Abstract
BACKGROUND: Calcium hydroxylapatite (CaHa) is one of many newly available soft tissue fillers. OBJECTIVE: We have, in this pilot study, evaluated the clinical, histologic and electron microscopic ultrastructural changes seen with CaHa at 1 and 6 months after skin injection. METHODS: Each of the three subjects was injected in the postauricular area with 0.1 cc of CaHa gel. A 3-mm punch tissue biopsy was taken at 1 and 6 months post-injection. Biopsies were analyzed by histopathology and electron microscopy. Clinical results after injection of the nasolabial folds were also evaluated. RESULTS: CaHa particles were found to persist at 6 months with evidence of new collagen formation being seen. Patients still showed clinical improvement at this time. CONCLUSION: This study is the first in vivo ultrastructural analysis of the biologic response to CaHa in human skin. CaHa shows clinical, histologic and electron microscopic evidence of persistence at 6 months.
| Original language | English |
|---|---|
| Pages (from-to) | 223-226 |
| Number of pages | 4 |
| Journal | Journal of Cosmetic and Laser Therapy |
| Volume | 6 |
| Issue number | 4 |
| DOIs | |
| State | Published - Dec 2004 |
Keywords
- Calcium hydroxylapatite
- Dermal filler