What is the lateral slit technique, lateral Slit Technique, which was defined by Hasson & Wong, is frequently used today to provide natural looks and minimize scar tissue in hair transplantation. So how does the Lateral Slit technique enable this, let’s take a look.

What is Sagittal Grafting?

Sagittal grafting is a classical graft bed opening technique, which has been used and is still being used frequently today. This technique is  commonly used by doctors, however it can have significant disadvantages.

Namely, when using the Sagittal slit technique, there is a possibility that hair can look thinner, especially along the front line. Furthermore, the tendency of hair to lean forward is a difficult detail to control with the sagittal slit technique.

In line with all these needs, the use of the Lateral Slit Technique is rapidly gaining popularity. So what are the advantages presented by the Lateral Slit Technique and how are they manifested? Let’s see.

Lateral Slit Grafting Technique

The grooves for the grafts are not opened in the anterior-posterior linear direction, but laterally and horizontally in the lateral grafting method. This way, the opening of the graft channels allows the hair to be perceived more dense than it is.

You can think of it as different perception of your hair when you comb it in a different direction. In addition, grooves opened with Lateral slit grafting enables excellent control of hair direction. This makes it possible to transplant hair in a more natural slant.

This results in a more natural hair appearance. This is called the “Shingling Effect”. With all these advantages, it is possible to obtain a more intense visual with less hair grafts. It is a detail that increases success especially in patients with severe hair loss and a limited donor area.

When compared to the implanter pen, the method presents an advantage for multiple grafts that is not offered by the implanter.

A lateral slit is achieved if the width of the blade is maintained parallel to the front line. If the blade is kept vertical, it becomes a sagittal slit. Although it is claimed that the most natural direction can be achieved with a lateral slit, I do not agree.

If you are using a sapphire blade it does not matter whether the incision is lateral or sagittal. Thus, we can both facilitate graft implantation and experience the advantages of the lateral slit technique.