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Table 3 Comparison of safety parameters among groups

From: Is lower tourniquet pressure during total knee arthroplasty effective? A prospective randomized controlled trial

  Conventional
[SBP + 150]
(n = 80)
Lower Pressure
[SBP + 120]
(n = 80)
P value
More painful site
 Knee 59 (74%) 60 (75%) 0.731
 Thigh 15 (19%) 12 (15%)
 Knee = Thigh 6 (7%) 8 (10%)
Knee pain (VAS) 2.8 (1.4) 3.0 (1.6) 0.451
Knee pain (Likert)
 No or Slight 35 (44%) 37 (46%) 0.751
  ≥ Moderate 45 (56%) 43 (54%)
Thigh pain (VAS) 1.5 (1.7) 1.3 (1.6) 0.270
Thigh pain (Likert)
 No or Slight 61 (76%) 64 (80%) 0.566
  ≥ Moderate 19 (24%) 16 (20%)
Thigh ecchymosis
 Grade 0–1 77 (96%) 73 (91%) 0.191
 Grade 2–3 3 (4%) 7 (9%)
Thigh bullae 1 (1%) 1 (1%) 1.000
Thigh necrosis 0 (0%) 0 (0%) N/A
Nerve palsy 0 (0%) 0 (0%) N/A
Symptomatic DVT 0 (0%) 0 (0%) N/A
Symptomatic PE 0 (0%) 0 (0%) N/A
Delayed rehabilitation 0 (0%) 0 (0%) N/A
  1. Data are presented as a number of patients and the percentage, except for the knee and thigh pain (VAS), the data for which are presented as mean and standard deviation
  2. VAS visual analog scale, DVT deep vein thrombosis, PE pulmonary embolism