Table 1 Demographic data of patients with simultaneous ipsilateral pelvic and acetabular fractures

Patient number

26

Sex

 Male

17

 Female

9

Age (year-old)

47.89 ± 14.82

Trauma Mechanism

 Motorbike accident

11

 Fall from height (>6 meter)

11

 Car accident

3

 Pedestrian injury

1

Fracture classification

 Pelvis (AO classification)

  A1.1

1

  B2.1

2

  B2.2

10

  B2.3

3

  B3.2

1

  B3.3

2

  C1.3

4

  C3.1

2

  C3.3

2

 Acetabulum (Letournal classification)

  Anterior column

10

  Transverse

4

Transverse + posterior wall

1

T-shape

1

Anterior column plus

4

hemi-transverse

Associated both columns

5

 T-shape plus posterior wall ^a

2

Sacral fracture

 Rotational instability  

7

 Rotational + Vertical instability

6

Sacral-iliac joint diastasis

14

Injury severity score

16.7 ± 8.6 (median: 17, interquartile range: 12)

Follow up (mons)

14.7 ± 8.90 (range: 3 – 43)

Post-traumatic osteoarthritis (THA)

2 hips (in one patient)