There are certain techniques in hair replacement surgery that make it possible for hair transplant. The terms minigrafts and micrografts are used on hair transplantation. To know more about what these terms mean, can refer to the description on how the hair transplant is done.
Technically, micrografts, which consist of one or two hairs per graft, and minigrafts, which contain 3-8 hairs per graft, became part of the new tools available to the hair transplant surgeon. These smaller grafts, when properly placed, provide a more natural, less abrupt appearing hairline in contrast to the standard graft of 4.0 mm. Nordstrom demonstrated that the smaller minigrafts and micrografts are best placed into incision sites called “slits”. These are placed in horizontally in rows along the hairline in the front. His techniques changed the mechanics, appearance, and character of the procedure.
Slit techniques becomes a simpler method for placing hair grafts. Large numbers of 1- to 3-hair micrografts are placed in slit incisions without using recipient punches to remove bald scalp. The technique can be used for younger patients with thinning hair without sacrificing existing hair follicles in the recipient area. Patients with female alopecia, cicatricial alopecia, and extensive alopecia were now candidates for slit graft hair transplantation. The older concept of removing bald scalp and replacing it with hair-bearing scalp thus had changed with the addition of slit minigrafting techniques. Many transplant surgeons converted to solely minigrafting and micrografting, and the old problems with the frontal hairline and its natural refinement were solved with these techniques. Fine micrograft hairs are placed in the front line and are backed up by larger micrografts and minigrafts.
The common hair transplant patient can have the procedure completed in 2 or 3 session, typically using standard grafts. Using these techniques, even patients with thin dark hair can have natural, blended hairlines. Innovators such as Alfonso Barrerra have demonstrated that the “mega-session” approach allows the transplantation of thousands of micrografts and minigrafts during a single operative procedure. In most cases, an additional follow-up procedure, if necessary, is usually minor and brief.
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