Diagnosis and treatment of genitofemoral and ilioinguinal entrapment neuralgia.

During the past 7 years 30 patients were diagnosed as having either ilioinguinal or genitofemoral entrapment neuralgia. A multidisciplinary approach (surgeon, neurologist, and anesthesiologist), as well as local blocks of the ilioinguinal nerve and/or paravertebral blocks of L-1 and L-2 (genitofemoral nerve), were essential to determine accurately which nerve was specifically involved. Fifteen of the 17 patients (88%) diagnosed as having ilioinguinal neuralgia after previous inguinal herniorrhaphy are pain free after resection of the entrapped portion of the nerve. Thirteen patients were diagnosed as having genitofemoral neuralgia after previous inguinal herniorrhaphy, blunt abdominal trauma, or other surgery. Neurectomy of the genitofemoral nerve proximal to the entrapment controlled the persistent pain in 10 of 13 (77%) of these patients. Ilioinguinal or genitofemoral nerve entrapment neuralgias are rare complications of surgery in the inguinal region. When accurately diagnosed, neurectomy of the specific nerve is highly successful in relieving severe pain and paresthesia without significant morbidity.