Table 3. Results of Plateau Analysis for All Questionnaires and Functional Tests.
| Score Change 1†, t (p)‡ | Score Change 2, t (p) | Score Change 3, t (p) | Score Change 4, t (p) | |
|---|---|---|---|---|
| MHQ | ||||
| Overall hand function | 4.71 (<0.001) | 0.85 (0.40)* | 1.27 (0.21)* | −0.39 (0.70)* |
| Activities of daily living | 2.93 (0.005) | −0.20 (0.85)* | 1.58 (0.12)* | −1.38 (0.18)* |
| Work | 0.49 (0.65)* | 4.09 (<0.001) | 0.78 (0.44)* | −1.15 (0.48)* |
| Pain | −4.13 (<0.001) | −0.64 (0.53)* | 0.38 (0.71)* | 0.08 (0.94)* |
| Aesthetic | 1.03 (0.31)* | 1.61 (0.92)* | 0.85 (0.40)* | −1.70 (0.09)* |
| Satisfaction | 4.74 (<0.001) | 3.39 (<0.001) | 0.27 (0.79)* | −0.92 (0.39)* |
| Overallscore | 4.30 (<0.001) | 2.86 (0.005) | 0.82 (0.42)* | −1.19 (0.24)* |
| CTQ | ||||
| Symptom severity score | −5.48 (<0.001) | −2.19 (0.03)* | −0.88 (0.39)* | −0.28 (0.78)* |
| Functional status score | −3.00 (0.005) | −1.87 (0.07)* | −0.62 (0.54)* | −0.37 (0.71)* |
| DASH disability score | −2.24 (0.03)* | −3.02 (0.005) | −0.08 (0.94)* | −0.86 (0.40)* |
| Functional measures | ||||
| 2PD, ulnar border SF | 0.15 (0.88)* | −2.03 (0.05)* | 0.00 (1.00)* | 0.59 (0.56)* |
| SWM, ulnar border SF | −1.55 (0.13)* | −1.81 (0.08)* | −1.78 (0.08)* | −0.86 (0.40)* |
| Key pinch | 1.43 (0.16)* | 0.95 (0.35)* | 1.90 (0.07)* | −0.61 (0.53)* |
| Grip strength | 1.45 (0.16)* | 1.40 (0.17)* | 0.22 (0.83)* | 1.64 (0.11)* |
MHQ Michigan Hand Questionnaire; CTQ Carpal Tunnel Questionnaire; DASH, Disabilities of the Arm, Shoulder, and Hand questionnaire; 2PD, two-point discrimination; SWM, Semmes-Weinstein monofilament testing; SF, small finger.
Score changes are not significantly different from 0. Transition from boxes marked with an asterisk and those not marked with an asterisk indicates a plateau.
Score change indicates the difference in score between each time point, and represents slope on our plots in Figures 2 and 3. Score change 1 is the difference in score between preoperatively and 6 weeks postoperatively. Score change 2 is between 6 weeks postoperatively and 3 months postoperatively. Score change 3 is between 3 months postoperatively and 6 months postoperatively. Score change 4 is between 6 months postoperatively and 1 year postoperatively.
Results are considered statistically significant at p < 0.0125 to allow for a Bonferroni correction accounting for the multiple comparisons.