Kinetic energy–assisted delivery of hyaluronic acid for skin remodeling in middle and lower face

BACKGROUND: Kinetic energy of a liquid jet has been demonstrated to achieve clinical efficacy by injecting hyaluronic acid for skin thickening and improving facial sagging. A pneumatically accelerated jet penetrates the epidermis leaving HA particles spherically spread in the dermis and initiating microtraumatic wound healing. METHOD: We reported retrospective analysis of our successful experience in improving rhytidosis and skin remodeling in the middle and lower facial regions by pneumatically administered HA filler. Subjects seeking correction of facial wrinkles in middle and lower face were treated in 3 monthly sessions with computerized jet-injection device and assessed 6 months thereafter for perception of the wrinkles, rhytidosis burden, and treatment satisfaction. RESULTS: Thirty-four female patients (average age 42 years) with age-related rhytidosis in perioral, cheek, and neck areas received the treatment. The treatments had short downtime, minimal pain, and no side effects. Mean Lemperle Rating Scale score decreased in all treated areas by one full degree and was maintained for 6 months after the treatments. Patients and investigators independently scored the wrinkles as "improved" per Global Aesthetic Improvement Scale. Mean treatment satisfactory score was 4.0 +/- 1.4 (out of 5). CONCLUSION: Retrospective data showed successful implementation of liquid jet injections of HA in correction of aging middle and lower facial regions.