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Table 1 Demographics and diagnoses

From: Cup orientation following posterior approach THA – the effect of different visual aids and pelvic supports

 

Number of Hips

Mechanical alignment guide

Inclinometer

p-value

Stulberg positioner

Capello positioner

p-value

Demographics

 Number of hips

150

50

50

50

50

 Gender (m: f)

62: 88

19: 31

23: 27

0.42

23: 27

20: 30

0.55

 Age at surgery in years (mean, SD)

61 (15)

59 (13)

59 (18)

0.76

59 (18)

65 (13)

0.07

 BMI in kg/m2 (mean, SD)

31 (6)

28 (5)

30 (6)

0.14

30 (6)

32 (6)

0.13

 Fat thickness in cm (mean, SD)

7 (3)

7 (2)

7 (3)

0.99

7 (3)

7 (2)

0.99

Diagnosis

 Primary osteoarthritis

113

41

39

41

46

 Secondary osteoarthritis due to

  Developmental dysplasia

19

5

4

5

2

  Avascular necrosis

6

1

2

2

1

  Other (e.g fracture, Perthe’s, failed ORIF)

12

3

5

2

1

Acetabular Implants

 CSF (JRI, London UK)

64

 Trident (Stryker Orthopaedics, Mahwah, NJ, USA)

11

 G7 (Zimmer Biomet, Warsaw, IN, USA)

75