Table 3 Clinical parameters of the control and PRP groups before and 3 months after surgery

Circumference (cm)

40.6±3.4

41.2±4.2

42.6±4.2

43.4±4.5

Pain

5.8±1.6^f

1.3±2.2^f

4.9±2.4^g

1.2±2.2^g

Flexion (degrees - °)

137.3±11.3

140.6±8.9

134.6±13.6^e

140.3±7.0^e

IKDC index

49.5±16.5^a

81.5±17.2^a

46.1±11.9^b

80.9±13.0^b

Lysholm score

59.9±15.3^c

88.2±21.6^c

59.4±14.7^d

91.1±10.7^d