Table 3.

Multivariate survival analyses of cemented fixed bearing primary cruciate retaining (CR) or posterior stabilized (PS) total knee arthroplasty for osteoarthritis in the Netherlands in 2007–2016

	TKA	Primary	Revisions	Crude model		Adjusted modela
	system	TKAs (n)	(n)	HRcrude	CI	HRadj	CI
Any type of revision
CR (ref)	60,546	1,718	1.0		1.0
PS	73,295	2,659	1.4b	1.4–1.5	1.5b	1.4–1.6
Minor revisionsc
CR (ref)	60,546	333	1.0		1.0
PS	73,295	713	2.0b	1.7–2.2	2.0b	1.7–2.3
Patella additiond
CR (ref)	60,546	402	1.0		1.0
PS	73,295	555	1.3b	1.1–1.5	1.3b	1.1–1.5
Major revisionse
CR (ref)	60,546	911	1.0		1.0
PS	73,295	1,238	1.3b	1.2–1.4	1.3b	1.2–1.4

For abbreviations, see Table 2

^aAdjusted for age at surgery, sex, ASA score, and previous operations.

^bp < 0.001.

^cOnly insert and/or patella exchange (excluding patella addition).

^dOnly patella addition. A patellar component was placed during the primary procedure of 17.7% (n = 10,668) of cruciate retaining TKAs and of 28.5% (n = 20,831) of posterior stabilized TKAs.

^eRevision of at least femur or tibia.