Table 1 Demographic data

Age (years)^a

65 ± 11.2 (45–85)

Sex: male/female^b

11/24

Treated side: right/left^b

24/11

 Osteoarthritis

26

 Osteonecrosis

7

 Rheumatoid arthritis

2

Height (m)^a

1.56 ± 0.1 (1.39–1.77)

Weight (kg)^a

58.3 ± 12 (36.6–93.4)

BMI (kg/m²)^a

23.9 ± 3.4 (15.7–31.6)

Crowe G1/2/3/4^b

33/2/0/0

Sharp angle (°) ^a

41.7 ± 6.9 (26–58)

CE angle (°) ^a

19.9 ± 19.9 (− 49–63)

 Modified Watson-Jones

35