Close up photo of a strip excised from the hair-bearing scalp: note that scalp hairs most often grow in naturally occurring groups of 2-4 hairs we refer to as Follicular Units (FU). A minority of scalp hairs grow as single hair follicles.
(Left photo) FU obtained with Follicular Unit Extraction. Note minimal protective fatty tissue surrounding the hair bulbs (“roots”). (Right photo) FU microscopically prepared from a donor strip. Note fatty tissue has intentionally been left around the hair bulbs, leading to currently better hair survival rates than with FUE grafts.
An excerpt from an Artas robot promotional brochure. The author does not agree with the statement “appear similar to standard strip surgery grafts”. (See Figure 3b)