Ultrasound Evaluation of Hyperdiluted Calcium Hydroxylapatite Neck Laxity Treatment
Monday, April 8, 2024
9:02am – 9:09am
Location: 412
Authors: Stella Desyatnikova, The Stella Center
Calcium hydroxylapatite (CaHA) is a well-established biostimulatory filler, previously shown to stimulate collagen and elastin production. While there are histologic studies detailing the tissue response to hyperdilute CaHA, objective ultrasound imaging studies to characterize the effect of such treatment on the overlying skin are lacking. Our examined 4 patients, treated with 2 syringes of hyperdilute CaHA over 2 treatment sessions, spaced two months apart. Ultrasound imaging of the treated area following injection with CaHA was done using an L4-20 MHz linear probe, alongside clinical assessment of laxity, using the neck skin laxity improvement (NSL) scale. Ultrasound imaging permitted measurement of upper and lower dermis thickness, echogenicity, and assessment of SLEB prominence over time after treatment. This study reports on observed changes in ultrasound appearance of the skin components following treatment with hyperdilute CaHA in the neck and correlation to clinical changes.