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Table 3 Postoperative comparison of LIN and ULN

From: Distal locked versus unlocked intramedullary nailing for stable intertrochanteric fractures, a systematic review and meta-analysis

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

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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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