Peroneal nerve: Normal anatomy and pathologic findings on routine MRI of the knee

• DOI: 10.1007/s13244-013-0255-7
• Publication Date: 2013-05-24T06:45:09Z
• Authors: F. R. A. Van den ...; F. M. Vanhoenacker; E. De Smet; W. Huysse; K. L. Verstraete
• Keywords: Magnetic resonance neurography; Common peroneal nerve; Superficial peroneal nerve; Popliteal fossa; Epineurium

Peroneal nerve lesions are not common and often exclusively assessed clinically electromyographically. On a routine MR examination without dedicated MR-neurography sequences the peroneal can readily be assessed. Axial T1-weighted especially helpful as they allow good differentiation between surrounding fat. The purpose of this article is to review normal anatomy pathologic conditions around knee. In first part variable knee will emphasized, followed by discussion clinical findings neuropathy general signs denervation. Six anatomical features may predispose neuropathy: paucity epineural tissue, biceps femoris tunnel, bifurcation level, superficial course fibula, fibular tunnel finally additional branches. second we discuss different conditions: accidental surgical trauma, intraneural extraneural compressive lesions. • contribute vulnerability muscle denervation within anterior compartment important secondary for evaluation nerve. most traumatic or compressive. Intraneural ganglia originate from proximal tibiofibular joint. images best sequence visualise on MRI.