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Table 4 Maximum von Mises stress on the root of the pedicle screw

From: Treatment of thoracolumbar burst fractures by short-segment pedicle screw fixation using a combination of two additional pedicle screws and vertebroplasty at the level of the fracture: a finite element analysis

Loading mode S-L S-I S-L-C S-I-C
Flexion 30.9 MPa 24.7 MPa 25.9 MPa 23.5 MPa
Extension 31.7 MPa 25.7 MPa 26.1 MPa 24.6 MPa
Left bending 200.7 MPa 141.8 MPa 156.5 MPa 128.6 MPa
Right bending 202.3 MPa 144.3 MPa 258.4 MPa 103.2 MPa
Left rotation 261.9 MPa 192.9 MPa 200.4 MPa 162.3 MPa
Right rotation 265.3 MPa 191.2 MPa 201.6 MPa 162.3 MPa