Electrodiagnostic Features of Peroneal Neuropathy Associated with Weight Loss and Leg Posture.

Objective: Weight loss and leg postures are common conditions associated with peroneal neuropathy at the fibular head (PNFH). This study aimed to find the electrodiagnostic features of PNFH associated with weight loss and those of PNFH associated with leg postures such as crossing legs or squatting. Methods: Patients with clinical and electrodiagnostic characteristics that were compatible with PNFH associated with weight loss and leg postures were included in this retrospective cohort study. The patients were divided into three groups: Patients with PNFH associated only with leg postures, patients with PNFH associated only with weight loss, and patients with PNFH associated with both leg postures and weight loss. Results: Twelve patients with PNFH related to leg postures, five patients with PNFH related to weight loss, and four patients with PNFH related to both leg postures and weight loss were included in the study. Although these three groups had similar electrodiagnostic characteristics, the degree of motor conduction block obtained by recording from the tibialis anterior muscle was higher in patients with PNFH associated only with leg postures than in patients of other groups (p=0.017). Conclusion: The electrodiagnostic features of PNFH associated with weight loss and leg postures are generally similar. PNFH associated with weight loss may not only depend on leg posture; factors such as metabolic changes may also play a role in its pathophysiology. [ABSTRACT FROM AUTHOR]