Correction to: J Orthop Surg Res

https://doi.org/10.1186/s13018-019-1468-3

In the original publication of this article [1], Chinese text of the Figs. 3, 4, 5 has not been converted to English.

Corrected figures are shown below.

Fig. 3
figure 1

Stress distribution, peak and position analysis for internal fixation (a ZNN model, b PFNA-II model)

Fig. 4
figure 2

Stress distribution, peak and position analysis for femur (a ZNN model, b PFNA-II model)

Fig. 5
figure 3

Displacement distribution, maximum amount and position of two models (a ZNN model, b PFNA-II model)