Welcome to International Journal of Anatomy and Research

Type of Article: Original Research

Year: 2016 | Volume 4 | Issue 1 | Page No. 2007-2014

Date of Publication: 29-02-2016

DOI: http://dx.doi.org/10.16965/ijar.2016.131

MORPHOLOGY OF LUMBAR PLEXUS AND ITS CLINICAL SIGNIFICANCE

Deepti Arora *¹, Shyam Sunder Trehan ², Subhash Kaushal ³, Usha Chhabra ⁴.

^*1 Assistant Professor, Department of Anatomy, MMIMSR, Mullana, Ambala, Haryana, India.
² Assistant Professor, Department of Surgical oncology, MMIMSR, Mullana, Ambala, Haryana, India.
³ Professor and former Head of Department, Department of Anatomy, GMC, Patiala, Punjab, India.
⁴ Professor and former Head of Department , Department of Anatomy, GMC Patiala, Punjab, India.

Address: Dr. Deepti Arora, Assistant Professor, Department of Anatomy, MMIMSR, Mullana, Ambala, Haryana, India, contact no.08059931294
E-Mail: dr.deeptiarora@gmail.com

Abstract

Background and Objectives: Looking to the applied significance of lumbar plexus in the form of its involvement in various injuries and entrapment, it is imperative to have a thorough knowledge about its formation, branching pattern and variations.
Materials and Methods: The study was performed on 30 formalin embalmed cadavers in the department of anatomy, Government Medical College, Patiala. The muscles of the posterior abdominal wall were exposed. The fibers of psoas major muscle were dissected from the transverse processes of lumbar vertebrae and the nerves of lumbar plexus were exposed.
Results: The variable origin of iliohypogastric nerve was found in 8.33% cases. It was not found in 8 specimens. Ilioinguinal nerve was not seen in 14.97% cases. Variations in morphological origin of genitofemoral nerve were seen in 13.36% cases and in case of femoral nerve , variations were in 43.32% cases. Lateral femoral cutaneous nerve was seen arising from femoral nerve in  8.33% cases and was not found in 16.67% cases. Psoas minor muscle was found unilaterally in 1 cadaver  on the right side and bilaterally in 2 cadavers.
Conclusion: Knowledge of the anatomy of the lumbar plexus is essential for the surgeon who wishes to perform a surgical intervention to this plexus.
Key words:   Lumbar Plexus, Psoas Major, Ilioinguinal Nerve, Iliohypogastric Nerve, Femoral Nerve, Obturator Nerve, Lateral Femoral Cutaneous Nerve, Genitofemoral Nerve.

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Deepti Arora, Shyam Sunder Trehan, Subhash Kaushal, Usha Chhabra. MORPHOLOGY OF LUMBAR PLEXUS AND ITS CLINICAL SIGNIFICANCE. Int J Anat Res 2016;4(1):2007-2014. DOI: 10.16965/ijar.2016.131