How common is the mid-forehead lift? in figure 1(photos)

A Mid forehead lift is not a procedure used commonly today.  Modern advances in endoscopic surgery have allowed the forehead to be lifted through small incisions hidden behind the hairline.  The Mid forehead lift incisions have the potential to leave visible scars.  

The Mid forehead lift is not a commonly used technique.  The typical candidate is one who has very deep lines in a very heavily aged forehead.  The problem with the mid forehead lift is that it leaves a scar in the middle of the forehead.  This is generally undesirable.  There are many more modern, less visible options such as an endoscopic forehead lift, a hairline incision forehead lift, a temporal brow lift, and a coronal incision lift. 

While it works well to lift the brow, very few people want to have the scar that you get with this surgery.  I did a few early in my career, but stopped because I didn't like the scar.  The ONLY patients I would consider this for is someone who has no brow hair (so can't do direct brow) and very deep forehead lines already.  For that patient, you can create a scar that should look like one of the deep forehead lines.  But even then it may be noticeable.  Explore every other option first.