Reading: Gross anatomical characterization of the psoas major muscle: a cadaver study

Download

A- A+
dyslexia friendly

Research Papers

Gross anatomical characterization of the psoas major muscle: a cadaver study

Authors:

I Ilayperuma ,

Senior Lecturer in Anatomy, Department of Anatomy, Faculty of Medicine, University of Ruhuna, Karapitiya, Galle, LK
X close

BG Nanayakkara

Professor in Anatomy, Department of Anatomy, Faculty of Medicine, University of Ruhuna, Karapitiya, Galle, LK
X close

Abstract

Introduction: The psoas major (PMA) is a fusiform muscle that covers the anterolateral aspects of the lumbar spine and ends in a tendon which together with the iliacus is inserted into the lesser trochanter of the femur. Racial discrepancies in the anatomy of lumbosacral region, including the psoas muscle have been documented.  
Objectives: To study the anatomical dimensions of the PMA in Sri Lankan cadavers and to compare the results with those of the white and black cadavers.  
Materials and Methods: The anatomical dimensions of the PMA were studied in a total of 34 cadavers with an age span of 54-79 years. The PMA was measured along its entire length. The width of the muscle was measured at each segmental level from L1-S1. The thickness was measured at the level of L4-L5 and anatomical cross sectional area (ACSA) was calculated.  
Results: There was a significant gender difference in the ACSA of the PMA. The mean width, thickness and ACSA of the PMA in Sri Lankan cadavers were different from those of the white and black cadavers.  
Discussion: The differences in the anatomical dimensions of the PMA in different races may have implications for hip flexor strength, spine function and incidence of low back pathology and warrants further investigation.

doi: 10.4038/gmj.v13i1.889

Galle Medical Journal Vol.13(1) 2008 22-25

How to Cite: Ilayperuma, I. & Nanayakkara, B., (2009). Gross anatomical characterization of the psoas major muscle: a cadaver study. Galle Medical Journal. 13(1), pp.22–25. DOI: http://doi.org/10.4038/gmj.v13i1.889
Published on 29 Jul 2009.
Peer Reviewed

Downloads

  • PDF (EN)

    comments powered by Disqus