Table 1 Preoperative characteristics of participants and tourniquet time in the control and LST groups
| Â | All participants | Matched participants | ||||
|---|---|---|---|---|---|---|
Control (n = 127) | LST (n = 46) | SMD | Control (n = 41) | LST (n = 41) | SMD | |
Age (years), median (IQR) | 74 (68, 79) | 71 (66, 75) | 0.06 | 71 (66, 75) | 71 (67, 75) | 0.00 |
Male, n (%) | 40 (31) | 4 (9) | 0.59 | 5 (12) | 4 (10) | 0.08 |
BMI (kg/m2), median (IQR) | 26 (23, 28) | 25 (23, 28) | 0.02 | 26 (24, 29) | 25 (23, 28) | 0.00 |
Current medical history, n (%) | ||||||
 Heart disease | 15 (12) | 3 (7) | 0.18 | 2 (5) | 3 (7) | 0.10 |
 Diabetes | 24 (19) | 8 (17) | 0.04 | 8 (20) | 8 (20) | 0.00 |
 Hyperlipidemia | 51 (40) | 20 (43) | 0.07 | 18 (44) | 18 (44) | 0.00 |
 Rheumatoid arthritis | 1 (1) | 2 (4) | 0.23 | 0 (0) | 2 (5) | 0.32 |
KL grade 3 of surgical knee, n (%) | 14 (12) | 5 (11) | 0.00 | 4 (10) | 5 (12) | 0.08 |
Contralateral knee, n (%) | ||||||
 OA and TKA, n (%) | 102 (80) | 38 (83) | 0.06 | 32 (78) | 33 (80) | 0.06 |
 Quadriceps strength, median (IQR) | 1.3 (1.1, 1.7) | 1.4 (1.2, 1.7) | 0.05 | 1.3 (1.1, 1.7) | 1.4 (1.2, 1.7) | 0.01 |
T-handle cane usage, n (%) | 7 (6) | 1 (2) | 0.17 | 0 (0) | 1 (2) | 0.22 |
SCT (s), median (IQR) | 24 (16, 34) | 20 (14, 25) | 0.03 | 21 (17, 31) | 22 (16, 27) | 0.01 |
JKOM (points), median (IQR) | 37 (25, 49) | 32 (25, 45) | 0.01 | 36 (32, 46) | 34 (27, 48) | 0.00 |
Tourniquet time (min), median (IQR) | 58 (54, 66) | 56 (52, 67) | 0.01 | 56, (53, 63) | 56 (52, 65) | 0.01 |