How Ignoring Hair Transplant Depth Control Leads to Graft Injuries, Poor Survival, and Poor Baldness Coverage
In Follicular Unit Extraction, surgeons use tiny punches in the range of 0.6-1.2mm. These punches score around individual follicular unit grafts. Scored grafts are then harvested transplantation. This requires a considerable amount of skill and practice to extract healthy grafts while preventing injuries. Advancing the punch too far can damage the follicular unit. Such injuries can hurt the hair growing processes, leading to poor survival and poor baldness coverage after the grafts are implanted into the recipient areas of the scalp. Therefore, it is absolutely necessary to consider hair transplant depth control for better coverage.
Lack of Proper Depth Control Results in Hair Transplant Graft Impaction and Graft Transection
The basic concept of an FUE punch is to simply cut around the follicular unit. But an awareness of how deep the device should go is essential for avoiding graft injuries. Techniques that do not compensate for punch depth dynamics would carry a higher risk of graft damage. This, in turn, translates to the inability to achieve better coverage.
Graft injuries from hair transplant punches may occur when proper depth is not taken into account. These are the typical scenarios that result:
Impacted Grafts in the Punch Lumen
Impaction occurs when grafts become stuck inside the punch. During the scoring of the hair follicle, the top part ascends into the interior lumen of a conventional FUE punch. Impaction will likely occur. One form of injury that may arise is when the upper part of the graft gets stuck inside the punch and the lower part remains out of the punch. As the punch continues to advance down the length of the follicle, it may crush and transect the lower portion of the un-ascended hair graft.
Mechanisms in hair transplant depth control for better coverage prevent the punch from advancing too far, thus avoiding these types of issues.
Linear Scar Free Hair Transplant Graft Transection of Splayed Hair Follicles
Groups of 2 more follicles wrapped in a fatty tissue sheath are naturally occurring follicular units. In the lower section, the tail bulb ends fan out and away from each other. When applying a conventional FUE punch in this context there is a high risk of transecting the splayed ends.
Upon rotation, these general extraction instruments will exert cutting vectors that may point straight down. When the punch end is beveled, the cutting vector may point or inward towards the follicular unit. With the case of multiple follicles in a follicular unit, the punch is likely to cut the splayed ends when it descends too far down.
Mechanisms in hair transplant depth control for better coverage prevent the punch from advancing too deep, thus avoiding these types of issues. Contraptions used to sleeve punches become functional once the practitioners determines sweet spot depth. The sleeve is then placed to prevent the punch from going past the depth it defines.
Not only is depth control necessary for extractions involving splayed hair follicles, but additionally, there is also a dire need for a much safer punch design that produces cutting vectors which point away from the graft unit, instead of towards it. The patented Dr.UPunch flare is an indispensable feature which makes this type of outward rotational cut possible. The flared, curved configuration, directs the sharp edge away from the graft. This minimizes the chance of follicular graft transection as the punch is pushed further into the skin.