Periprosthetic joint infections at a teaching hospital in 1990–2007

Article Figures & Tables

Table 1

Risk factors for periprosthetic joint infections in total hip arthroplasty patients with deep infections, n = 34

Risk factor	No. patients
Patient comorbidities
Rheumatoid arthritis	7
ASA score > 2	6
Obesity (BMI > 35)	5
Diabetes	5
Neoplasm	4
History of joint surgery	3
Osteopetrosis	1
Post-trauma	1
Avascular necrosis	1
Psoriasis	1
Alcoholism	1
Immunosupression	1
Malnutrition	1
Postoperative complications
Hospital stay > 5 days	13
Wound drainage > 5 days	12
Hematoma	9
Allogenic transfusion	7
Myocardial infarction	1
Urinary tract infection	1
Other factors
Surgical drain > 24 hours	6
Urinary catheterization > 48 hours	4

Table 2

Risk factors for periprosthetic joint infections in total knee arthroplasty patients with deep infections, n = 15

Risk factor	No. patients
Patient comorbidities
History of joint surgery	4
Diabetes	3
Immunosuppression	3
ASA score > 2	2
Obesity (BMI > 35)	1
Rheumatoid arthritis	1
Postoperative complications
Hospital stay > 5 days	7
Wound drainage > 5 days	4
Allogenic transfusion	2
Hematoma	2
Other factors
Surgical drain > 24 hours	3
Urinary catheterization > 48 hours	2

Table 3

Deep infections in total hip and knee arthroplasty

Procedure	Period 1990–2002	Period 2003–2007	Total	p value
Primary total hip arthroplasty, no.	1351	1052	2403
Deep infection, no. (%)	34 (2.5)	15 (1.5)	49 (2.0)	0.06
Primary total knee arthroplasty, no.	659	561	1220
Deep infection, no. (%)	13 (2.0)	6 (1.1)	19 (1.6)	0.20