Table 6.

Hand strength

	Mean strength (SD)		Difference in change over time*
	Open surgery	Endoscopic surgery	Mean strength (95% CI)	P value
Grip
Baseline	31.2 (11)	32.6 (14)	Reference
3 weeks	17.4 (9)	20.7 (10)	-2.1 (-4.4 to 0.2)	0.073
6 weeks	24.6 (10)	26.8 (11)	-1.2 (-3.5 to 1.1)	0.30
3 months	29.9 (11)	31.5 (11)	-0.5 (-2.8 to 1.8)	0.69
Pinch
Baseline	5.0 (2.0)	5.7 (2.4)	Reference
3 weeks	4.3 (1.9)	5.2 (2.2)	-0.4 (-0.9 to 0.1)	0.095
6 weeks	5.3 (1.8)	6.2 (2.1)	-0.4 (-0.9 to 0.04)	0.070
3 months	6.0 (1.8)	6.7 (2.2)	-0.3 (-0.8 to 0.2)	0.15

^*Mixed model analysis adjusting for age, sex, dominance of the operated hand, and preoperative grip or pinch strength