Table 3.

Michigan Hand Outcome Questionnaire Data^*

Domain	Preoperatively	12 months	Intermediate-term	Effect Size†
Overall	43 ± 12	63 ± 23	62 ± 19	1.2
Function	54 ± 17	65 ± 18	69 ± 14	1.0
ADL	53 ± 19	70 ± 25	70 ± 20	0.8
Work	53 ± 24	66 ± 25	58 ± 28	0.2
Pain	66 ± 14	33 ± 36	31 ± 25	1.7
Aesthetics	32 ± 18	58 ± 27	44 ± 29	0.5
Satisfaction	29 ± 13	51 ± 35	62 ± 22	1.8

ADL: activities of daily living

^*The Michigan Hand Outcomes Questionnaire domains are based on a scale of 0 to 100. For all domains except Pain, a higher score indicates better performance. For the Pain domain, a lower score indicates less pain.

^†The effect size is defined as (mean2 - mean1)/(SD of difference in means). An effect size of 0.2 is small, 0.5 is medium, and 0.8 is large.