13 citations
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August 2016 in “Journal of Cosmetic Dermatology” This study found that intradermal injection of normal saline before follicular unit extraction significantly reduced wound size and skin mass removed compared to acute extraction, suggesting it minimizes skin injury in this procedure.
10 citations
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July 2017 in “Archives of Plastic Surgery” This study found that hair diameter varies significantly within the occipital safe donor area, with thicker hair in the upper sections and thinner hair in the lower sections.
This study describes a system called FOLLYSIS©, which uses mathematics and image analysis to optimize Follicular Unit Extraction hair transplants, showing high accuracy in measuring donor area density and reducing donor site injury.
11 citations
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April 2016 in “Dermatologic Surgery” This study concluded that to accurately calculate the transection rate in follicular unit extraction, it's essential to account for both extracted and hidden transections, which differ based on surgeon expertise.
5 citations
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March 2001 in “Journal of biomechanics” This study found that anagen hairs require less force to be extracted than telogen hairs in an in vitro pig skin model, indicating different anchorage mechanisms.