Table 3

GRS score and number of screws per vertebral level.

LevelScrew PositionGRS ScoreRevisedTotal
RightLeftABCDE
C2347000007
C3336000006
C455100000010
C566120000012
C677140000014
C7336000006
T166101010012
T288151000016
T377122000014
T477102200014
T566101100012
T65580110010
T755100000010
T876111100013
T977130100014
T101515244200030
T111919341300038
T121616290120132
L11616273200032
L21919324200038
L33131553400162
L4595910972000118
L5676613110011133
S13332650000065
S2AI55100000010
Total365363670 (92%)31 (4.3%)22 (3%)4 (0.5%)1 (0.1%)3 (0.4%)728
  • Abbreviations: AI, alar-iliac; GRS, Gertzbein and Robbins scale.