Osteological and Radiological Study of Femoral Bicondylar Angle among Nepalese Population
October - December 2017 | Vol 3 | Issue 4 | Page : 121-126
Chandan Sintakala1, Prabina Manandhar2, Ajya Sah3
1 Department of Anatomy;3Department of Pharmacology, Nepal
Medical College and Teaching Hospital, Nepal, Kathmandu.2Department of
Anatomy, Kathmandu University School of Medical Science, Nepal, Kavre.
How to cite this article: Sintakala C, Manandhar P, Sah A. Osteological
and Radiological Study of Femoral Bicondylar Angle among Nepalese Population. Int
Arch BioMed Clin Res. 2017;3(4):121-126.
Introduction: The femoral bicondylar angle of femur is an angle between the axis
of shaft of the femur and a line perpendicular to the infracondylar plane. The bicondylar
angle was studied from earliest known bipedal human ancestors: australopithecines
from about 4.2 million years ago. The bicondylar angle of the femur of australopithecines
is often used as a marker of bipedality and is therefore an indicator of human lineage.
Objectives: The main objective was to study the femoral bicondylar angle by osteological
and radiological method as to show their relation between different measured parameters
as well as the angle under respective method. Methods: A total sample of 200 (100
dried femurs-for osteological method and 100 radiological films-for radiological
method) from Medical colleges of Nepal were included in this study. Femoral bicondylar
angle was measured by using osteometric board, goniometer, vernier caliper and accessories.
Collected data were analyzed statistically and presented in the form of tables and
graph. The mean of femoral bicondylar angle was calculated and correlated with other
parameters using the Pearson’s correlation. Result: The mean value of femoral bicondylar
angle obtained were 9.31?±2.13 and 9.37?±2.25 for right and left femurs respectively
by the osteological method. The mean value calculated from radiological method were
8.96?±2.24 for right and 9.40?±2.44 for left in males whereas in females 8.70?±2.48
for right and 9.31?±2.58 for left. Apart from the average value and standard deviation,
the mean angle correlation with height and side, showed statistically insignificant
(P>0.005). Conclusion: The finding of the study showed the femoral bicondylar angle
was greater in left femur than right in osteological method whereas it was greater
in both right and left femur of male when compared to female as per radiological
method. Overall, the bicondylar angle was found to be greater in left femur than
right. Thus, obtained observation of the bicondylar angle could be useful in forensic
discipline to ascertain the age and sex of the dried femur in controversial situation.
Keywords: Anthropometry, osteometry, radiology, osteology, femoral bicondylar
angle, sexual dimorphism and bipedalism.
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