INJURY to the femoral nerve proximal to the inguinal ligament is not common. Repair of abdominal severance of this important structure is apparently rare. One of us (F. B. C.)1 reported two such cases in 1956. An additional case was recorded by Chiasserini2 a year later. A review of the few published cases and the histories of 3 additional patients observed recently suggests that these remedial lesions may be of some general interest.
The femoral (or anterior crural) nerve, arising as it does from the anterior divisions of the 2nd, 3rd, and 4th lumbar nerves, is a mixed nerve that courses lateral to the iliac vessels from its origin deep to the psoas muscle mass. It remains a single trunk for a short distance over the iliacus muscle to pass behind the inguinal ligament lateral to the femoral artery. Muscular branches supply the iliacus, psoas, pectineus, sartorius,
Wentworth A, Bell HS, Clare FB. Repair of the Femoral Nerve After Intra-Abdominal Severance. JAMA. 1961;176(5):447-449. doi:10.1001/jama.1961.63040180007016a