Table 1 Demographics and characteristics of 71 patients undergoing revision surgery for suspected aseptic failure of a hip or knee arthroplasty

 Age, years (mean, SD)

70 (12.5)

 Sex, number (females)

40

 Rheumatic disease

4

 Cardiovascular disease

14

 Diabetes mellitus

7

 Cancer

6

 COPD

4

Biological immunotherapy

2

BMI (mean, SD)

29.9 (5.0)

 Hip

35

 Knee

36

 ≤ 30 days

1

 31–365 days

8

 1–5 years

21

 6–10 years

9

 11–15 years

11

 ≥ 15 years

19

 Aseptic failure

7

 Prosthetic joint infection

1

 Pain

67

 Reduced mobility

38

 Swelling

4

 Redness

2

 Warmth

2