Table 1 Patient demographic characteristics

Age^a

69.8 ± 1.4

68.3 ± 1.2

Male, number (%)

3 (25 %)

25 (57 %)

Female, number (%)

9 (75 %)

19 (43 %)

BMI^a

31.3 ± 6.4

33.4 ± 5.1

K&L grade^b

2 (1, 4)

3 (2, 4)

Medial OA, number of patients (%)

6 (50 %)

34 (77 %)

Lateral OA, number of patients (%)

2 (16 %)

6 (14 %)

Patello-femoral OA, number of patients (%)

4 (33 %)

4 (9 %)

Subchondral cyst present, number of patients (%)

0 (0 %)

12 (27 %)

Outerbridge classification^b

3 (3, 4)

4 (3, 4)

Cartilage volume^a

1.3 ± 0.2

0.9 ± 0.3

OARSI score^a

3.7 ± 1.2

5 ± 0.9