Table 3 Group mean scores for the patients’ measures of muscle size and knee ROM across groups, for both limbs

ROM Flex (°) op.

control

106.9 (9.2)

101.3 (6.6)

103.7 (6.9)

−3.2

1.3

0.34

–

−2.9

non-op.

113.5 (10.5)

112.5 (9.0)

112.1 (8.5)

−1.4

–

− 1.4

ROM Flex (°) op.

experimental

105.1 (10.1)

104.4 (6.9)

107.3 (6.9)

2.2

0.02

2.2

non-op.

114.1 (9.8)

114.6 (9.0)

115.3(8.8)

1.2

0.01

1.0

ROM Ext (°) op.

control

−6.9 (5.2)

−4.2 (2.7)

−1.6 (0.9)

5.3

0.7

0.52

1.0

77

non-op.

−4.3 (4.1)

−3.1 (3.3)

−2.3 (1.5)

2.0

0.5

46

ROM Ext (°) op.

experimental

−6.0 (4.1)

−2.7 (2.1)

0.2 (1.1)

5.8

1.4

97

non-op.

−2.3 (2.4)

−1.5 (1.8)

−0.7 (1.5)

1.6

0.6

68

CSA_REL (mm²) op.

control

422.1 (72.0)

497.8 (69.4)

564.0 (91.1)

141.9

2.0

34

non-op.

460.9 (71.4)

537.3 (78.0)

612.1 (98.7)

151.2

2.1

33

CSA_REL (mm²) op.

experimental

450.2 (69.6)

557.9 (77.4)

708.6 (111.2)

258.4

19.6

0.001**

3.7

57

non-op.

487.4 (64.1)

578.5 (73.9)

663.9 (73.7)

176.5

2.7

36

CSA_CONTR (mm²) op.

control

338.1 (69.2)

433.0 (85.3)

494.8 (90.7)

156.7

2.3

46

non-op.

371.1 (66.9)

478.1 (80.4)

550.2 (94.9)

179.1

2.7

48

CSA_CONTR (mm²) op.

experimental

343.1 (67.8)

463.4 (86.9)

595.1 (128.4)

252.0

11.3

0.001**

3.7

73

non-op.

401.2 (65.3)

496.7 (84.6.)

576.3 (81.4)

175.1

2.7

44