L19. Femoral Triangle and Anteromedial Thigh Flashcards
Linea Aspera
Fascia Lata Description + Attachments
Fascia Lata + Compartments
Iliotibial Band:
Describe the formation of the saphenous opening and structures entering it
Femoral Triangle:
Contents of Femoral Triangle:
NAVL (lateral to medial)
Femoral Sheath, Femoral Canal + Femoral Ring
Pes Anserinus:
Arteries of Anterior Compartment of Lower Limb:
Neural Anatomy:
Adductor Canal:
Clinical Application of Femoral Artery:
The Femoral Artery is often used for arterial samples when unable to collect peripheral samples (e.g. when peripherally shut down in shock).
It is also used for cardiac and other angiography procedures when a catheter is passed up the Femoral Artery to the aorta and coronary arteries and contrast injected
Clinical Application of Cannulation of Femoral Vein:
The Femoral Vein can be used for central access as it is relatively easy to find and access
A long catheter can be inserted into the Femoral Vein as it passes through the Femoral Triangle and blood samples or pressure measurements from the right side of the heart can then be taken (via the External Iliac Vein, Common Iliac Vein and IVC).
Clinical Application of Femoral Nerve Block:
Following Hip or Femoral Fractures it is often desirable to place a nerve block rather than use large amounts of oral or intravenous analgesics.
The Femoral Nerve is easily found lateral to the Femoral Artery in the Femoral Triangle.
Pass the needle through the 2 layers of fascia to infiltrate around the nerve.
Clinical Application of Femoral Hernia:
The Femoral Ring is a weak area in the lower abdominal wall and as such is a site for hernia (usually a loop of small intestine)
Femoral Hernias are more common in women than men
If the hernia extends beyond the femoral canal through the Great Saphenous opening and into the thigh then it may be at risk of strangulation
Adductor Canal - know the surgical significances of this area
Adductor Canal Block “Blocking the function of the Adductor Canal”
The Adductor Canal Block is an interfascial plane block performed in the thigh.
It anesthesie multiple distal branches of the Femoral Nerve including the Saphenous Nerve and branches of mixed sensory and motor nerves to the Quadricep (Vastus Medialis), as well as branches of the Obturator Nerve.
It is used for Anaesthesia and/or Analgesia for surgery of the knee, medial lower leg and ankle.