Sensory Conduction Study of the Infrapatellar Branch of the Saphenous Nerve

J Korean Assoc EMG Electrodiagn Med 2008;10(2):102-106.
Published online December 1, 2008.

Abstract

Objectives: This study was designed to evaluate the reference value of the infrapatellar branch of thesaphenous nerve (IPBSN) in Korean population in sensory conduction study.Methods: One hundred sixteen saphenous nerves and One hundred sixteen IPBSNs from sixty volunteerswere investigated. The IPBSN was stimulated medially 2 cm below the pole of the patella. The responsewas recorded with a needle electrode located close to the nerves 2 cm lateral to the femoral artery in theinguinal region.Results: Sensory nerve action potentials of IPBSN were obtained from each subjects; mean latency of thefirst positive peak of IPBSN was 7.9±1.1 ms, mean latency of the first negative peak was 8.5±1.1 ms,conduction velocity was 52±6.1 m/s and amplitude was 1.1±1.0 μv.Conclusion: This study demonstrates the electrodiagnostic technique that may be useful in the evaluationof patients with neuropathies of the IPBSN.

Key Words: Infrapatellar branch of the saphenous nerve (IPBSN), Saphenous nerve, Sensory conductionstudy