Slit Grafting Research Articles

REINVIGORATION OF MATURE CASTANEA SATIVA BY SERIAL MICROGRAFTING ONTO A JUVENILE CLONE

In vitro micrografting of mature chestnut (Castanea sativa Mill.) onto a juvenile clone was carried out in order to estimate wether in vitro reinvigoration takes place. In vitro cultured shoot tips of two selected mature clones were micrografted onto in vitro rooted shoots of juvenile origin using the slit grafting method. When the growing scion reached about 4 cm it was cut in two segments which were subcultured to obtain a stock for evaluation. By repeating this procedure, stocks of one-' two- and three-times micrografted microshoots were obtained. Multiplication and rooting rates of micrografted material were evaluated and compared to those of control and the juvenile clone used as rootstock. The graft-take was in the range 64-78%. Multiplication rate of 1-' 2- and 3-times micrografted material was higher than that of ungrafted one all along 8-12 subcultures for one of the adult clones. There were no significant differences between multiplication rates of 1-' 2- and 3-times micrografted shoots. On the other hand, micrografting did not improve in vitro rooting.

Rationale for Using a Combination of Follicular Units and Slit Grafts in Hair Transplanting

THE TWO MOST COMPELLING REASONS for exclusively using follicular units (FU) in hair transplanting are the extreme naturalness that this approach can accomplish and the simplicity of using a single type of graft for all transplanting. The latter is particularly important for novices and relative novices in hair transplanting for it is obviously much more complicated to learn when and where to use what kind of grafts, when many different types are being used. Unfortunately, for most practitioners, two counterbalancing problems have been associated with exclusive FU transplanting (FUT). The first was lower hair densities than could be accomplished with a mixture of grafts. The second was the result of less tissue insulation of follicles in FU than in larger “minigrafts,” leading to more exposure of the hair follicles to potentially lethal damage during preparation, storage and insertion, which in turn produced lower hair yields. Both of these problems can be addressed through expert and highly controlled technique. Over the past several years, the hair densities that can be produced with FUT have increased dramatically but, as will be shown in this paper, are unlikely to match those that can be produced with a combination of FU and slit grafts. Hair yield, at least in some offices, have similarly improved. The technique however, is not “user friendly.” A major drawback of FUT is that many technicians are usually required to prepare a sufficient number of FU to produce good hair density. In addition, placing the FU close enough together to produce good hair density without killing follicles requires great skill and patience. Good quality control of so many individuals becomes, in many situations, an impossible task. Even in offices where very fine FUT is carried out, one cannot help but believe there will always be tired, bored or upset technicians, as well as technicians-in-training, doing less than optimal work and therefore, lethally injuring FU. The larger the staff, the more such individuals will be present. Each of the potential problems of density and decreased hair yield will be discussed separately below.

Linear Grafting Using a Modified Slot Method: Introducing the Linear Punch

Seeking the overall goal of patient satisfaction, hair transplant surgeons have attempted to combine naturalness with density. This article presents a study of 250 hair transplant patients. In the study, linear slots are compared to other methods of creating hair transplant receptor sites. Punch grafts, micrografts, and linear grafts are compared on six parameters: healing time, time to growth, visibility after 3 weeks, hairline naturalness, hair density, and patient satisfaction. The results indicate that linear grafting using a modified slot method creates a natural swirl of hair more effectively than traditional methods. Two thousand to four thousand hairs can be transplanted in approximately 2–3 hours and healing is quick. Linear grafting avoids both the usual compression and tufting of slits associated with slit grafts and the vascularity problems associated with incisions created with lasers.

Too Late for the Laser?

Proponents of the CO laser argue that it has two main advantages: firstly an improved cosmetic result in both slit grafting (due to reduced compression of hairs in the grafts), and round minigrafting and secondly, being able to work in a comparatively bloodless field. Balanced against this are the

Saç Ekiminde Kullanılan Yeni Bir Greft Sayma Ve Nemli Ortamda Saklama Kabı

A New Hair Graft Canister For Graft-Counting And Preserving in Damp Medium Micrografts. slit grafts and mini grafts are used in hair transplantation. After preparing them, grafts are preserved in a damp medium until transplantation. It is necessary to know the number of the grafts because as many recipient areas (holes) as the grafts are to be prepared. In this study, a new model of the hair graft canister is introduced.

Linear grafting using a modified slot method. Introducing the linear punch.

As the field of hair transplantation changes radically almost month to month, one goal remains essentially unchanged-satisfy the patient. Mega sessions of only one to three hair grafts either by slit or laser produce a natural but thin result, while the more traditional circular punch grafting can produce a thicker but unnatural result. To introduce a new type of recipient site that has the width of a micro graft but can vary in length. When linear grafts are placed into these new recipient sites, they produce strips of hairs that heal quickly and naturally. When using the multiblade knife for donor strip harvesting, the shape of grafts change from the traditional round grafts to a narrow linear strip of hair. Current methods of slit receptor sites accommodate these grafts better than circular punch sites when grafts with a small numbers of hairs are used. Unfortunately, with either larger slit grafts or later densification, slit grafts often tend to compress creating a pitted or tufted appearance. It is the authors' opinion that by creating a slot incision and removing some tissue, a more dense, natural appearance can be created for the patient obviating the problems with slits, lasers, or circular punch grafting. One-year study on 100 hair transplant patients. The linear punch creates recipient sites that avoid compression and allows for more hairs per graft without compromising naturalness. Healing is comparable to micrografts alone. It is the authors' opinion that a linear or elongated slot incision accommodates grafts created from donor strip harvesting more naturally than slits, small round incisions or punctures. The linear graft created is the precise size and shape to the recipient slot incision to which it is placed. This technique helps us avoid the old adage, "Trying to fit a square peg into a round hole." As stated by Unger, a slot incision created by a Ultrapulse laser produces superior results to those seen with conventional slit grafting (Dermatol Surg 1995;21:759-65). This approach is cost efficient and cosmetically appealing to the patient without the fear of the old "cornrow" appearance.

Thoughts on the Extensive Micrografting Technique In Hair Transplantation

Our practice is now completing its ninth year of using micromini-grafting as the approach to hair transplantation. The practice for the preceding 18 years had consisted of standard plug and, later, slit grafting methods. Based on the combined experience of these 27 years in hair transplantation, I

Nontufted incisional slit grafting.

The nontufted incisional slit grafting method described here is a decisively modified technique in the field of hair transplantation. Traditional techniques of incisional slit grafting have the risk to produce a tufted look due to compression from the sides when the grafts are placed in the incision. Our specific method of dissection of the donor hair creates very small flat grafts that are the same shape as the recipient sites and includes trimming the epidermis and a part of the dermis. The advantage of this technique is that there is no compression on the grafts and thus it results in a diminished tufted look. With this technique it is possible to transplant more than 2000 grafts in one session, meaning that patients with extreme baldness and a relatively small fringe of hair can become hairy in an aesthetically pleasing way due to the extremely economic redistribution of the donor hair.

RE: Slit Grafting: The Use of Serrated Island Grafts in Male and Female‐Pattern Alopecia. J Dermatol Surg Oncol 1991;17:243–53

The Journal of Dermatologic Surgery and OncologyVolume 17, Issue 8 p. 690-690 RE: Slit Grafting: The Use of Serrated Island Grafts in Male and Female-Pattern Alopecia. J Dermatol Surg Oncol 1991;17:243–53 IVAN S. COHEN MD, IVAN S. COHEN MD Fairfield, ConnecticutSearch for more papers by this author IVAN S. COHEN MD, IVAN S. COHEN MD Fairfield, ConnecticutSearch for more papers by this author First published: August 1991 https://doi.org/10.1111/j.1524-4725.1991.tb01329.xRead the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume17, Issue8August 1991Pages 690-690 RelatedInformation

Hair Transplantation in Advanced Male Pattern Alopecia: The Role of Incisional Slit Grafting

The technique of incisional slit grafting is described and discussed. The results of the use of this technique for hair transplantation in patients with Norwood Type VII or advanced alopecia are reported.

Slit Grafting: The Use of Serrated Island Grafts in Male and Female‐Pattern Alopecia

Successful aesthetic treatment of earlier thinning of scalp hair in men and women has necessitated the development of alternatives to traditional punch grafting. The hair-bearing "serrated island" remaining between two parallel rows of round donor sites can be removed and dissected to yield a large number of "serrated island grafts" and single-hair grafts. These miniature grafts, along with half grafts from bisected plugs, can be placed, in one or several sessions, into dozens to hundreds of small "slits" between the remaining hairs in patients with early or advanced thinning on the crown, vertex, or anterior scalp--hence the name "slit grafting." The versatility of this technique is demonstrated by its value for patients with dark hair and light skin, in repair work, in patients necessitating extensive vertex coverage, or in combination with alopecia reduction and traditional punch grafting. The finely tufted progressive growth from hundreds of these carefully placed slit grafts can thus counteract further hair loss in a variety of different situations.

Incisional Slit Grafting

Incisional slit grafting, a new and greatly improved technique in hair transplantation, is described. Incisional slit grafting utilizes larger numbers of smaller grafts than does traditional punch grafting. No tissue is removed from the recipient bed. The vascular supply is conserved, resulting in an increased graft yield. The clumping and stalking effect associated with traditional round grafting is eliminated largely, and a more natural frontal hairline is achieved.