Umar Sanusi
Department of Medicine, Dermatology Division, University of California, Los Angeles, CA, USA.
Arch Dermatol. 2012 Feb;148(2):239-42. doi: 10.1001/archdermatol.2011.2196.
The large caliber of head hair in hair transplantation imparts a coarse hairline, whereas natural hairlines are typically softer. In hirsute individuals, transplantation of leg hair to the hairline may result in a superior aesthetic appearance.
A total of 1025 leg hair follicles in 1 patient were grafted to an area 0.5 to 1.0 cm in front of and 0.5 to 1.0 cm internal to the vanguard hair of the original hairline and temporal recesses; the other patient received approximately 1000 leg hairs and 600 head hairs to advance and soften his hairline and to create a custom widow's peak. Transplantation resulted in a fully grown and soft-looking hairline after 9 months in the first patient, with growth of 75% to 80% of the transplanted leg hair. The mean length of the transplanted leg hair was longer than the length of the original leg hair, with less curliness but similar hair width. Transplanted leg hair width was significantly finer compared with existing head hair width. After 4 years, results were sustained, minimizing concerns that subsequent hair loss might result from leg hair cycle variations. In the second patient, similar results were observed at 3 years.
The use of leg hair in transplantation provides additional options in patients with hairlines that need to be refined.
毛发移植中使用的头部毛发直径较大，会使发际线显得粗糙，而自然的发际线通常更柔和。在多毛症患者中，将腿部毛发移植到发际线可能会产生更好的美学效果。
1例患者的1025个腿部毛囊被移植到原发际线和颞部凹陷处先锋毛发前方0.5至1.0厘米、内侧0.5至1.0厘米的区域；另1例患者接受了约1000根腿部毛发和600根头部毛发，以改善和柔化其发际线，并打造一个定制的美人尖。在第1例患者中，9个月后移植的腿部毛发75%至80%生长，形成了完全生长且外观柔和的发际线。移植的腿部毛发平均长度比原来的腿部毛发长，卷曲度更小，但毛发宽度相似。与现有的头部毛发宽度相比，移植的腿部毛发宽度明显更细。4年后，效果得以维持，减少了对后续脱发可能由腿部毛发周期变化导致的担忧。在第2例患者中，3年后观察到了类似的结果。
在毛发移植中使用腿部毛发为需要改善发际线的患者提供了更多选择。
