Distribution of patients and hip joints based on the severity of hip OA.

Table 1: Distribution of patients and hip joints based on the severity of hip OA.

K-L Grade

Group I

K-L Rö II

patients/HJ

Group II

K-L Rö III

patients/HJ

Group III

K-L Rö IV

patients/HJ

Unilateral hip OA

Total number of hip joints

K-L Rö II

patients/HJ

52/104

17/17

9/9

1/1

131

K-L Rö III

patients/HJ

17/17

4/8

4/4

2/2

31

K-L Rö IV

patients/HJ

9/9

4/4

5/10

2/2

25

Unilateral

Hip OA

1/1

2/2

2/2

Total number of patients

79

27

20

joints 187

patients 126