Hair transplant for hair Loss Restoration procedure
At an initial consultation, the surgeon analyzes the patient's scalp, discusses his preferences and expectations, and advises him/her on the best approach (e.g. single vs. multiple sessions) and what results might reasonably be expected.
For several days prior to surgery the patient refrains from using any medicines which might result in intraoperative bleeding and resultant poor "take" of the grafts. Alcohol and smoking can contribute to poor graft survival. Post operative antibiotics are commonly prescribed to prevent wound or graft infections.
SurgeryTransplant operations are performed on an outpatient basis, with mild sedation (optional) and injected local anesthesia, which typically last about six hours. The scalp is shampooed and then treated with an antibacterial agent prior to the donor scalp being harvested.
In the usual follicular unit procedure, the surgeon harvests a strip of skin from the posterior scalp, in an area of good hair growth. The excised strip is about 1–1.5 x 15–30 cm in size. While closing the resulting wound, assistants begin to dissect individual follicular unit grafts from the strip. Working with binocular Stereo-microscopes, they carefully remove excess fibrous and fatty tissue while trying to avoid damage to the follicular cells that will be used for grafting. The latest method of closure is called 'Trichophytic closure' which results in much finer scars at the donor area.
FUE harvesting negates the need for large areas of scalp tissue to be harvested and can give very natural results with little or no scarring.
The surgeon then uses very small micro blades or fine needles to puncture the sites for receiving the grafts, placing them in a predetermined density and pattern, and angling the wounds in a consistent fashion to promote a realistic hair pattern. The technicians generally do the final part of the procedure, inserting the individual grafts in place.
Post-operative careAdvances in wound care allow for semi-permeable dressings, which allow seepage of blood and tissue fluid, to be applied and changed at least daily. The vulnerable recipient area must be shielded from the sun, and shampooing is started two days after the surgery. Some surgeons will have the patient shampoo the day after surgery. Shampooing is important to prevent scabs from occurring around the hair shaft. Scabs adhere to the hair shaft and increase the risk of losing newly transplanted hair follicles during the first 7 to 10 days post-op.
During the first ten days, virtually all of the transplanted hairs, inevitably traumatized by their relocation, will fall out ("shock loss"). After two to three months new hair will begin to grow from the moved follicles. The patient's hair will grow normally, and continue to thicken through the next six to nine months. Any subsequent hair loss is likely to be only from untreated areas. Some patients elect to use medications to retard such loss, while others plan a subsequent transplant procedure to deal with this eventuality.
Modern techniquesThere are several different techniques available for the harvesting of hair follicles, each with their own advantages and disadvantages. Regardless of which donor harvesting technique is employed, proper extraction of the hair follicle is paramount to ensure the viability of the transplanted hair and avoid transection, the cutting of the hair shaft from the hair follicle. Hair follicles grow at a slight angle to the skin's surface, which means that regardless of technique transplant tissue must be removed with a corresponding angle and not perpendicular to the surface.
There are two main ways in which donor grafts are extracted today: strip excision harvesting and follicular unit extraction.
Strip harvesting is the most common technique for removing hair and follicles from a donor site, most commonly the area at the back and sides of the scalp. A single-, double-, or triple-bladed scalpel is used to remove strips of hair-bearing tissue from the donor site. Each incision is planned so that intact hair follicles are removed. Once removed, the strip is dissected into follicular units, which are small, naturally formed groupings of hair follicles.
Follicular Unit Extraction (FUE) takes place in a single long session or multiple small sessions. FUE is considered to be more time consuming, depending on the operator's skill, and there are restrictions on patient candidacy. The advantages of this technique over the conventional strip harvest are that it does not leave a linear scar, and the procedure produces little or no postoperative pain and discomfort. There are some disadvantages such as increased surgical times and higher cost to the patient. Clients are selected for FUE based on a fox test. There is however some debate about the usefulness of this in screening clients for FUE.