Skip to main content

Table 4 The radiographic outcomes in the MI-PLIF and open PLIF groups

From: Comparison of percutaneous endoscopic and open posterior lumbar interbody fusion for the treatment of single-segmental lumbar degenerative diseases

  

PE-PLIF

Open PLIF

P

LLA (°)

Preoperation

33.30 ± 11.45

36.73 ± 6.29

0.156

 

Postoperation

37.93 ± 7.13*

39.90 ± 5.11*

0.225

SLA (°)

Preoperation

14.17 ± 5.60

15.70 ± 3.83

0.228

 

Postoperation

17.10 ± 4.55*

17.90 ± 3.33*

0.445

DH (mm)

Preoperation

9.21 ± 2.15

9.07 ± 1.72

0.771

 

Postoperation

11.73 ± 1.27*

11.76 ± 1.33*

0.149

 

Last follow-up

10.75 ± 1.18*

10.82 ± 0.98*

0.813

CSAC

Preoperation

0.92 ± 0.23

0.95 ± 0.23

0.638

 

Last follow-up

1.70 ± 0.28*

1.66 ± 0.26*

0.556

Fusion rate (%)

 

93.3

96.7

1.000**

 

Definite fusion

28

29

 
 

Probable fusion

2

1

 
 

Nonunion

0

0

 

Cage subsidence

 

2

5

0.228**

  1. *, P < 0.05 compared to the preoperative data. **, results from fisher’s exact test. LLA Lumbar lordotic angle. SLA Segmental lordotic angle. DH, Disc height. CSAC Cross-sectional area of the spinal canal