Lateral Circumflex Femoral Artery

- Discussion:
    - usually arises from lateral side of deep femoral artery;
    - in 15% of pts, it arises from femoral artery above profunda;
    - LFCA passes laterally in front of Psoas  & between branches of Femoral Nerve;
    - passes deep to Sartorius & rectus femoris, and divides into anteriortransverse, and descending branches;
    - ascending branch
           - passes upward beneath  Rectus Femoris & Tensor Fascia Lata;
           - it anastomoses w/ terminals of superior gluteal artery ;
    - transverse branch:
           - enters Vastus Lateralis , winds around femur below its greater trochanter, & anastomoses on back of thigh w/ MFCA,  inferior 
                  gluteal, & first perforating arteries (Cruciate Anastomosis );
    - descending branch:
           - may arise separately from femoral or profunda artery;
           - passes downward beneath the Rectus Femoris;
    - sends branches to Vastus Lateralis  & intermedius accompanied by branches of Femoral Nerve, & anastomoses w/ descending 
          genicular branch of  femoral artery and lateral superior genicular branch of popliteal artery; (see genicular arterial system)
    - it continues down fascia lata & sends multiple perforators to skin overlying fascia lata and lateral aspect of the knee;
    - lateral circumflex of femoral artery is principal source of blood to the trochanteric area & inferior part of femoral neck;
          - it anastomoses to limited degree w/ branches of medial circumflex;
    - nutrient artery  of femur sends branches to metaphysis or neck but does not contribute significantly to head

Original Text by Clifford R. Wheeless, III, MD.

Last updated by Data Trace Staff on Tuesday, December 6, 2011 1:46 pm