1 Participant Summary

1.1 Sample Size and Completeness by TimePoint

TimePoint Completeness Summary
Outcome TimePoint_F N_nonmissing Percent_Complete
VAS Pre-OP 16 94.1
VAS 3-month FU 14 82.4
VAS 6-month FU 8 47.1
VAS Final FU 12 70.6
Grip Pre-OP 17 100.0
Grip 3-month FU 12 70.6
Grip 6-month FU 11 64.7
Grip Final FU 9 52.9
Key Pre-OP 17 100.0
Key 3-month FU 12 70.6
Key 6-month FU 11 64.7
Key Final FU 9 52.9
Tip Pre-OP 17 100.0
Tip 3-month FU 12 70.6
Tip 6-month FU 11 64.7
Tip Final FU 9 52.9
DASH Pre-OP 17 100.0
DASH 3-month FU 0 0.0
DASH 6-month FU 0 0.0
DASH Final FU 13 76.5
PRWHE Pre-OP 17 100.0
PRWHE 3-month FU 0 0.0
PRWHE 6-month FU 0 0.0
PRWHE Final FU 13 76.5

2 Descriptive Statistics

Descriptive Statistics for Key Variables
Statistic Age VAS Grip Key Tip DASH PRWHE
Means 58.85 2.4 61.41 13.37 12.33 33.35 46.18
SDs 10.21 3.1 22.40 4.42 4.15 22.45 26.32
Hand Dominance Distribution
Hand N
LHD 3
RHD 14
Surgical Laterality Distribution
Laterality N
Left 10
Right 7
Sex Distribution
Sex N
Female 10
Male 7

3 Estimated Marginal Means by Outcome and TimePoint

Results are in the format of estiamte (Standard Error)

Estimated Marginal Means (Mean ± SE) by TimePoint and Outcome
Outcome Pre-OP 3-month FU 6-month FU Final FU
VAS 5.92 (0.48) 0.78 (0.51) 1.18 (0.64) 0.37 (0.54)
Grip 54.00 (5.39) 50.67 (5.63) 70.47 (5.71) 78.85 (5.88)
Key 11.59 (1.05) 11.86 (1.14) 16.02 (1.16) 16.45 (1.22)
Tip 12.06 (1.01) 10.27 (1.10) 14.21 (1.12) 14.41 (1.18)
DASH 46.32 (4.09) NA NA 16.33 (4.63)
PRWHE 62.79 (4.34) NA NA 23.83 (4.87)

4 Outcome Trajectories

5 Proportional Strength Changes Relative to Pre-OP

6 Mixed-Effects Model Results

7 Mixed-Effects Model Results

7.1 VAS

VAS Model Pairwise Contrasts with Effect Sizes
contrast estimate SE df t.ratio p.value Effect_Size
(3-month FU) - (Pre-OP) -5.14 0.57 33.35 -9.08 0 -1.66
(6-month FU) - (Pre-OP) -4.74 0.68 33.99 -6.93 0 -1.53
Final FU - (Pre-OP) -5.55 0.60 33.88 -9.30 0 -1.79

7.2 Grip Strength

Grip Strength Model Pairwise Contrasts (Raw Scale)
contrast estimate SE df t.ratio p.value CI_lower CI_upper Effect_Size
(3-month FU) - (Pre-OP) -3.33 3.33 29.46 -1.00 0.62 -9.85 3.19 -0.15
(6-month FU) - (Pre-OP) 16.47 3.46 29.57 4.76 0.00 9.69 23.24 0.74
Final FU - (Pre-OP) 24.85 3.74 29.66 6.65 0.00 17.52 32.17 1.11
Grip Strength Ratio Scale Model (Log-Transformed)
contrast estimate SE df t.ratio p.value ratio lower.CL upper.CL proportional_change
(3-month FU) - (Pre-OP) -0.05 0.08 29.66 -0.62 0.84 0.95 0.82 1.11 -4.6
(6-month FU) - (Pre-OP) 0.34 0.08 29.83 4.26 0.00 1.41 1.20 1.64 40.5
Final FU - (Pre-OP) 0.46 0.09 29.96 5.37 0.00 1.59 1.34 1.88 59.0

7.3 Key Pinch

Key Pinch Model Pairwise Contrasts (Raw Scale)
contrast estimate SE df t.ratio p.value CI_lower CI_upper Effect_Size
(3-month FU) - (Pre-OP) 0.27 0.88 29.89 0.31 0.96 -1.46 2.00 0.06
(6-month FU) - (Pre-OP) 4.43 0.92 30.11 4.83 0.00 2.63 6.22 1.00
Final FU - (Pre-OP) 4.86 0.99 30.30 4.92 0.00 2.92 6.80 1.10
Key Pinch Ratio Scale Model (Log-Transformed)
contrast estimate SE df t.ratio p.value ratio lower.CL upper.CL proportional_change
(3-month FU) - (Pre-OP) 0.03 0.08 30.01 0.33 0.96 1.02 0.88 1.19 2.5
(6-month FU) - (Pre-OP) 0.40 0.08 30.27 5.05 0.00 1.49 1.28 1.74 49.0
Final FU - (Pre-OP) 0.40 0.09 30.49 4.71 0.00 1.50 1.26 1.77 49.5

7.4 Tip Pinch

Tip Pinch Model Pairwise Contrasts (Raw Scale)
contrast estimate SE df t.ratio p.value CI_lower CI_upper Effect_Size
(3-month FU) - (Pre-OP) -1.79 0.88 29.97 -2.03 0.13 -3.51 -0.07 -0.43
(6-month FU) - (Pre-OP) 2.15 0.91 30.21 2.35 0.07 0.36 3.94 0.52
Final FU - (Pre-OP) 2.35 0.99 30.42 2.38 0.06 0.42 4.28 0.57
Tip Pinch Ratio Scale Model (Log-Transformed)
contrast estimate SE df t.ratio p.value ratio lower.CL upper.CL proportional_change
(3-month FU) - (Pre-OP) -0.15 0.09 30.27 -1.57 0.29 0.86 0.72 1.04 -13.7
(6-month FU) - (Pre-OP) 0.24 0.10 30.60 2.44 0.06 1.27 1.05 1.53 26.8
Final FU - (Pre-OP) 0.24 0.10 30.88 2.24 0.09 1.27 1.03 1.55 26.6

7.5 DASH

DASH Model Pairwise Contrast with Effect Size
contrast estimate SE df t.ratio p.value Effect_Size
Final FU - (Pre-OP) -29.99 4.84 13.66 -6.2 0 -1.34

7.6 PRWHE

PRWHE Model Pairwise Contrast with Effect Size
contrast estimate SE df t.ratio p.value Effect_Size
Final FU - (Pre-OP) -38.96 4.85 13.47 -8.03 0 -1.48

8 Notes