Author(s): Griepentrog GJ, Lucarelli MJ. Anatomical position of hyaluronic acid gel following injection to the eyebrow. Ophthalmic Plast Reconstr Surg. 2013 Sep-Oct;29(5):364-6. doi: 10.1097/IOP.0b013e31829a72bd. PMID 23880972
PURPOSE To examine with histology the anatomical location of hyaluronic acid gel injected to the eyebrow of cadaver specimens.
METHODS The authors dissected 5 fresh hemifacial cadaver specimens following preperiosteal injection of hyaluronic acid gel to the eyebrow. Following tissue fixation, full-thickness soft-tissue sections were obtained followed by histologic examination.
RESULTS Histologic examination revealed the location of hyaluronic acid gel at the intended preperiosteal plane in all 5 specimens. Very dense retro-orbicularis oculi fat septa appeared to limit the anterior displacement of filler in each specimen.
CONCLUSIONS This study provides a greater understanding of the anatomical barriers and boundaries that help to determine, in part, the anatomical position of hyaluronic acid gel when injected to the preperiosteal eyebrow. The high degree of histologically confirmed consistency of product location of eyebrow injections noted in this study stands in contrast to the variability of position of gel injected in the infraorbital hollows.