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Tissue Grafting Techniques
Published in Vineet Relhan, Vijay Kumar Garg, Sneha Ghunawat, Khushbu Mahajan, Comprehensive Textbook on Vitiligo, 2020
FUE is a safe, efficient, and inexpensive method of surgical repigmentation without requiring sophisticated equipment. Small and stable lesions on non-glaborous areas with leukotrichia can be easily and effectively treated by this method [25]. As compared to the other surgical modalities available, complications of this procedure are minimal, and the color match is excellent.
Head and neck
Published in Tor Wo Chiu, Stone’s Plastic Surgery Facts, 2018
A punch instrument is used to cut into the dermis around a follicular unit followed by extraction; strictly it requires an assessment of the dermal depth (level of the arrector pili muscle). The small puncture wounds heal by secondary intention. It takes longer to perform; some argue that this reduces viability of the hairs as they are exposed/out of the body for longer. Robots (ARTAS) have been used in hair transplantation since 2011 but are more expensive. FUE may be best suited for small areas in patients who prefer to wear their hair short; it causes ‘pit’ scarring.
Hair Transplantaion for aesthetic surgery of the scalp and body hair
Published in Pierre Bouhanna, Eric Bouhanna, The Alopecias, 2015
Pierre Bouhanna, Eric Bouhanna
Follicular unit extraction (FUE) consists of a preliminary shaving of the donor area and then raising follicular units with the use of a punch (0.7–1 mm in diameter) at the occipital and temporal donor areas.11,22,23
Artificial hair implantation for hair restoration
Published in Journal of Dermatological Treatment, 2022
Aditya K. Gupta, Maanasa Venkataraman, Emma M. Quinlan
In a regular hair transplant procedure (FUE or FUT), the patient’s own hair is implanted, thus the host recognizes the implanted tissue as ‘self’ and does not elicit an immune response. Conversely, implanted artificial hair fibers trigger cellular and tissue responses as they are seen as ‘foreign substances’ (41). The host reactions range from allergic response, inflammation (acute or chronic), foreign body reactions (FBR), and ultimately fibrous encapsulation of the implanted material (42–44). These are common reactions in response to wound healing following any surgical procedure, thus forming the basis for understanding tissue responses when biomaterials are implanted (45). The magnitude and duration of these responses may lead to the acceptance or rejection of the implanted biomaterial (45). Additionally, each fiber when implanted creates a portal in the tissue which may provide an environment for microbial infections.
Donor site of follicular unit excision hair transplantation: the relationship between appearance and actual hair density, and hair diameter
Published in Journal of Plastic Surgery and Hand Surgery, 2020
Masayuki Okochi, Toshihiko Fukushima, Hiromi Okochi, Kenichi Takita, Masamitsu Onda
The follicular unit excision (FUE) method is one of the most effective hair restoration surgeries for androgenic alopecia (AGA) because FUE results in less scarring compared to other methods [1]. Since FUE was first introduced by Rassman et al. [2], many other studies have confirmed its effectiveness [1–3]. In FUE, hair follicular units are harvested from the occipital scalp region and transferred to the recipient site. Hair density is one of the most important factors for successful FUE because the number of follicular units in the occipital region will decrease postoperatively. To perform FUE safely and successfully, the surgeon should always be concerned about donor site morbidity. The ability to estimate preoperatively how many hair follicular units can be harvested safely and how much the remaining hair volume will decrease postoperatively would improve FUE outcomes. We have addressed the need for preliminary data about hair density based on visual appearance of the donor site in AGA patients. We measured hair density and hair shaft diameter using digital photography to analyze the relationship between visual assessment of the FUE donor site and actual hair density and hair diameter measurements. We believe that this information is useful for FUE surgeons.
Safety concerns when using novel medications to treat alopecia
Published in Expert Opinion on Drug Safety, 2018
Hind M. Almohanna, Marina Perper, Antonella Tosti
Follicular unit extraction, or follicular unit excision, is a relatively new technique involving individual hair follicle and unit extraction (FUE) to avoid linear scarring resulting from strip graft harvesting [29]. Unlike FUT which may induce visible linear scarring, FUE is advertised to cause invisible microscopic scars [45]. However, this is not always the case, patients may have hypopigmented dots, and even require micropigmentation to camouflage the scars. Overall, FUE complications are generally mild, including pain at the donor site, crusting at the recipient site, subdermal cysts, and drug gastritis secondary to NSAID analgesics [46]. Hand-held motorized devices are used for the extraction of grafts and robots performing automated hair follicle extraction are now commercially available [29].