Table 2 Clinical evaluation results

Extension

Mean value ± S.D. (°)

Pvalue

Flexion

Mean value ± S.D. (°)

Pvalue

Preoperative

−6.0 ± 5.9

Preoperative

131.3 ± 14.2

1 month

−4.8 ± 4.8

0.23

1 month

133.9 ± 12.5

0.37

3 months

−4.3 ± 4.5

0.10

3 months

134.3 ± 11.9

0.29

6 months

−3.7 ± 4.4

0.02^a

6 months

134.5 ± 12.4

0.26

12 months

−3.5 ± 4.1

12 months

132.6 ± 15.2

0.67

Extension (Quadriceps)

Mean value ± S.D. (Nm)

Pvalue

Flexion (Hamstrings)

Mean value ± S.D. (Nm)

Pvalue

Preoperative

202.5 ± 85.9

Preoperative

99.5 ± 39.7

1 month

198.9 ± 91.1

0.86

1 month

108.2 ± 41.3

0.36

3 months

219.0 ± 103.8

0.43

3 months

116.6 ± 59.8

0.07

6 months

235.4 ± 104.5

0.11

6 months

124.2 ± 41.7

< 0.01^a

12 months

261.9 ± 106.7

< 0.01^a

12 months

126.8 ± 38.7

33.4 ± 18.2

Preoperative

46.5 ± 23.5

26.3 ± 14.6

1 month

30.1 ± 18.8

< 0.01^a

22.8 ± 15.7

3 months

27.3 ± 17.6

< 0.01^a

22.6 ± 16.4

6 months

27.4 ± 18.8

< 0.01^a

12 months

22.6 ± 17.5

12 months

32.8 ± 24.7

Total Score

Mean value ± S.D.

Pvalue

Average Score of 5 subscales

Mean value ± S.D.

Pvalue

Preoperative

34.9 ± 18.2

Preoperative

48.7 ± 15.8

1 month

30.5 ± 17.1

0.26

1 month

55.2 ± 17.6

0.04^a

3 months

25.8 ± 17.6

0.02^a

3 months

58.6 ± 15.4

< 0.01^a

6 months

24.5 ± 17.8

< 0.01^a

6 months

59.2 ± 15.8

< 0.01^a

12 months

26.8 ± 19.7

12 months

58.6 ± 16.8