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Table 2 Surgical segments, operative time, blood loss, complications, and adjacent segment instability

From: Selective versus multi-segmental decompression and fusion for multi-segment lumbar spinal stenosis with single-segment degenerative spondylolisthesis

 

Group S

Group M

P

NDS

2.36 ± 0.49

2.40 ± 0.50

0.783

NFS

1.18 ± 0.39

2.40 ± 0.50

< 0.01

SSS

  

0.808

 Two-segment

14

12

 

 Three-segment

8

8

 

Operative time (min)

 Two-segment

148.60 ± 11.0

227.5 ± 25.3

< 0.01

 Three-segment

180.0 ± 7.6

276.3 ± 14.1

< 0.01

Blood loss (ml)

 Two-segment

292.1 ± 40.6

507.5 ± 55.6

< 0.01

 Three-segment

448.8 ± 90.5

731.3 ± 164.6

< 0.01

Complications

 Nerve root injury

2

3

0.656

 Wound infection

0

2

0.221

 Dural tear

0

1

0.476

 ASI

0

3

0.099

  1. SSS subgroup based on surgical segment, NDS mean number of decompressed segment, NFS mean number of fused segment, ASI adjacent segment instability
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X