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Table 5 von Mises stress of the femoral head before and after operation under different loads

From: Evaluation of the short-term curative effect of closed reduction in the treatment of developmental dysplasia of the hip based on three-dimensional magnetic resonance imaging finite element analysis

von Mises Single-leg standing (MPa)   2-leg standing (MPa)
preoperative Postoperative t P preoperative postoperative t p
1 × body weight 1.06 ± 0.20 0.59 ± 0.11 20.149  < 0.01 0.75 ± 0.14 0.49 ± 0.09 20.032  < 0.01
2 × body weight 2.04 ± 0.38 1.13 ± 0.21 20.666  < 0.01 1.66 ± 0.31 0.97 ± 0.18 20.632  < 0.01
3 × body weight 3.02 ± 0.56 1.80 ± 0.34 20.616  < 0.01 2.41 ± 0.45 1.38 ± 0.26 20.855  < 0.01