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Table 2 Distribution of the instrumentation angle α

From: L4/5 accessibility for extreme lateral interbody fusion (XLIF): a radiological study

(Angle in degrees)

Access from the right side

Access from the left side

Number of patients

Number of patients

α = 0

67

60

α > 0

33

40

α < 15

30

37

α > 15

3

3

Mean value (degrees) of all measured angles α

3

3.3

SD (degrees) of all measured angles α

4.7

4.9