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Table 2 Demographics of patients undergoing XLIF with PPS or open PILF

From: Comparison of serum markers for muscle damage, surgical blood loss, postoperative recovery, and surgical site pain after extreme lateral interbody fusion with percutaneous pedicle screws or traditional open posterior lumbar interbody fusion

  Intraoperative Technique P
XLIF/PPS (n = 46) PLIF (n = 56)
Age,* y 71.3 ± 8.6 69.0 ± 9.2 0.19
Sex, female/male 31/15 29/27 0.16
BMI,* kg/m2 23.4 ± 4.1 23.4 ± 4.6 0.98
Preoperative %Slip,* %
Number of fused levels,*
1.88 ± 0.7 1.62 ± 0.8 0.1
Current smoking,* n (%) 4 (8.7%) 7 (12.5) 0.75
Preoperative score
 VAS score (lumbar) 4.9 ± 3.2 6.7 ± 2.5 0.37
 RDQ score 13.9 ± 5.5 12.8 ± 4.2 0.49
 ODI score 21.2 ± 6.9 19.2 ± 6.5 0.17
 L-JOA score 14.1 ± 4.5 13.5 ± 3.8 0.41
  1. XLIF = extreme lateral interbody fusion, PPS = percutaneous pedicle screws, PLIF = posterior lumbar interbody fusion, BMI = body mass index, n = number in group, VSA = visual analog scale, RDQ = Roland–Morris Disability Questionnaire, ODI = Oswestry Disability Index, L-JOA = lumbar--Japanese Orthopaedic Association, *Mean ± standard deviation (SD)
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