Comparison of implant related complications amongst patients with opioid use disorder and non-users following total knee arthroplasty

Table 3 Comparison of implant related complications 2-years following primary total knee arthroplasty in opioid abusers and non-opioid abusers

	OUD	NOU	OR	95%CI	P-value
Revision of knee replacement total (all components)	0.42%	0.20%	2.07	1.11–3.84	b
Infection and wound1	6.55%	3.51%	1.92	1.70–2.18	b
Peri-prosthetic fracture around prosthesis	0.72%	0.39%	1.83	1.16–4.79	b
Dislocation of prosthetic joint	2.27%	1.36%	1.68	1.37–2.05	b
Mechanical loosening	1.93%	1.46%	1.33	1.08–1.62	0.006
Broken prosthetic joint implant	0.67%	0.60%	1.11	0.81–1.54	0.509
Other complication due to other internal orthopedic device implant	2.77%	0.99%	2.83	2.28–3.51	b
Other mechanical complication of other internal orthopedic device	3.05%	1.33%	2.33	1.92–2.82	b
Other mechanical complication of prosthetic joint implant	2.46%	1.41%	1.76	1.45–2.13	b
Total	20.84%	11.25%	2.07	1.93–2.23	b

^bP < 0.001;

¹Assessed within 90 d. OUD: Opioid abusers; NUD: Non-opioid abusers; OR: Odds-ratio; 95%CI: 95% Confidence interval.