Femoral Offset and its Relationship to Femoral Neck-shaft Angle and Torsion Angle

DOI : http://dx.doi.org/10.4067/S0717-95022014000400012
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Ming Han; Yongkui Zhang & Tao Shan

Summary

The aims to study the femoral offset and its relationship to femoral neck-shaft angle and torsion angle. One hundred paired (50 males and 50 females) Chinese femurs were used to measure the femoral offset, femoral neck-shaft angle and torsion angle. The data were analyzed by SPSS software. Femoral offsets were male right 44.40±4.56 mm, left 42.70±4.95 mm; female right 39.90±6.00 mm, left 38.90±6.18 mm. Femoral torsion angles were male right 6.02±10.85°, left 7.08±9.30°; female right 10.02±11.69, ° left 6.02±10.85°. Neck-shaft angles were male right 131.80±4.36°, left 134.00±4.78°; female right 132.10±5.94°, left 132.80±4.93°. There were no sexual differences in the two femoral angles (P>0.05) while there was a significant sexual difference in the femoral offset (P<0.01). The differences between left and right femoral offset and neck-shaft angle were significant (P<0.01). Clinically, our results indicate that FO could be obtained using the regression equation when the torsion angle and/or neck-shaft angle is measured.

KEY WORDS: Femoral offset; Femoral neck-shaft angle; Femoral torsion angle; Design of prosthesis.

How to cite this article

HAN, M.; ZHANG, Y. & SHAN, T. Femoral offset and its relationship to femoral neck-shaft angle and torsion angle. Int. J. Morphol., 32(4):1194-1198, 2014.