Skip to main content

Table 2 Radiographic analysis between migrated cages in the PCM and control groups

From: Cage positioning as a risk factor for posterior cage migration following transforaminal lumbar interbody fusion – an analysis of 953 cases

 

PCM group (n = 24)

Control group (n = 163)

P-value

Cage position

 Depth ratio

−0.119 ± 0.063

0.52 ± 0.107

< 0.001

 Coronal ratio

−0.080 ± 0.062

− 0.103 ± 0.089

0.359

Preoperative disc radiographic parameter

 DH (mm)

11.43 ± 2.03

9.34 ± 2.54

< 0.001

 ROM (°)

8.40 ± 5.38

6.38 ± 4.87

0.063

 Translation (mm)

3.34 ± 2.45

2.11 ± 2.25

0.014

 Slippage (%)

10.60 ± 10.54

7.32 ± 9.79

0.130

Cage size & geometry

 Cage height (mm)

11.17 ± 0.97

10.91 ± 1.15

0.302

 Height variancea (mm)

−0.26 ± 1.86

1.57 ± 2.36

< 0.001

 Kidney/ Bullet shape

18/6

90/73

0.067

  1. DH indicates disc height, ROM range of motion
  2. aHeight variance = cage height – preoperative disc height
Back to article page

BMC Musculoskeletal Disorders

ISSN: 1471-2474

Contact us