Table 7 Mean range of motion before surgery and at last follow-up

Elbow joint

Flexion and extension (°)

111.25 ± 15.29

121.25 ± 11.57

0.01

Forearm

Pronation (°)

44.38 ± 7.76

58.75 ± 6.41

0.01

Supination (°)

54.38 ± 7.76

65.63 ± 6.78

< 0.001

Wrist joint

Flexion (°)

38.75 ± 6.41

55.00 ± 6.55

< 0.001

Extension (°)

41.88 ± 7.99

51.25 ± 7.91

0.01

Ulnar deviation (°)

40.00 ± 8.02

29.38 ± 8.63

< 0.001

Radial deviation (°)

16.88 ± 3.72

27.50 ± 4.63

0.01