Introduction
The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with the tibia and kneecap forming the knee joint. By most measures the femur is the strongest bone in the body. The femur is also the longest bone in the body.Using the AP view of the hip, angle formed by axis of femoral shaft and line drawn along axis of femoral neck passing through center of head of femur. At birth, the femoral neck shaft angle is 140degrees. In adult, the femoral neck shaft angle is 120-135degrees. We analysed the Femoral Neck Shaft Angle in 50 dry human femur bones.
Material and Methods
A total of 50 dry femur bones of unknown sex were used for this study. The bones were obtained from the Department of Anatomy, Saveetha Dental College and Hospitals. Two points of axis were noted on the femur, one median vertical line (Shaft Axis) and one horizontal line perpendicular to it (Neck Axis) and then the NSA angle was …show more content…
Toogood PA studied FNA among dry bone using digital method among American population and observed FNA to be 129.20˚ which is higher than the present study which may be due to racial variations among the two different populations. The FNA is very high in neonatal age and then gradually it decreases during development and reaches adult values [15]. The present study, the mean FNA of dry femur was observed on left side of femur to be 124˚ and on right side 122˚ wherein these values correlated with Amith R and P.F.Umebese [16,17,18]. The femoral neck-shaft angle is of utmost clinical significance for orthopedecians and trauma surgeons [19]. Also, the examined cohort was retrospectively analyzed and the reference values are only valid in a similar cohort of ethnic background and age [20]. Thus, reference parameters should be generated for other groups as