Table 2: Sensitivity of the culture of the sonication fluid versus the culture of periprosthetic tissue.
|
|
Sensitivity of sonication fluid culture |
Sensitivity of periprosthetic tissue culture |
P - value |
|
Overall |
81.25% |
56.25% |
0.043 |
|
Type of infection |
|
|
|
|
Early |
100% |
50% |
0.479 |
|
Delayed |
66.67% |
50% |
0.479 |
|
Late |
87.5% |
62.5% |
0.288 |
|
Site of infection |
|
|
|
|
Hip |
90.91% |
63.63% |
0.114 |
|
Knee |
66.67% |
55.55% |
0.479 |
|
Age |
|
|
|
|
< 60 |
100% |
100% |
1.000 |
|
> 60 |
75% |
41.67% |
0.043 |
|
Gender |
|
|
|
|
Male |
83.33% |
50% |
0.134 |
|
Female |
80% |
60% |
0.289 |
|
Hypertension |
|
|
|
|
Yes |
66.67% |
33.33% |
0.114 |
|
No |
100% |
85.71% |
0.479 |
|
Diabetes mellitus |
|
|
|
|
Yes |
100% |
36.37% |
0.041 |
|
No |
76.19% |
66.67% |
0.683 |
|
Dyslipidemia |
|
|
|
|
Yes |
57.14% |
57.14% |
1.000 |
|
No |
88% |
56% |
0.114 |
|
Metabolic syndrome |
|
|
|
|
Yes |
100% |
42.86% |
0.137 |
|
No |
72% |
56% |
0.289 |
|
BMI |
|
|
|
|
< 25 |
75% |
75% |
1.000 |
|
> 25 |
83.33% |
50% |
0.133 |
|
25 – 30 |
80% |
60% |
0.479 |
|
> 30 |
85.71% |
42.85% |
0.041 |
|
Reason for arthroplasty |
|
|
|
|
Primary OA |
77.78% |
44.44% |
0.041 |
|
Trauma |
83.33% |
83.33% |
1.000 |
|
Use of cement |
|
|
|
|
Cemented arthroplasties |
83.33% |
66.67% |
0.683 |
|
Uncemented arthroplasties |
80% |
50% |
0.041 |