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Table 1 Characteristics of the patients

From: Quantitative analysis of paraspinal muscle atrophy after oblique lateral interbody fusion alone vs. combined with percutaneous pedicle screw fixation in patients with spondylolisthesis

 OLIF alone (n = 32)OLIF+PPSF (n = 41)P
Gender
 Male10 (31.3%)11 (26.8%)0.679
 Female22 (68.7%)30 (73.2%) 
Age (years)59.8 ± 13.761.0 ± 9.30.669
Level
 L4–530 (93.8%)37 (90.2%)0.584
 L5-S12 (6.2%)4 (9.8%) 
Osteoporosis8 (25.0%)15 (36.6%)0.290
Operative time (min)98 ± 14182 ± 32< 0.001
Blood loss (mL)108 ± 49140 ± 360.002
  1. OLIF Oblique lateral interbody fusion, PPSF Percutaneous pedicle screw fixation