The femoral triangle is formed by the inguinal ligament superiorly, laterally by the medial border of the sartorius, and medially by the adductor longus muscle. The apex of the triangle lies between 4 and 6 inches below the inguinal ligament.
Surgical Anatomy. Arch Surg. 1995;130(6):584. doi:10.1001/archsurg.1995.01430060022004