Table 2.

Profile of top 20 countries in global output in arthroplasty research.

S.No	Name of the country	TP			%TP
		2002–11	2012–21	2002–21	2002–11	2012–21	2002–21
1	USA	6,361	15,247	21,608	32.19	34.33	33.67
2	U.K.	2,704	4,397	7,101	13.68	9.90	11.07
3	China	701	4,352	5,053	3.55	9.80	7.87
4	Germany	1,780	3,238	5,018	9.01	7.29	7.82
5	Canada	1,060	1,896	2,956	5.36	4.27	4.61
6	Japan	851	2,090	2,941	4.31	4.71	4.58
7	France	841	1,738	2,579	4.26	3.91	4.02
8	Italy	660	1,669	2,329	3.34	3.76	3.63
9	Australia	599	1,617	2,216	3.03	3.64	3.45
10	South Korea	454	1,351	1,805	2.30	3.04	2.81
11	Netherlands	571	1,232	1,803	2.89	2.77	2.81
12	Switzerland	511	1,221	1,732	2.59	2.75	2.70
13	Spain	356	951	1,307	1.80	2.14	2.04
14	Sweden	463	735	1,198	2.34	1.66	1.87
15	Denmark	294	850	1,144	1.49	1.91	1.78
16	India	159	713	872	0.80	1.61	1.36
17	Austria	259	608	867	1.31	1.37	1.35
18	Turkey	216	651	867	1.09	1.47	1.35
19	Belgium	273	579	852	1.38	1.30	1.33
20	Taiwan	219	447	666	1.11	1.01	1.04
	Total of 20 countries	19,332	45,582	64,914	97.84	102.64	101.16
	Global total	19,759	44,409	64,168	100.00	100.00	100.00
	Share of top 20 countries in global total	97.84		101.16			0.16

TP: Total Publications; %TP: Percentage of total publications.