Group

AL

PL

Control

Number

30

39

37

Age (years)

63.0 ± 11.3

63.4 ± 10.6

63.8 ± 11.9

Duration of disease

30.4 ± 12.2

35.2 ± 15.3

Months from surgery

20.9 ± 17.4

107.2 ± 80.2

Sex (male/female)

4/25

6/23

4/33

Dominant (Rt/Lt)

14/16

20/19

19/18

Diease

Osteoarthritis

20

28

Osteonecrosis

8

11

Rheumatoid

2