Table 1 General data (Mean ± SD/M ± IQR).

From: Comparative study of direct pars repair versus transforaminal lumbar interbody fusion for low grade isthmic spondylolisthesis: a retrospective analysis

 

Direct repair (N = 69)

TLIF (N = 71)

Age in Yrs, (range)

37.00 ± 21.00 (15–64)

51.00 ± 12.00 (33–75)

Gender, n (%)

 Male

37 (53.62)

22(30.99)

 Female

32 (46.38)

49(69.01)

 Leg pain, n (%)

15 (21.74)

54(76.06)

Level treated, n (%)

 L5

56 (81.16)

42(59.15)

 L4

13 (18.84)

28(39.44)

 L3

0

1(1.41)

 Operation time, (range) (min)

193.17 ± 48.79 (120–347)

205.00 ± 75.00 (120–344)

 Blood loss, (range) (ml)

70.00 ± 30.00 (30–180)

200.00 ± 150.00 (80–800)

  1. Values in the age, blood loss, and operation time of segmental fusion data represent M ± IQR, and operation time of direct repair represent mean ± SD.
  2. N total population; n number of patients; SD standard deviation; M median, IQR interquartile range.
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