Table 4.

Cumulative 8-year revision rates of cemented fixed bearing total knee arthroplasties for osteoarthritis with cruciate retaining (CR) or posterior stabilized (PS) knee system, stratified for sex, age, and ASA score, in the Netherlands in 2007–2016 (n = 133,841)

	CR TKA system		PS TKA system
Sex, age	8-year revision		8-year revision
ASA-score	n	rate (%) (CI)	n	rate (%) (CI)
Male, < 60 years
ASA I	1,561	7.2 (5.6–9.2)a	1,753	12.1 (9.8–15.0)a
ASA II	2,105	7.8 (6.0–10.3)a	2,605	14.4 (11.4–18.1)a
ASA III–IV	236	6.1 (3.3–11.3)	347	13.0 (7.7–22.2)
Total	4,015	7.2 (6.1–8.5)a	4,842	12.7 (11.1–14.5)a
Male, 60–69 years
ASA I	1,975	2.7 (2.0–3.7)a	2,161	5.6 (4.4–7.2)a
ASA II	5,127	4.3 (3.5–5.2)a	6,408	6.5 (5.6–7.7)a
ASA III–IV	890	4.9 (3.3–7.5)	1,057	7.6 (5.5–10.6)
Total	8,193	4.0 (3.4–4.7)a	9,835	6.3 (5.6–7.1)a
Male, ≥ 70 years
ASA I	1,091	3.4 (2.0–5.6)	1,310	5.5 (4.1–7.5)
ASA II	5,766	2.3 (1.9–2.9)	6,765	3.4 (2.8–4.2)
ASA III–IV	1,546	2.2 (1.5–3.4)	2,034	4.0 (2.9–5.5)
Total	8,621	2.6 (2.2–3.2)a	10,365	4.0 (3.4–4.6)a
Female, < 60 years
ASA I	1,717	8.3 (6.7–10.4)	2,124	8.7 (7.1–10.7)
ASA II	3,444	7.5 (6.3–8.9)	4,579	9.6 (8.3–11.0)
ASA III–IV	533	8.9 (4.4–18.1)	728	11.9 (8.7–16.4)
Total	5,876	8.2 (7.2–9.3)	7,648	9.4 (8.5–10.5)
Female, 60–69 years
ASA I	2,690	5.7 (4.6–7.2)	3,070	5.4 (4.2–7.0)
ASA II	9,030	4.0 (3.5–4.7)a	11,011	7.2 (6.2–8.3)a
ASA III–IV	1,410	5.9 (4.3–8.1)	1,916	7.9 (6.0–10.5)
Total	13,499	4.7 (4.2–5.3)	16,400	6.6 (6.0–7.3)
Female, ≥ 70 years
ASA I	2,259	2.0 (1.4–2.8)a	2,524	4.4 (3.5–5.6)a
ASA II	14,016	3.0 (2.7–3.5)a	16,562	4.0 (3.6–4.5)a
ASA III–IV	3,280	3.1 (2.4–4.0)	4,120	3.8 (3.0–4.7)
Total	20,187	2.9 (2.6–3.3)a	23,984	4.0 (3.6–4.3)a

TKA: total knee arthroplasty.

^ap < 0.05 for PS compared with CR TKAs.