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Table 2 Preoperative and postoperative outcome parameters

From: Arthroscopic treatment of unstable scaphoid fracture and nonunion with two headless compression screws and distal radius bone graft

Group

HCS (n = 13)

Bone graft with HCS (n = 10)

Total (n = 23)

Flexion

Preoperative

54.33 ± 10.67

52.86 ± 4.42

53.54 ± 7.98

Postoperative

58.50 ± 7.09

57.29 ± 12.60

57.85 ± 10.44

Mean difference (95% CI)

4.17 (− 6.08 to 14.42)

4.43 (− 5.46 to 14.43)

4.30 (− 2.84 to 11.44)

P Value

0.484

0.432

0.267

Extension

Preoperative

48 ± 10.16

50.29 ± 11.89

49.23 ± 11.18

Postoperative

64.01 ± 9.15

63.57 ± 7.69

63.77 ± 8.40

Mean difference (95% CI)

16.01 (5.07 to 26.95)

13.28 (2.79 to 23.77)

14.54 (6.94 to 22.14)

P Value

0.03*

0.04*

0.001*

Ulnar deviation

Preoperative

29.71 ± 12.68

24.17 ± 12.68

27.15 ± 12.28

Postoperative

33.14 ± 7.53

30.50 ± 7.53

31.92 ± 10.39

Mean difference (95% CI)

3.43 (− 8.37 to 15.23)

6.33 (− 4.59 to 17.25)

4.77 (− 3.97 to 13.51)

P Value

0.580

0.422

0.315

Radial deviation

Preoperative

16.17 ± 3.39

15.86 ± 3.44

16 ± 3.42

Postoperative

19 ± 3.21

18.86 ± 4.61

18.92 ± 4.03

Mean difference (95% CI)

2.83 (− 0.91 to 6.57)

3 (− 1.26 to 7.26)

2.92 (0.05 to 5.79)

P Value

0.205

0.226

0.067

VAS pain score

Preoperative

5.6 ± 1.2

5.57 ± 1.4

5.58 ± 1.32

Postoperative

1.4 ± 1.02

1.71 ± 0.88

1.6 ± 0.95

Mean difference (95% CI)

− 4.2 (− 2.82 to − 5.58)

− 3.86 (− 2.64 to − 5.08)

− 3.98 (− 3.06 to − 4.90)

P Value

0.001*

 < 0.001*

 < 0.001*

DASH score

Preoperative

28 ± 3.03

27.29 ± 3.01

27.6 ± 3.04

Postoperative

3.2 ± 0.98

5.57 ± 1.92

4.48 ± 1.98

Mean difference (95% CI)

− 24.80 (–27.59 to − 22.01)

− 21.72 (− 24.36 to − 19.08)

− 23.12 (− 25.17 to − 21.07)

P Value

 < 0.001*

 < 0.001*

 < 0.001*

PRWE score

Preoperative

53.6 ± 8.73

53.71 ± 10.26

53.67 ± 9.66

Postoperative

9 ± 1.41

9.43 ± 2.19

9.25 ± 1.92

Mean difference (95% CI)

− 44.60 (− 52.32 to − 36.88)

− 44.28 (− 52.05 to − 36.51)

− 44.42 (− 49.99 to − 38.83)

P Value

 < 0.001*

 < 0.001*

 < 0.001*

MMWS

Preoperative

56 ± 9.25

61.71 ± 6.20

59.33 ± 8.13

Postoperative

88.8 ± 6.55

83.57 ± 11.94

85.75 ± 10.34

Mean difference (95% CI)

30.60 (26.01 to 35.19)

41.58 (38.83 to 44.33)

37.02 (33.56 to 40.48)

P Value

 < 0.001*

0.001*

 < 0.001*

Grip strength, kg

Preoperative

30.1 ± 2.97

27 ± 3.34

28.25 ± 3.51

Postoperative

41.8 ± 4.83

42.86 ± 4.91

42.41 ± 4.83

Mean difference (95% CI)

11.70 (16.67 to 6.73)

15.86 (11.46 to)

14.16 (10.78 to 17.54)

P Value

0.003*

 < 0.001*

 < 0.001*

  1. Data are presented as mean ± standard deviation
  2. CI confidence interval, DASH Disabilities of the Arm Shoulder and Hand, VAS visual analog scale, PRWE Patient-Rated Wrist Evaluation, MMWS Modified Mayo Wrist Score
  3. *P < 0.05