A Structured Approach for Treating Calcium Hydroxylapatite Focal Accumulations

Area of Science:

• Dermatology
• Aesthetic Medicine
• Cosmetic Surgery

Background:

• Calcium hydroxylapatite (CaHA) is a common dermal filler used for soft tissue augmentation.
• Nodules are a potential complication of CaHA fillers.
• Effective management strategies are needed to address CaHA filler nodules.

Purpose of the Study:

• To review existing literature on the reversal of CaHA nodules.
• To develop a structured, tiered approach for managing CaHA filler accumulations.
• To provide guidance for clinicians on addressing nodule formation.

Main Methods:

• A literature search was conducted to identify studies on CaHA nodule reversal.
• A consensus panel developed a tiered management strategy.
• The approach is based on invasiveness, cost, and risk.

Main Results:

• Level 0: Observation for asymptomatic nodules.
• Level 1: Mechanical dispersion (massage, in situ dispersion) shows high success, cost-effectiveness, and minimal invasiveness.
• Level 2: Pharmacological (5-fluorouracil, corticosteroids), laser, and experimental treatments.
• Level 3: Calcium-chelating agents, manual removal, surgical excision as last resorts.

Conclusions:

• A structured, algorithmic approach to managing CaHA focal accumulations is presented.
• Mechanical dispersion is a highly effective and minimally invasive Level 1 treatment.
• The tiered strategy guides clinicians from conservative to more invasive options.