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Table 4 Technical characteristics of all fractures and primary outcomes

From: Does plate type influence the clinical outcomes and implant removal in midclavicular fractures fixed with 2.7-mm anteroinferior plates? A retrospective cohort study

 

Recon

DCP

pvalue

All fractures

71, 45.5%

85, 54.5%

 

  Displacement (mm)a

14.4 ± 7.4 (0 to 39)

16.7 ± 8.4 (0 to 36)

0.106

  Plate lengthb (holes)

12 (8 to 16)

12 (6 to 12)

<0.001

  Working lengthb (holes)

1 (0 to 5)

1 (0 to 4)

0.184

  Cortical screws usedb

8 (6 to 12)

8 (5 to 10)

0.001

  Lag screws usedb

1 (0 to 3)

1 (0 to 4)

0.298

United fractures

64, 90.1%

84, 98.8%

0.014

  Plate length (holes)

12 (8 to 16)

12 (6 to 12)

<0.001

  Working length (holes)

2 (0 to 5)

1 (0 to 4)

0.123

  Lag screws used

1 (0 to 3)

1 (0 to 4)

0.501

Nonunion

5, 7.0%

1, 1.2%

0.058

  Plate length (holes)

14 (10 to 16)

10

0.228

  Working length (holes)

1 (0 to 3)

3

0.206

  Lags screws used

0 (0 to 2)

1

0.299

Malunion

2, 2.8%

0, 0%

0.119

  Plate length (holes)

14 (12 to 16)

 

UA

  Working length (holes)

2.5 (1.4)

 

UA

  Lags screws used

0.5 (0 to 1)

 

UA

Implant failure

6, 8.5%

1, 1.2%

0.029

  Plate length (holes)

14 (10 to 16)

10

0.190

  Working length (holes)

1 (0 to 4)

0

0.190

  Lags screws used

0.5 (0 to 2)

1

0.589

  1. aStatistics are reported as the mean ± standard deviation (range); bstatistics are reported as the median (range). UA, unable to assess; none in comparator group.