Skip to main content

Table 2 Biomechanical values (median, (Q1, Q3)) in flexion and extension in all groups

From: Biomechanical evaluation of combined short segment fixation and augmentation of incomplete osteoporotic burst fractures

Flexion

NZ

 

EZ

 

sNZ

 

sEZ

 
 

[°]

 

[°]

 

[°]

 

[°]

 

1) Intact specimen

4.5 (2.1, 4.8)

100%

6.4 (2.7, 7.3)

100%

0.32 (0.20, 0.63)

100%

1.17 (0.89, 1.67)

100%

2) Fractured

7.0 (4.3, 7.9)

157%

7.4 (5.5, 10.4)

116%

0.14 (0.12, 0.15)

44%

1.01 (0.84, 1.15)

86%

3) Biseg. instrument.

2.7 (2.2, 3.4)

61%

5.6 (4.1, 6.7)

88%

0.53 (0.34, 0.60)

165%

0.93 (0.90, 1.13)

80%

4) HA

2.3 (1.6, 4.7)

53%

5.2 (3.4, 5.5)

82%

0.60 (0.32, 0.64)

187%

1.18 (1.08, 1.48)

101%

5) VP

5.2 (4.3, 7.2)

116%

7.0 (4.6, 8.0)

111%

0.16 (0.14, 0.28)

51%

1.10 (0.99, 1.44)

94%

Extension

NZ

 

EZ

 

sNZ

 

sEZ

 
 

[°]

 

[°]

 

[°]

 

[°]

 

1) Intact specimen

4.5 (2.1, 4.8)

100%

7.6 (2.5, 9.7)

100%

0.29 (0.22, 0.62)

100%

0.89 (0.79, 2.04)

100%

2) Fractured

7.0 (4.3, 7.9)

157%

8.9 (5.2, 9.0)

117%

0.15 (0.12, 0.19)

54%

0.95 (0.84, 1.06)

107%

3) Biseg. instrument.

2.7 (2.2, 3.4)

61%

5.3 (4.5, 6.5)

70%

0.44 (0.30, 0.62)

153%

1.12 (0.94, 1.23)

126%

4) HA

2.3 (1.6, 4.7)

53%

4.8 (3.4, 7.4)

63%

0.49 (0.34, 0.57)

170%

1.23 (1.06, 1.44)

138%

5) VP

5.2 (4.3, 7.2)

116%

9.2 (6.6, 9.9)

121%

0.16 (0.14, 0.19)

55%

0.91 (0.88, 1.10)

102%

  1. In addition, all data are also presented normalized by the intact performance (as a percentage of prefractured values).