Accessory iliacus muscle with splitting of the femoral nerve: a case report

Abstract

Introduction Variations in the iliopsoas muscle complex certainly have some clinical importance. Because these variations are usually associated with unusual femoral nerve formation, here we report a case of variation in the iliacus muscle combined with variation in the femoral nerve. Case report Variation in the iliacus muscle combined with variation in the femoral nerve was observed while performing a routine dissection of a 65-year-old male cadaver in the Department of Anatomy, SRM Medical College. The accessory iliacus muscle originated from iliac crest and inserted to the lesser trochanter of femur along with psoas major. This muscle variant was found to split the femoral nerve into medial and lateral slips. Conclusion The existence of this muscle variation along with nerve variation may increase the chances of nerve compression. Hence, detailed knowledge of these variations has immense importance in various pelvic and pelvifemoral surgeries.

THE COEXISTENCE OF ILIACUS MUSCLE VARIATION AND FEMORAL NERVE SPLIT: A CASE REPORT AND POSSIBLE CLINICAL IMPLICATIONS La coexistencia de la variación del músculo ilíaco y de la división del nervio femoral: Reporte de caso y posibles repercusiones clínic

“…In the current study, as the PLfn passes underneath the IMM, there is a potential risk of nerve compression. Any pathology of IM or IMM may disrupt the function of the femoral nerve and subsequently may result in wasting of the quadriceps and paraesthesia in the anterior and middle compartments of the thigh (Aristotle et al, 2013). Few studies (Galzio et al, 1983;Jelev et al, 2005) have reported IM hematoma and IMM abscess: assuming that could make the PLfn more vulnerable to entrapment.…”

Compresión radicular L5 extraforaminal por músculo psoas accesorio

“…Jelev y sus colaboradores 2 reportan un músculo iliopsoas accesorio entre 108 autopsias efectuadas durante 22 años. Las anomalías del psoas iliaco se localizan más frecuentemente a nivel de su inserción distal; 3 a veces, estas variaciones anatómicas pueden ser sintomáticas (como en el caso presentado), ocasionando compresión radicular de L4 y/o L5 a nivel extraforaminal 4 o afección del nervio femoral, 5 que requieren ser estudiadas como parte del diagnóstico diferencial de compresión radicular.…”