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Hip and Knee Arthroplasty - Surface Hippy Guide to Hip Resurfacing

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Cement in Primary Total <strong>Knee</strong> Replacement<br />

Table C9:<br />

Cemented Primary Total <strong>Knee</strong> Replacement requiring Revision by<br />

Cement Type<br />

Antibiotic Status<br />

Femoral - Tibia<br />

Number<br />

Revised<br />

Total<br />

Number<br />

Observed<br />

Componen<br />

t Years<br />

Revisions per<br />

100 Observed<br />

Component<br />

Years<br />

Exact 95%<br />

CI<br />

Antibiotic - Antibiotic 1273 60602 161047 0.8 (0.75, 0.84)<br />

Antibiotic - Plain 7 435 1595 0.4 (0.18, 0.90)<br />

Plain - Antibiotic 10 238 787 1.3 (0.61, 2.34)<br />

Plain - Plain 561 18325 69184 0.8 (0.75, 0.88)<br />

Total 1851 79600 232613 0.8 (0.76, 0.83)<br />

Table C10:<br />

Cemented Primary Total <strong>Knee</strong> Replacement requiring Revision by<br />

Cement Type<br />

Antibiotic Status<br />

Number<br />

Revised<br />

Total<br />

Number<br />

Observed<br />

Component<br />

Years<br />

Revisions per<br />

100 Observed<br />

Component<br />

Years<br />

Exact 95%<br />

CI<br />

Plain Cement 561 18325 69184 0.8 (0.75, 0.88)<br />

Antibiotic Cement 1290 61275 163429 0.8 (0.75, 0.83)<br />

Total 1851 79600 232613 0.8 (0.76, 0.83)<br />

Table C4:<br />

Cumulative Percent Revision of Cemented Primary Total <strong>Knee</strong><br />

Replacement requiring Revision by Cement Type<br />

Number at Risk 0 Yr 1 Yr 2 Yrs 3 Yrs 4 Yrs 5 Yrs 6 Yrs 7 Yrs<br />

Plain Cement 18325 16072 13606 11239 8884 6012 3284 931<br />

Antibiotic Cement 61275 46939 34577 23904 15125 8802 3723 831<br />

188

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