Compared to the FUE method, during the DHI method, both the incisions and graft implantations are performed simultaneously, which means that both are combnined as a part of one or two-step process. Extracted follicular units are being implanted directly into the receiving area using a specialized Choi Pen, implantation tool that stores the exctracted grafts, to then release them directly into the receiving area, without creating canal incisions in it.
DHI Hair Transplant
Steps of the DHI method
Step 1
The DHI procedure is performed with a use of a Choi implanter pen, firstly the suregon extracts individual follicles from the donor area and transfers them into the pen.
Step 2
The Graft is gently inserted into the hollow needle, which is located at the tip of the implanter pen and is then given back to the surgeon.
Step 3
The needle is then inserted into the scalp at a 40-45 degree angle, both the incision and the implantation are executed simultaneously, all performed with the perviously mentioned Choi pen.
Step 4
Typically, 2 to 6 Choi implanters and about 15-16 needles are used during the procedure. The device comes in a variety of needle sizes to best match the size of the hair follicles.
Of course, the Choi method has its advantages just as well as disadvantages compared to the FUE technique.
DHI method has it’s advantages:
- the time during which the taken grafts remain outside the body is shortened, which ensures stronger and healthier adaptation of the placed grafts.
- it’s more precise and accurate, it also results in higher density.
- the survival rates of the hair follicles stay at an appropriately high level.
- bleeding at the time of the formation of the recipient area is grately reduced.
- trauma caused by transfering the grafts is lowered, which leads to less damage to the blood supply in the implanted area
- regeneration after the procedure is way faster than with any other method, patients return to their normal activities almost right away.
- shaving the recipient area is not a requirement, which is exactly why this type of a procedure is usually recommended to female patients.
It also has it’s disadvantages:
- the procedure takes longer to complete when compared to the FUE method.
- it’s more expensive compared to other hair transplant methods.
- it requires more attention and accuracy from the performing personel.
- the number of required follicles is usually lower than that of the FUE technique, in order to maintain the follicles in optimal conditions until their implantation.
- it’s a better choice for specific and targeted areas rather than covering large areas.