Table 5.

The incidence of postoperative complications after primary or revision total knee arthroplasty in octogenarians

	Primary	Revision	p value
Cardiac	4 (1.7%)	2 (4.9%)	0.224
Pulmonary	6 (2.6%)	3 (7.3%)	0.139
Nephrotic	2 (0.9%)	0 (0%)	1.000
Gastrointestinal, hepatic	3 (1.3%)	1 (2.4%)	0.482
Endocrinologic	0	1 (2.4%)	0.151
Cerebral	1 (0.4%)	1 (2.4%)	0.279
Delirium	17 (7.4%)	6 (14.6%)	0.131
Urologic	13 (5.6%)	1 (2.4%)	0.702