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Indian Journal of Clinical Anatomy and Physiology


A digital image analysis method for measuring femoral neck shaft angle and anteversion angle: A pilot study


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Author Details: Lakshmi Verma, Sumit Gupta, Tuhin Ghulyani, Pratima Jaiswal

Volume : 3

Issue : 3

Online ISSN : 2394-2126

Print ISSN : 2394-2118

Article First Page : 362

Article End Page : 369


Abstract

Femur is widely studied in the fields of orthopedics, anthropology, forensic and human kinematics. This study aims to measure neck-shaft angle (NSA) and anteversion angle (FNA) in adult dry femora using digital image analysis software ‘ImageJ’. A total of 100 (50 right and 50 left) intact human adult femora were studied. The data was analyzed using SPSS software. The mean NSA and FNA in femora (n=100) was 124.95±6.09 & 13.45±8.58 respectively. The mean NSA in left and right femora was 125.12±5.22 & 124.78±6.9 respectively. The mean FNA in left and right femora was 12.9±8.22 & 14±8.98 respectively. There was no significant side difference in both NSA and FNA. The mean NSA was lower than most of the western studies but it was comparable with most other Indian studies and also Japanese studies. Though the mean FNA was within the range of previous Indian studies but is higher than most other observations. We attribute these numerical differences to different morphometric techniques and measuring points.

Keyword:
Femur, Neck Shaft Angle, Anteversion Angle