Effectiveness of Ultrasound-Guided Canal Adductor Blockade for Chronic Pain and Functioning in Knee Osteoarthritis: A Prospective Longitudinal Observational Study

Table 1

Maximal and minimal pain intensity in the blocked knee at baseline and 1 month after adductor canal blockade and their differences with estimated adjusted absolute effect size ().

	Assessment time	Mean (SD)	Effect size^+	95% CI	value
	B/L	8.13 (1.22)
	1 M	4.2 (2.20)	-3.93	-4.46--3.41	<0.001
	B/L	3.32 (2.11)
	1 M	1.40 (1.52)	-1.92	-2.38--1.46	<0.001

NRS: numeric rating scale; B/L: baseline; 1 M: 1 month after adductor canal blockade; ⁺age-, sex-, and BMI-adjusted effect size, as estimated by the linear mixed effects model.