TLDR Lower hairlines using the rule of thirds can be used in hair transplants due to improved techniques.
In 2000, Dominic A. Brandy, MD, conducted a study on 20 men aged 20-46 with type III-V male pattern baldness to challenge the conventional high hairline placement in hair restoration surgery. The study measured facial proportions and found that the mean distance from the eyebrows to the hairline was 6.8 cm, which is about 33.4% of the total distance from the chin to the hairline (20.3 cm). This finding supports the use of Leonardo da Vinci's rule of thirds for ideal facial proportions. The paper argues that due to improvements in follicular unit transplantation and donor hair harvesting, surgeons can now place the hairline at the one-third facial division, rather than higher as previously necessitated by older techniques. The conclusion suggests that the face should be divided into thirds for developing the hairline in men undergoing this type of hair transplantation.
6 citations,
March 1996 in “The American Journal of Cosmetic Surgery” A new hair transplant method creates one appealing scar, uses donor hair better, and speeds up surgery.
33 citations,
January 1991 in “The Journal of Dermatologic Surgery and Oncology” Incisional slit grafting for hair transplantation gives natural-looking results and has a high success rate.
13 citations,
November 2018 in “Annals of Plastic Surgery” Nonshaven follicular unit extraction is a good hair transplant option that doesn't require shaving and can transplant up to 3000 grafts daily.
24 citations,
September 2002 in “Dermatologic Surgery” The place where hair is transplanted can affect its growth and survival rates.
5 citations,
September 2000 in “Dermatologic Surgery” Lower hairlines using the rule of thirds can be used in hair transplants due to improved techniques.
5 citations,
March 1985 in “Head & Neck Surgery” Combining scalp reduction and hair transplants improves coverage and appearance for male baldness.
8 citations,
February 1982 in “Plastic & Reconstructive Surgery” Scalp reduction can effectively treat male pattern baldness, especially when combined with hair transplants.
10 citations,
July 1981 in “Archives of Otolaryngology-head & Neck Surgery” Short scalp flaps are easier but not good for severe baldness; Juri flaps are complex but better for density and coverage.