Ilioinguinal nerve entrapment presents with a clinical triad of pain in the iliac fossa and inguinal region, sensory abnormalities in the cutaneous distribution of the nerve and tenderness on palpation 2-3 cm medial and below the anterior superior iliac spine. The syndrome poses diagnostic difficulties, as genitofemoral nerve entrapment and non-neurological conditions of the lower abdomen may cause similar pain. We report on a patient with acute groin pain radiating towards the scrotum, caused by ilioinguinal nerve entrapment. The clinical diagnosis was strongly suggested by electromyographic examination, using the monopolar needle as a deep stimulating electrode. Subsequent nerve blockade caused complete relief of symptoms. The technique is described. Future applications for treatment of post-surgical pain are discussed.

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Keywords EMG, Ilioinguinal nerve, Nerve block, Pain
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Journal Clinical Neurology and Neurosurgery
ter Meulen, B.C, Peters, E.W, Wijsmuller, A.R, Kropman, R.F, Mosch, A, & Tavy, D. (2007). Acute scrotal pain from idiopathic ilioinguinal neuropathy: Diagnosis and treatment with EMG-guided nerve block. Clinical Neurology and Neurosurgery, 109(6), 535–537. doi:10.1016/j.clineuro.2007.03.011