Table 2.

Effect of age on functional scores postoperatively

Reference Number	First Author	Year of Publication	Number of participants	Functional score comparison	Age groups	Outcome
16	Zicat	1993	90	No difference	≥80, 65–69	Hospital for Special Surgery Score
17	Adam	1994	107	No difference	≥75, <75	Knee Score
21	Hilton	2004	130	No difference	80–90, 60–70	Knee Society Score
23	Biau	2006	42	No difference	≥85, 65–75	Knee Score
24	Clement	2011	598	No difference	80–92, 65–75	Oxford Knee Score
27	Maempel	2015	2050	No difference	≥80, < 75	Knee Society Score
28	Kennedy	2013	3192	Geriatric worse	≥80, <79	Oxford Knee Score
29	Kuo	2015	150	No Difference	≥80, 65–74	Knee Society Score
35	Laskin	1999	1634	Geriatric worse	≥85, 62–85	Knee society score
36	Hernandez	2006	218	No difference	75–98, <75	Hospital for Special Surgery Score
37	Williams	2013	238	No difference	≥85, 55–84	Oxford knee score