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Table 4 Incidence of moderate to severe pain (VAS 4-7)

From: Comparison of continuous femoral nerve block (CFNB/SA) and continuous femoral nerve block with mini-dose spinal morphine (CFNB/SAMO) for postoperative analgesia after total knee arthroplasty (TKA): a randomized controlled study

  CFNB/SA CFNB/SAMO p-value
(n = 33) (n = 35)
Postoperative, hr Patients, n (%)  
1 - - -
6 22 (66.67 %) 17 (48.57 %) 0.13
12 23 (69.70 %) 15 (42.86 %) 0.03
24 22 (66.67 %) 16 (45.71 %) 0.08
36 13 (39.39 %) 11 (31.43 %) 0.49
48 17 (51.52 %) 9 (25.71 %) 0.03
  1. Data are shown as number and percentage