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Table 4 Univariate analysis of factors involving reduction quality of the acetabulum on X rays (anteroposterior, iliac oblique, and obturator oblique views) and CT scan (axial, coronal and sagittal views)

From: Matta’s criteria may be useful for evaluating and predicting the reduction quality of simultaneous acetabular and ipsilateral pelvic ring fractures

Selected factors

X ray

CT scan

P value

P value

AP

Iliac oblique

Obturator oblique

Axial

Coronal

Sagittal

Classification of pelvic fracture (AO)

1

0.159

0.37

0.788

0.658

0.297

SI joint diastasis

0.327

0.067

0.114

0.322

0.519

0.217

Sacral fracture

0.931

0.456

0.763

0.639

0.702

0.187

Classification of acetabular fracture (Letournel)

0.001*

0.007

0.168

0.002*

0.059

0.020*

Sequence of surgical approaches

0.599

0.748

0.511

0.447

0.680

0.680

Reduction quality of pelvis (Matta)

0.011*

0.030*

0.335

0.087

0.708

0.173

Reduction quality of pelvis (inlet ratio)

0.412

0.941

0.414

0.107

0.650

0.407

Reduction quality or pelvis (outlet ratio)

0.862

0.823

0.470

0.985

0.354

0.209

Vertical reduction quality or pelvis

0.620

0.291

0.479

0.377

0.481

0.174

Rotational reduction quality of pelvis

0.966

0.177

0.130

0.109

0.159

0.291

  1. *Statistical significance