78 ± 0.35 N; p = 0.558). CONCLUSIONS: Cannulas, in all measured sizes except 27-gauge, required greater forces for intraarterial penetration compared with correspondingly sized needles, confirming the safety of 22- and 25-gauge cannulas; 27-gauge cannulas, however, required similar forces as 27-gauge needles, indicating that 27-gauge cannulas are not safer than 27-gauge needles. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, V.
BACKGROUND: If safety is defined as the diminished ability to penetrate facial arteries, the goal of this study was to investigate whether different-sized cannulas are safer than correspondingly sized needles for the application of facial soft-tissue fillers. METHODS: Two hundred ninety-four penetration procedures of the facial and superficial temporal arteries were performed in four fresh frozen cephalic specimens using both needles (20-, 22-, 25-, and 27-gauge) and cannulas (22-, 25-, and 27-gauge). Continuously increasing force was applied and measured until intraarterial penetration occurred. RESULTS: No statistically significant differences were detected when comparing forces required to penetrate the facial arterial vasculature between different sexes, arteries, or sides of the face (all p > 0.05). Forces needed to penetrate significantly (p < 0.001) decreased with smaller diameter needles (20-gauge, 1.12 ± 0.29 N; 22-gauge, 1.08 ± 0.25 N; 25-gauge, 0.69 ± 0.24 N; and 27-gauge, 0.70 ± 0.29 N) and in cannulas (22-gauge, 1.50 ± 0.31 N; 25-gauge, 1.04 ± 0.36 N; and 27-gauge, 0.78 ± 0.35 N). Comparing 27-gauge injectors, no statistically significant difference was detected between needles and cannulas; an artery could be penetrated with a similar force independent of whether the injector was a needle or a cannula (0.70 ± 0.29 N versus 0.78 ± 0.35 N; p = 0.558). CONCLUSIONS: Cannulas, in all measured sizes except 27-gauge, required greater forces for intraarterial penetration compared with correspondingly sized needles, confirming the safety of 22- and 25-gauge cannulas; 27-gauge cannulas, however, required similar forces as 27-gauge needles, indicating that 27-gauge cannulas are not safer than 27-gauge needles. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, V.
Authors: Greg J Goodman; Mark R Magnusson; Peter Callan; Stefania Roberts; Sarah Hart; Cara B McDonald; Michael Clague; Alice Rudd; Philip S Bekhor; Steven Liew; Michael Molton; Katy Wallace; Niamh Corduff; Sean Arendse; Shobhan Manoharan; Ava Shamban; Izolda Heydenrych; Ashish C Bhatia; Peter Peng; Tatjana Pavicic; Krishan Mohan Kapoor; David E Kosenko Journal: Aesthet Surg J Date: 2020-08-14 Impact factor: 4.283
Authors: Jani van Loghem; Sonja Sattler; Gabriela Casabona; Sebastian Cotofana; Sabrina Guillen Fabi; Kate Goldie; Uliana Gout; Martina Kerscher; Ting Song Lim; Carla de Sanctis Pecora; Gerhard Sattler; Ada Trindade de Almeida; Rungsima Wanitphakdeedecha; Philip Werschler; Tatjana Pavicic Journal: Clin Cosmet Investig Dermatol Date: 2021-09-08
Authors: Jani van Loghem; David Funt; Tatjana Pavicic; Kate Goldie; Yana Yutskovskaya; Sabrina Fabi; Pieter Siebenga; Job Thuis; Joseph Hkeik; Jonathan Kadouch; Welf Prager; Nabila Azib; Gabriela Casabona; Steve Dayan; Shino Bay Aguilera; Philippe Snozzi; Peerooz Saeed Journal: J Cosmet Dermatol Date: 2020-03-17 Impact factor: 2.696
Authors: Greg J Goodman; Mark R Magnusson; Peter Callan; Stefania Roberts; Sarah Hart; Frank Lin; Eqram Rahman; Cara B McDonald; Steven Liew; Cath Porter; Niamh Corduff; Michael Clague Journal: Aesthet Surg J Date: 2022-01-01 Impact factor: 4.283