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Table 3 Functional outcomes and complications in all treatment groups

From: Comparison of clinical and radiologic treatment outcomes of Kienböck’s disease

 

NRS at rest

Grip strength dominanta

Grip strength non-dominantb

DASH

Time to return to work in weeks

No. of complicationsc

MMWS

Same operationd

 

Median

SD

Mean (%)

SD

Mean (%)

SD

Mean

SD

Mean

SD

n (%)

Mean

SD

n (%)

STT (n = 27)

1

2

85

23

79

14

44

19

4

1

12 (44)

70

7

24 (89)

RSO (n = 14)

1

1

87

17

66

9

43

19

4

1

3 (21)

71

9

14 (100)

VBG (n = 4)

0

99

5

105

47

28

2

1

1 (25)

78

10

4 (100)

RSO and VBG (n = 2)

3

6

78

54

11

4

1

0

75

14

0

Post-treatment differences

        

STT vs. RSO (P value)

0.88e

0.86f

0.19f

0.59f

0.93f

0.19e

0.93f

0.20e

Estimated clinically relevant difference

2.5g

20

20

20h

2

20

20

 

Sample size calculation

24

44

18

32

12

192

10

 
  1. NRS Numeric Rating Scale for Pain, DASH Disabilities of the Arm, Shoulder, and Hand (DASH) score, MMWS Modified Mayo Wrist Score, STT scaphotrapeziotrapezoid arthrodesis, RSO radial shortening osteotomy, VBG vascularized bone graft, SD standard deviation
  2. aWhen KD affected the dominant side in relation to the non-dominant side
  3. bWhen KD affected the non-dominant side in relation to the dominant side
  4. cAdditional procedures were considered as complications of the first surgery (no hematoma or infections were observed). In the STT group, 12 denervations were later performed, and in the RSO group 2 denervations and 1 total wrist arthrodesis
  5. d“Yes” response to the question about whether they would have the same operation if they had the choice again
  6. eWilcoxon test
  7. f t test
  8. gEstimation based on clinically important differences in the 0 to 10 Numeric Rating Scale-Pain Intensity
  9. hEstimation based on DASH data of non-clinical vs. clinical groups of persons aged 30–49 years (Jester et al. 2010 [41])