Optimized Calcium Hydroxylapatite Formulation and Its Injection Technique for Hand Rejuvenation: A Retrospective Study.

INTRODUCTION

Hand rejuvenation treatment is in high demand in cosmetic medicine. Radiesse®, a commercially available formulation of calcium hydroxylapatite (CaHA), is safe, biocompatible, and provides long-lasting results.

OBJECTIVE

The study aimed to retrospectively evaluate the efficacy and safety of the presented formulation of Radiesse® and its injection procedure.

METHODS

The hands of 58 women were treated employing Radiesse® diluted with lidocaine. The treatment was performed using a blunt cannula following the proximal-to-distal fanning technique at two entry points on the dorsum of the hands. The patients received 1-4 treatments over a follow-up period of up to five years.

RESULTS

The hands of 58 females were evaluated using the Merz Hand Grading Scale (MHGS) and treated with the presented CaHA formulation. After the first treatment, 55 patients (94.8%) achieved a 1-point improvement, and 19 patients (32.8%) did not receive further treatment, being satisfied with the results. The remaining 39 women (67.2%) received 2-4 follow-up treatments. At the end of the treatment(s), 46 women (79%) achieved a final improvement of one point, and 12 women (21%) a final improvement of two points. Three minor adverse events were registered.

CONCLUSIONS

Radiesse® diluted with lidocaine is an excellent choice for hand rejuvenation. The formulation and technique proved to be safe and efficient. In our experience, a blunt cannula should be employed for optimal vein correction. The treatment was highly satisfying, although planning a second treatment during the 1-month follow-up visit is recommended to best achieve long-lasting results.