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Table 2 Radiographic assessment of the fractures

From: Risk factors for refracture after plate removal for midshaft clavicle fracture after bone union

 Refracture (n = 20)No refracture (n = 258)p
Fixation device  0.270
 Dynamic compression plate20 (100%)241 (93.4%) 
 Locking compression plate016 (6.6%) 
Wires used?  0.193
 Yes6 (30%)50 (19.4%) 
 No14 (70%)208 (80.6%) 
Interfragmentary screws used?  0.154
 Yes4 (20%)94 (36.4%) 
 No16 (80%)164 (63.6%) 
AO/OTA classification  0.965
 15.2A3 (15%)38 (14.7%) 
 15.2B15 (75%)189 (73.3%) 
 15.2C2 (10%)31 (12.0%) 
Robinson classification  0.910
 2A102 (0.8%) 
 2A21 (5%)23 (8.9%) 
 2B115 (75%)186 (72.1%) 
 2B24 (20%)47 (18.2%) 
Clavicular length (mm)15.0 ± 1.4 (12.9–17.5)16.1 ± 1.4 (12.1–19.3)0.002
Bone diameter at the fracture site (mm)1.14 ± 0.23 (0.81–1.79)1.25 ± 0.19 (0.73–1.64)0.021
Callus formation  0.567
 Yes1 (5%)10 (3.9%) 
 No19 (95%)248 (96.1%) 
  1. All values are mean ± standard deviation (range) or n (%)