PDF(1151 KB)
Distinguish differentiation between femora neck torsion angle and femora neck anteversion in description and clinic value by eyes
ZHU Qiu-liang XU Bin
Acta Anatomica Sinica ›› 2016, Vol. 47 ›› Issue (5) : 658-662.
PDF(1151 KB)
PDF(1151 KB)
Distinguish differentiation between femora neck torsion angle and femora neck anteversion in description and clinic value by eyes
Objective To identify the difference between femora neck torsion angle (FNTA) and femora neck anteversion (FNA) in macroscopical description and to analyze its clinic value. Methods Sixty dried femurs were observed at 12, 6, 3, 4:30 and 1:30 o’clock positions in the coronal plane. The axis of the femoral neck, femoral coronal place, proximal femur coronal place and the surface which constituted the longest diameter on the section of femoral neck in the photograph were determined. The difference between FNTA and FNA was described,and analyzed. Results The position of 1:30 o’clock was the best position to observe FNTA and FNA simultaneously. FNTA was the surface which constituted the longest diameter on the section of femoral neck and the femur conoral plane, or the proximal femur conoral plane, and was seen at 12 o’clock,3 o’clock, and 1:30. The apex of the angle was backwards. The FNA was the angle between the axis of the femoral neck and the femur coronal plane, and was seen at 6,12,3, 1:30 and 4:30 o’clock. The apex of the angle was inwards. Conclusion FNTA and FNA are two completely different anatomic angle parameters of the proximal femur at the same femoral coronal place and the surface which constitutes the longest diameter on the section of femoral neck or the axis of femoral neck. The FNA determines the direction of the internal fixation screw and the femoral prosthesis, and FNTA determines the entry point of the internal fixation screw and mark the inlet of the femoral medullary cavity in prosthetic replacement.
femora neck torsion angle (Femora neck torsion angle / Femora neck anteversion / Specimen of femur / Direct observation / Human
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