Table 1 Baseline characteristics of the study population

Number of patients

85

24

109

Male patients, number (%)

30

(35.3)

10

(41.7)

40

(36.7)

Age, mean (SD) in years

63.1

(15.2)

58.8

(15.4)

62.1

(15.2)

Body mass index, mean (SD) kg/ m²

26.8

(5.1)

25.0

(3.8)

26.4

(4.9)

Kellgren & Lawrence score: number (%)

1

3

(3.6)

2

(8.7)

5

(4.7)

2

16

(19.3)

6

(26.1)

22

(20.8)

3

40

(48.2)

8

(34.8)

48

(45.3)

4

24

(28.9)

7

(30.4)

31

(29.2)

Left side, numer (%)

43

(50.6)

13

(54.2)

56

(51.4)

ASA score: number (%)

1

18

(21.2)

8

(33.3)

26

(23.9)

2

45

(52.9)

12

(50.0)

57

(52.3)

3

22

(25.9)

4

(16.7)

26

(23.9)