Nerve Block Gallery - Adductor Canal (Saphenous) Nerve Block
Caption
A 58-year-old woman presented to the ED two weeks after being bitten on her right thigh by her dog with a growing abscess over the medial thigh just superior to the knee. In order to facilitate abscess drainage, a combination of femoral nerve and adductor canal (saphenous) nerve blocks were performed. Seen here is the saphenous block. The transducer was placed over the middle third of the thigh on the medial aspect. The needle is seen approaching from lateral to medial with the femoral artery pulsating at the bottom of screen right. The adductor canal contains the saphenous nerve, the femoral artery and femoral vein. It lies just deep to the sartorius muscle, lateral to the vastus medialis and medial to the adductor longus muscle. 10 cc of 1% lidocaine without epinephrine can be seen hydrodissecting the fascial plane just deep to the sartorius muscle. The patient then underwent a pain free abscess drainage. Dr. Wesley Ng, Ultrasound Fellow, Denver Health Family Medicine Dr. Fred Milgrim, Ultrasound Fellow, Denver Health Emergency Medicine Dr. Matthew Riscinti, Ultrasound Fellowship Director, Denver Health Emergency Medicine