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Detailed Sonographic Anatomy of Dorsal Hand Augmentation With Hyaluronic Acid and Calcium Hydroxyapatite Fillers.
Aesthetic Surgery Journal 2019 September 14
BACKGROUND: Volume restoration using filler in the dorsum of the hand is a simple and effective procedure to improve wrinkles and hide veins and tendons. Currently, calcium-hydroxyapatite (CaHA) filler is the only FDA-accepted material to use in the hand dorsum. However, it is not easy to inject due to swelling and redness. In addition, hand anatomy through sonography is wrongly described in Plastic and Reconstructive Surgery® Journal. Through incorrect marking in sonographic hand anatomy, physicians will conduct erroneous procedures and surgeries.
OBJECTIVES: CaHA filler and hyaluronic acid (HA) filler were both injected into the hand to compare intra-individually the effect of each filler. Through this study, the author introduced detailed and refined sonographic anatomy. Overall, the author identified the correct injection method and depth.
METHODS: In this prospective, intra-individual, comparative study, patients were injected 1 cc of CaHA filler to the left hand and 3 cc (36 mg) of microphasic hyaluronic acid to the right. Outcomes were assessed by Merz hand grading scale, skin bio-parameters, dermascopic finding, and Global Aesthetic Improvement Scale (GAIS) with follow-up at 3, 6, 9, and 12 months.
RESULTS: The average GAIS score improved in both hands and generally maintained over the course of the study. There was significantly more bruising and swelling in the CaHA-injected hands compared with the HA-injected hands. The skin roughness and appearance improved in both sets of hands on dermascope. The average Trans-Epidermal-Water-Loss decreased and the average Stratum Corneum Hydration increased in HA-injected hands. The biopsy study showed that the HA particles lasted for 9 months.
CONCLUSIONS: The author reestablished sonographic anatomy. Veins and tendons became less apparent after injections.
OBJECTIVES: CaHA filler and hyaluronic acid (HA) filler were both injected into the hand to compare intra-individually the effect of each filler. Through this study, the author introduced detailed and refined sonographic anatomy. Overall, the author identified the correct injection method and depth.
METHODS: In this prospective, intra-individual, comparative study, patients were injected 1 cc of CaHA filler to the left hand and 3 cc (36 mg) of microphasic hyaluronic acid to the right. Outcomes were assessed by Merz hand grading scale, skin bio-parameters, dermascopic finding, and Global Aesthetic Improvement Scale (GAIS) with follow-up at 3, 6, 9, and 12 months.
RESULTS: The average GAIS score improved in both hands and generally maintained over the course of the study. There was significantly more bruising and swelling in the CaHA-injected hands compared with the HA-injected hands. The skin roughness and appearance improved in both sets of hands on dermascope. The average Trans-Epidermal-Water-Loss decreased and the average Stratum Corneum Hydration increased in HA-injected hands. The biopsy study showed that the HA particles lasted for 9 months.
CONCLUSIONS: The author reestablished sonographic anatomy. Veins and tendons became less apparent after injections.
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