Table 1.
Characteristics of the included studies
| Author | Year | Age (T/N T) |
Number of patients | T/N T | Tourniquet pressure | Operation time (min) | DVT | K-C | D-d | Pain |
|---|---|---|---|---|---|---|---|---|---|---|
| Abdelsalam | 1995 | 72.0/74.0 | 80 | 40/40 | Twice SBP | <90 | ✓ | ✓ | ||
| Wakankar | 1999 | 72.5/71.8 | 77 | 37/40 | Twice SBP | NA | ✓ | ✓ | ✓ | |
| Aglietti | 2000 | 70.0/68.0 | 20 | 10/10 | 0.8 bar | 90.0 | ✓ | |||
| Vandenbussche | 2002 | 72.5/68.5 | 80 | 40/40 | 350 mmHg | 151.0 | ✓ | ✓ | ||
| Wauke | 2002 | 63.2/61.4 | 37 | 19/18 | SBP+100 mmHg | 75.1 | ✓ | |||
| Li | 2008 | 71.0/70.0 | 80 | 40/40 | SBP+100 mmHg | 73.0 | ✓ | |||
| Zhang | 2010 | 72.0/71.0 | 60 | 30/30 | SBP+100 mmHg | <90 | ✓ | |||
| Yin | 2011 | 63.1/61.9 | 39 | 20/19 | NA | NA | ✓ | |||
| Yin | 2012 | 68.9/67.1 | 40 | 20/20 | NA | NA | ✓ | |||
| Ejaz | 2014 | 68.0/68.0 | 92 | 33/31 | 250 mmHg | 70.0 | ✓ | ✓ | ||
| Mori | 2016 | 72.8/74.6 | 103 | 51/52 | 250 mmHg | 63.6 | ✓ | |||
| Zhang | 2016 | 63.2/65.2 | 230 | 84/82 | SBP+13.3 kPa | 81.7 | ✓ | ✓ | ||
| Zhou | 2017 | 66.8/69.1 | 150 | 72/68 | NA | 77.2 | ✓ | ✓ | ✓ | |
| Wu | 2018 | 67.6/68.1 | 112 | 50/50 | 250 mmHg | 67.2 | ✓ | ✓ | ✓ | |
| Goel | 2019 | 66.0/66.5 | 200 | 100/99 | 300/225 mm Hg | 71.6 | ✓ | ✓ |
T tourniquet, N T non- tourniquet, DVT deep venous thrombosis, NA not available, K-C knee circumference, D-d D-dimers, SBP systolic blood pressure