Table 3.
Postoperative comparison of LIN and ULN
| Studies | No. of studies | Patients (N) | Distal locking (events/total) | Distal unlocking (events/total) | Heterogeneity (I2, P) | Result OR /MD, 95%CI,P |
|---|---|---|---|---|---|---|
| Total complications | ||||||
| RCT subgroup | 2 | 261 | 73/258 | 50/190 | I2 = 0%, P = 0.90 | 1.40 [0.90, 2.19] P = 0.14 |
| Non-RCT subgroup | 2 | 448 | 20/112 | 21/149 | I2 = 0%, P = 0.34 | 1.28 [0.65, 2.51] P = 0.06 |
| Overall | 4 | 709 | 93/370 | 71/339 | I2 = 0%, P = 0.88 | 1.36 [0.94, 1.98] P = 0.10 |
| Haematoma | 3 | 537 | 11/298 | 8/239 | I2 = 0%, P = 0.78 | 1.13 [0.44, 2.90] P = 0.80 |
| Deep Vein Thrombosis | 3 | 537 | 3/298 | 2/239 | I2 = 0%, P = 0.98 | 1.18 [0.22, 6.26] P = 0.85 |
| Cutting out | ||||||
| RCT subgroup | 4 | 714 | 6/388 | 3/326 | I2 = 0%, P = 0.96 | 1.51 [0.37, 6.25] P = 0.57 |
| Non-RCT subgroup | 4 | 415 | 2/186 | 1/229 | I2 = 41%, P = 0.90 | 1.52 [0.26, 8.99] P = 0.64 |
| Overall | 8 | 1129 | 8/574 | 4/555 | I2 = 0%, P = 0.64 | 1.52 [0.50, 4.60] P = 0.46 |
| Loss of reduction | ||||||
| RCT subgroup | 3 | 655 | 3/421 | 5/399 | I2 = 43%, P = 0.19 | 0.66 [0.08, 5.76] P = 0.71 |
| Non-RCT subgroup | 2 | 165 | 3/359 | 5/296 | N/A | N/A |
| Overall | 5 | 820 | 0/62 | 0/103 | I2 = 43%, P = 0.19 | 0.66 [0.08, 5.76] P = 0.71 |
| Peri-implant fractures | ||||||
| RCT subgroup | 4 | 714 | 6/388 | 8/326 | I2 = 60%, P = 0.11 | 0.50 [0.06, 4.23] P = 0.52 |
| Non-RCT subgroup | 4 | 1157 | 5/725 | 18/432 | I2 = 78%, P = 0.004 | 0.73 [0.05, 11.03] P = 0.82 |
| Overall | 8 | 1871 | 11/1113 | 26/758 | I2 = 69%, P = 0.006 | 0.59 [0.11, 3.18] P = 0.54 |
| Wound infection | 4 | 714 | 12/388 | 13/326 | I2 = 0%, P = 0.80 | 0.76 [0.34, 1.67] P = 0.49 |
| Deep infection | 4 | 714 | 3/388 | 0/326 | N/A | 7.00 [0.36, 137.53] P = 0.20 |
| Delayed union | ||||||
| RCT subgroup | 4 | 714 | 5/388 | 3/326 | I2 = 41%, P = 0.18 | 1.53 [0.43, 5.43] P = 0.51 |
| Non-RCT subgroup | 3 | 308 | 0/130 | 1/178 | N/A | 0.51 [0.02, 13.29] P = 0.69 |
| Overall | 7 | 1022 | 5/518 | 4/504 | I2 = 30%, P = 0.19 | 1.30 [0.41, 4.13] P = 0.65 |
| Non-union | 3 | 272 | 0/298 | 1/239 | N/A | 0.35 [0.01, 8.57] P = 0.52 |
| Avascular necrosis of the femoral head | ||||||
| RCT subgroup | 3 | 655 | 1/359 | 2/296 | I2 = 0%, P = 0.82 | 0.41 [0.05, 3.30] P = 0.40 |
| Non-RCT subgroup | 3 | 368 | 0/168 | 2/200 | I2 = 0%, P = 0.79 | 0.40 [0.04, 3.93] P = 0.43 |
| Overall | 6 | 1023 | 1/527 | 4/496 | I2 = 0%, P = 0.99 | 0.41 [0.09, 1.90] P = 0.25 |
| Thigh pain | ||||||
| RCT subgroup | 3 | 502 | 49/249 | 16/253 | I2 = 63%, P = 0.07 | 2.90 [0.97, 8.68] P = 0.06 |
| Non-RCT subgroup | 3 | 272 | 7/118 | 6/154 | I2 = 20%, P = 0.29 | 1.62 [0.37, 7.04] P = 0.52 |
| Overall | 6 | 774 | 55/367 | 22/407 | I2 = 45%, P = 0.10 | 2.45 [1.05, 5.73] P = 0.04 |