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OBJECTIVES In this large-scale clinical review, we investigated the safety and efficacy of Radiesse, an injectable calcium hydroxylapatite (CaHA) implant, in treatment of nasolabial folds, marionette lines, and other areas of the face.

METHODS After obtaining informed consent from the subjects, CaHA was injected in 1,000 patients (886 women and 114 men, ranging in age from 21 to 85 years) for a variety of facial aesthetic applications over a period of 52 months. Typically, CaHA was administered with a 27-gauge 1/2, or 1 1/4-inch needle.

RESULTS The nasolabial folds were the most frequently treated site, followed by the marionette lines/oral commissure. More than 80% of patients reported persistence of results at 12 months. The most frequently reported adverse events were erythema and ecchymosis. The formation of nodules was rare and was chiefly confined to the lips. Only two patients experienced nodule formation outside the lips.

CONCLUSIONS Over a period of more than 4 years, we found that CaHA performed well, with a favorable safety profile, high patient satisfaction, and good durability.