This is a prospective, randomized, masked, controlled study to investigate the effectiveness of Radiesse® Dermal Filler for hand treatment, comprised of a 3-month main study followed by an open-label extension (OLEX) study through 12 months. At 3 months, untreated controls received Radiesse Dermal Filler for hand treatment and were followed for the remainder of the study. All study subjects were eligible for retreatment 6 months after initial treatment, and all subjects were followed through 12 months from study enrollment in the OLEX.