A multi-disciplinary program for opioid sparse arthroplasty results in reduced long-term opioid consumption: a four year prospective study

Table 2 Pre- and postoperative opiate use and patient Reported Outcome Measures (PROMs) for knee arthroplasty

	Knees (n = 917)	p-value (comparison to pre-operative)
Opiate use, n (%)^a
pre-operative	232 (25)	-
6 weeks postoperative¹	2 (0.2)	< 0.0001^*
6 months postoperative²	2 (0.2)	< 0.0001^*
1 year postoperative³	2 (0.2)	< 0.0001^*
Oxford Knee Score total, median (IQR)^b
pre-operative	16 (12–22)	-
6 weeks postoperative¹	27 (21–33)	< 0.0001^*
6 months postoperative²	34 (27–40)	< 0.0001^*
1 year postoperative³	35 (27–43)	< 0.0001^*
EQ-5L-5D Health Questionnaire total,
median (IQR)^b
pre-operative	70 (60–80)	-
6 weeks postoperative¹	80 (70–90)	< 0.0001^*
6 months postoperative²	80 (70–90)	< 0.0001^*
1 year postoperative³	80 (70–90)	< 0.0001^*

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