Skip to main content

Table 3 Primary and secondary outcome of the studied groups

From: Posterior and postero-lateral incidental durotomy during lumbar spine surgery: primary repair versus augmented primary repair

  Primary repair Group (A) Augmented repair Group (B) χ2 P
N = 34 N = 34   
Clinical outcome
Better 32 (94.1%) 30 (88.2%)   
Worse 2 (5.9%) 4 (11.8%) Fisher 0.673
Length of hospital stay (days)
Mean ± SD 7.94 ± 6.46 9.56 ± 8.05 Z (-2.173) 0.03*
Days of drains
Mean ± SD 4.38 ± 0.49 4.62 ± 1.16 t (1.092) 0.281
Days of bed rest
Mean ± SD 4.5 ± 0.79 5.12 ± 1.79 t (1.843) 0.072
Revision surgery
No 32 (94.1%) 30 (88.2%)   
Yes 2 (5.9%) 4 (11.8%) Fisher 0.673
Further management
Blood patch 4 (13.6%) 3 (8.8%) Fisher 0.476
Complications
No 29 (85.3%) 27 (91.2%)   
CSF leakage 5 (14.7%) 3 (8.8%) Fisher 0.709
  1. *T independent sample t-test p < 0.05 is statistically significant