Analysis of the following Related Surgeries of Unicompartmental Knee Arthroplasty and Total Knee Arthroplasty: A Taiwanese National Health Insurance Research Database Population-Based Study

Table 1

Baseline characteristics of UKA and TKA patients.

	UKA ()		TKA ()		value
		%		%
Age					<0.0001
<40	2	0.7%	11	0.2%
40~49	13	4.7%	57	1.0%
50~59	58	21.0%	524	8.9%
60~69	89	32.2%	2026	34.3%
>70	114	41.3%	3285	55.6%
Gender					0.037
Female	189	68.5%	4376	74.1%
Male	87	31.5%	1527	25.9%
Comorbidities/complications
Myocardial infarction	1	0.4%	9	0.2%	0.367
Congestive heart failure	0	0.0%	47	0.8%	0.272
Peripheral vascular disease	1	0.4%	0	0.0%	0.045
Cerebrovascular disease	1	0.4%	71	1.2%	0.379
Dementia	2	0.7%	10	0.2%	0.098
Chronic pulmonary disease	7	2.5%	131	2.2%	0.728
Connective tissue disease	1	0.4%	44	0.7%	0.722
Ulcer disease	6	2.2%	132	2.2%	1.000
Mild live disease	1	0.4%	27	0.5%	1.000
Diabetes mellitus (type I and II)	41	14.8%	1047	17.7%	0.219
Diabetes associated with end organ damage	0	0.0%	10	0.2%	1.000
Hemiplegia	1	0.4%	2	0.0%	0.128
Chronic kidney disease/chronic renal failure	2	0.7%	34	0.6%	0.675
Malignant tumor	3	1.1%	26	0.4%	0.138
Moderate to severe liver disease	0	0.0%	1	0.0%	1.000
Metastatic tumor/cancer	0	0.0%	3	0.1%	1.000
Acquired immune deficiency syndrome	0	0.0%	0	0.0%	—

Abbreviations: UKA: unicompartmental knee arthroplasty; TKA: total knee arthroplasty. Significant difference.