Table 1 Characteristics of patients who developed PCM after TLIF among 953 Patients

No.

24

929

100

Age

69.41 ± 6.96

62.48 ± 12.34

61.92 ± 13.25

0.006

Sex(M/F)

8/16

306/623

35/65

1.000

 SS

1

123

15

0.057

 KS

7

96

21

 DS

13

590

45

 Revision

3

120

19

Fusion levels

2.83 ± 1.37

2.17 ± 1.39

2.43 ± 1.55

0.023

Kidney/Bullet shaped cage

36/12 (18/6)^a

842/669

90/73

0.063^b

 L1/2

1

19

4

 L2/3

4 (1)

116

16

 L3/4

13 (3)

343

42

 L4/5

22 (17)

712

71

 L5/S1

8 (3)

321

30