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Fig. 1

A cadaveric adult femur that is marked with lead wires. To verify clearly through an image intensifier, the femur was marked with easily flexible lead wires on (1) the circumference of the femoral neck, (2) the cervico-trochanteric junction, and (3) the most protruded portions of anterior and posterior surfaces of the trochanter passing the tip of the greater trochanter.

Fig. 2

Image synthesis process on the anteroposterior (AP) plane with the image editing program. (A) An AP image of the femur, (B) an AP image of proximal femoral nail antirotation-II (PFNA-II®), (C) synthesized images of the femur and the cephalomedullary nail on the ideal position, (D) drew a line bisecting the proximal part of PFNA-II®, (E) checked the ideal entry point (*) of the nail on the femur, and removed the image of the nail, (F) measured the distance (d) between the ideal entry point (*) and the tip of the greater trochanter (**).

Fig. 3

Image synthesis process on the lateral plane with an image editing program. (A) A lateral image of the femur, (B) synthesized images of the femur and cephalomedullary nail on the ideal position, and drew a line bisecting the proximal part of proximal femoral nail antirotation-II (PFNA-II®), (C) measured the width of the femoral neck and the distance between a posterior cortex of the femoral neck and the center of nail, (D) measured the width of the trochanter and the distance between a posterior cortex of the trochanter and the center of nail.

Fig. 4

Ideal entry point (*) was at the extended line of the cervicotrochanteric junction.

Figure & Data

REFERENCES

Citations

Citations to this article as recorded by  

• Clinical Research through Computational Anatomy and Virtual Fixation
  Ju Yeong Kim, Dong-Geun Kang, Gu-Hee Jung
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  Journal of Southeast Asian Orthopaedics.2022;[Epub]     CrossRef