Table 4: Distribution of misplaced screws with surgical requirement.

Patient

Edad

Date

Intervened segment

Level

Side

Time after

1

50

April 2009

L4-S1

L5

Left

2 m.

2

83

November 2013

L3-L5

L5

Right

7 m.

3

85

December 2013

L2-L5

L4

Left

Entry

4

49

November 2014

L4-L5

L5

Left

Entry

6

51

October 2015

L4-L5

L4

Right

Entry