Table 1 Pre- and peri-operative data for patients who received the allocated treatment

Gender (male/female)

14/10

15/9

0.9

Primary diagnosis

1

 Primary osteoarthritis

18

19

 Protrusio acetabuli

1

1

 Post-traumatic arthritis

1

–

 Hip dysplasia

2

1

 Osteonecrosis

1

2

 Rheumatoid arthritis

1

–

 Post-septic arthritis

–

1

Age in years at surgery mean (SD)

50 (7.1)

50 (7.8)

0.6

BMI mean (SD)

28 (5.9)

28 (4.1)

1

Acetabular vertical angle mean (SD)

49 (7.5)

43 (8)

0.01

HR femoral component CCD angle mean (SD)

142 (7.7)

–

–

Acetabular cup diameter mean (SD)

54 (3.8)

54 (3.8)

0.9

Bearing diameter, mean (SD)

48 (3.8)

48 (3.8)

0.9