Does Anatomical Variation trigger Idiopathic Meralgia Paresthetica? A High-Resolution Ultrasound Case-Control Study

Purpose: Anatomic and clinical studies have demonstrated a variable course of the lateral femoral cutaneous nerve (LFCN). As High-Resolution Ultrasound (HRUS) is able to reliably depict the course of the LFCN, it was the aim of the present study to retrospectively assess the anatomical course and compression site of the LFCN using HRUS in patients suffering from idiopathic MP, and compare the anatomical course in these patients to the an asymptomatic control group. Methods: Twenty-eight patients with a diagnosis of MP were included (20 male, eight female; mean age 54 years) in this study. The diagnosis was estab…