Table 3 Results from each Performed Analysis on both the WOMAC and VAS Scales

3 months

3

−2.15 [−5.65, 1.35]

0.23

4

− 0.51 [− 1.02, 0.01]

0.05

6 months

4

−9.51 [− 15.20, −3.83]

0.05

4

− 0.97 [− 1.94, 0.00]

0.05

6 months: KL 1–2

1

−3.86 [−6.01, − 1.71]

0.0004

1

−0.28 [− 0.97, 0.41]

0.43

6 months: KL 2–3

2

− 9.10 [− 15.73, − 2.46]

0.007

2

− 0.68 [− 2.01, 0.65]

0.32

9 months*

1

−8.04 [− 10.19, − 5.89]

< 0.00001

–

–

–

12 months

2

− 8.10 [− 23.86, 7.65]

0.31

2

−0.07 [− 0.42, 0.28]

0.69

LP-PRP

2

− 7.95 [− 18.14, 2.24]

0.13

2

−0.39 [− 1.01, 0.23]

0.22

LR-PRP

2

− 11.26 [− 19.88, − 2.64]

0.01

5

− 0.98 [− 1.80, − 0.16]

0.02

Triple PRP injection

2

−9.65 [− 21.35, 2.04]

0.11

3

−1.30 [− 2.33, − 0.26]

0.01

Single PRP Injection

2

−9.10 [− 15.75, − 2.46]

0.007

44

− 0.26 [− 1.03, 0.52]

0.52