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The saphenous nerve (long or internal saphenous nerve) is the largest cutaneous branch of the femoral nerve. It is derived from the lumbar plexus (L3-L4). It is a strictly sensory nerve, and has no motor function. It commences in the proximal (upper) thigh and travels along the adductor canal.
The medial crural cutaneous branches of saphenous nerve provide cutaneous innervation to the medial leg. This page was last edited on 18 December 2024 ...
The medial cutaneous nerve, before dividing, gives off a few filaments, which pierce the fascia lata, to supply the integument of the medial side of the thigh, accompanying the long saphenous vein. One of these filaments passes through the saphenous opening; a second becomes subcutaneous about the middle of the thigh; a third pierces the fascia ...
The saphenous nerve block is often done in combination with the popliteal block for surgeries below the knee. [53] The saphenous nerve is numbed at the medial part of the lower thigh under the sartorius muscle. [53] The lumbar plexus block is an advanced technique indicated for hip, anterior thigh, and knee surgery. [54]
During surgery, these neurovascular bundles, both superficial and deep, should be protected in order to prevent neurological damage. A common anatomically informed, surgical technique to avoid damaging neurovascular bundles is to undermine anteriorly to the posterior tibial margin after reaching the fascia, in order to avoid the saphenous vein ...
Venous cutdown is an emergency procedure in which the vein is exposed surgically and then a cannula is inserted into the vein under direct vision. It is used for venous access in cases of trauma, and hypovolemic shock when the use of a peripheral venous catheter is either difficult or impossible.
The infrapatellar branch of saphenous nerve is a nerve of the lower limb. [1] The saphenous nerve, located about the middle of the thigh, gives off a branch which joins the subsartorial plexus. It pierces the sartorius and fascia lata, and is distributed to the skin in front of the patella.
Femoral nerve blocks are very effective. [3] During pelvic surgery and abdominal surgery, the femoral nerve must be identified early on to protect it from iatrogenic nerve injury. [4] The femoral nerve stretch test can be performed to identify the compression of spinal nerve roots. [5] The test is positive if thigh pain increases. [5]