Auricular Acupressure for Managing Postoperative Pain and Knee Motion in Patients with Total Knee Replacement: A Randomized Sham Control Study

Table 2

Changes in pain scores between the groups over time.

	All	Acupressure	Sham control	P value
	(𝑛=62)	(𝑛=31)	(𝑛=31)
	Mean ±SD	Mean ±SD	Mean ±SD
VAS
Baseline	58.66±20.35	57.00±17.83	60.32±22.77	.525
Posttest 1	46.02±18.32	46.87±17.05	45.16±19.77	.717
Posttest 2	36.77±16.02	36.45±13.74	37.10±18.25	.876
Posttest 3	27.58±13.96	27.42±12.24	27.74±15.70	.928
SF-MPQ
Baseline	12.85±5.93	12.26±5.79	13.45±6.11	.433
Posttest	5.18±3.84	5.16±4.08	5.19±3.66	.974
Pain PPI
Baseline	2.95±1.02	2.74±.89	3.16±1.10	.104
Posttest	1.34±.63	1.23±.50	1.45±.72	.157

VAS: visual analog scale for pain; SF-MPQ: Short-Form McGill Pain Questionnaire; Pain PPI: present pain intensity score of SF-MPQ.