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Table 1 Comparison of general data of patients with recurrent infection after prosthesis removal and antibiotic bone cement spacer implantation

From: Risk factors of reinfection after prosthesis removal and antibiotic bone cement spacer implantation for the treatment of periprosthetic joint infection

 

Risk factors

No reinfection group (N = 31)

Reinfection group (N = 9)

p value

Patient characteristics

Age (years)

   

 ≥ 65

23 (74%)

6 (67%)

–

 < 65

8 (26%)

3 (33%)

0.6861

Female

17 (54%)

5 (56%)

0.9999

Smoking history

5 (16%)

0 (0%)

0.5696

Alcohol history

6 (19%)

0 (0%)

0.3065

ASA grade

   

 1–2

17 (55%)

6 (67%)

–

 3–4

13 (42%)

3 (33%)

0.7110

aCCI score

   

 < 3

19 (61%)

4 (44%)

–

 ≥ 3

12 (39%)

5 (56%)

0.4561

Medical conditions

Diabetes

5 (16%)

2 (22%)

0.6446

Hypertension

10 (32%)

1 (11%)

0.3994

Coronary heart disease

4 (13%)

1 (11%)

0.9999

Rheumatoid arthritis

1 (3%)

0 (0%)

0.9999

Microbiology

Culture negative

12 (39%)

4 (44%)

0.9999

Gram-positive bacteria

10 (32%)

4 (44%)

0.6935

Gram-negative bacteria

4 (13%)

1 (11%)

0.9999

Fungi

1 (3%)

0 (0%)

0.9999

Co-infection

4 (13%)

0 (0%)

0.5573

Other risk factors

Duration of infection

   

 < 3 Months

9 (29%)

6 (67%)

–

 ≥ 3 Months

22 (71%)

3 (33%)

0.0572

History of prior Infection

2 (6%)

1 (11%)

0.5450

History of prior revision surgery

1 (3%)

4 (44%)

0.0061

Presence of sinus tract

8 (26%)

6 (67%)

0.0444

  1. ASA grade: American Society of Anesthesiologists Physical Status Classification System, aCCI score: Age-adjusted Charlson Comorbidity Index, Gram-positive bacteria: Staphylococcus aureus, Staphylococcus haemolyticus, Staphylococcus epidermidis; Gram-negative bacteria: Escherichia coli, Klebsiella pneumonia, Pseudomonas aeruginosa, Enterobacter cloacae; Fungi: Candida parapsilosis; Co-infection: Pseudomonas putida andMobility baumannii, Staphylococcus aureus and Mobilus baumannii and Calcoaceticus complex, Pseudomonas aeruginosa and Staphylococcus epidermidis, Staphylococcus epidermidis and Rhizobium radiobacter