The frontalis muscle is innervated by the facial nerve and receives blood from the supratrochlear arteries.
2.
The pedicle is based on the supratrochlear vessels and can be 1.2 cm wide.
3.
Vascularisation of the scalp and forehead is supplied by the supraorbital, supratrochlear, superficial temporal, postauricular and occiptal vessels.
4.
The perfusion of the paramedian forehead flap comes from three sources : randomly, through the frontalis muscle and through the supratrochlear artery.
5.
Important landmarks are the hairline, frown lines, location of the supratrochlear vessels, ouline of the defect, nasal and lip subunits.
6.
However, the vertical paramedian forehead flap based on the ipsilateral or contralateral supratrochlear vessels has become standard, because it has a low turning point, making it easy to reach the defect without using hair-bearing scalp.
7.
These foss?are separated from one another by a thin, transparent lamina of bone, which is sometimes perforated by a supratrochlear foramen; they are lined in the fresh state by the synovial membrane of the elbow-joint, and their margins afford attachment to the anterior and posterior ligaments of this articulation.
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