Table 3. Comparison of reasons for ED encounters within 90 days after TJA between discharged and readmitted patients.

ED: emergency department, TJA: total joint arthroplasty

Reasons for visit	Readmitted (%) n=53	Discharged (%) n=275	Total reasons (%) n=328
Cardiac	9 (17.0)	6 (2.2)	15 (4.6)
Cellulitis	5 (9.4)	3 (1.1)	8 (2.4)
Complaints unrelated to surgery	3 (5.7)	51 (18.5)	54 (16.5)
Complication of surgery	1 (1.9)	14 (5.1)	15 (4.6)
Fall	0	13 (4.7)	13 (4.0)
Fever	3 (5.7)	6 (2.2)	9 (2.7)
Gastrointestinal	5 (9.4)	12 (4.4)	17 (5.2)
Hematological	6 (11.3)	3 (1.1)	9 (2.7)
Infection	4 (7.5)	5 (1.8)	9 (2.7)
Neurological	1 (1.9)	4 (1.5)	5 (1.5)
Other	1 (1.9)	9 (3.3)	10 (3.0)
Periprosthetic dislocation	0	1 (0.4)	1 (0.3)
Periprosthetic fracture	1 (1.9)	0	1 (0.3)
Pulmonary	5 (9.4)	8 (2.9)	13 (4.0)
Renal	6 (11.3)	5 (1.8)	11 (3.4)
Sepsis	2 (3.8)	0	2 (0.6)
Substance use/abuse	1 (1.9)	5 (1.8)	6 (1.8)
Surgical site pain	0	100 (36.4)	100 (30.5)
Swelling	0	16 (5.8)	16 (4.9)
Wound check	0	14 (5.1)	14 (4.3)