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Table 1 Patient characteristics

From: A 2-year prospective study of patient-relevant outcomes in patients operated on for knee osteoarthritis with tibial osteotomy

 

All N = 58

Men n = 30

Women n = 28

Age mean (years)

54

54

55

SD

7

8.7

4

BMI mean

29

28.7

29.5

SD

4.5

4

5

Medial OA (n)

49

27

22

Pre HKA mean (degrees)

170

170

171

SD

4.5

5

3.5

Lateral OA (n)

9

3

6

Pre HKA median (degrees)

189

188

189.5

IQR

184–194

184–190

184–194

Known knee trauma (n)

27

16

11

mean age (years)

51

50

53

SD

7

8

5

Not known knee trauma (n)

28

12

16

mean age (years)

58

58

56

SD

5

7

4

Physically active earlier in life (n)

45

25

20

   Level of physical activity (n)

   

   recreational

23

13

10

   competitive

12

11

1

Joint loading in sport activity (n) a

   

low

21

7

14

medium

12

6

6

high

12

12

0

Physically active the year prior surgery (n)

22

14

8

Smokers (n)

14

6

8

Working (n)

51

26

25

   Full time (n)

44

26

18

   Part time (n)

7

0

7

   Disability pension (n)

3

0

3

   Retired (n)

4

4

0

  1. BMI = Body Mass Index, OA = Osteoarthritis, Pre HKA = Preoperative radiographic Hip-Knee-Ankle angle, IQR = Inter Quartile Range aaccording to Buckwalter & Lane [11].