Overview of Follicular Extraction

Area of Science:

• Hair Transplantation Surgery
• Dermatology
• Regenerative Medicine

Background:

• Follicular unit excision (FUE) is a primary method for hair follicle harvesting in transplantation.
• The occipital scalp is the typical donor site, but non-scalp areas like the beard and chest are also viable.
• FUE procedures result in minimal scarring at the donor site.

Purpose of the Study:

• To review the evolution and current techniques of follicular unit excision (FUE).
• To discuss advancements in FUE devices and punch types.
• To highlight the versatility of donor sites in hair transplantation.

Main Methods:

• Review of FUE devices, including manual, motorized, and advanced systems with rotation, oscillation, and vibration.
• Analysis of various punch types: dull, sharp, ultrasharp, serrated, hybrid, and specialized blades for long hair.
• Examination of extraction methods: manual versus motorized harvesting.

Main Results:

• Over two decades, FUE technology has progressed from manual to sophisticated motorized systems.
• A wide range of punch diameters (0.7–1.1 mm) and types are employed for optimal follicle harvesting.
• Both manual and motorized FUE techniques are effective for follicle extraction.

Conclusions:

• Follicular unit excision (FUE) has seen significant technological advancements in harvesting tools and techniques.
• The choice of device and punch type impacts the efficiency and outcome of FUE procedures.
• FUE offers a versatile approach to hair restoration using diverse donor sources and extraction methods.