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Hip and Knee Arthroplasty - Surface Hippy Guide to Hip Resurfacing

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Table KR10:<br />

Outcome of ‘Revision of Known Primary’ Unicompartmental <strong>Knee</strong><br />

Replacement (excluding Infection)<br />

Procedure<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 />

Prim UKR <strong>to</strong> Rev TKR 86 1251 2856 3.0 (2.41, 3.72)<br />

Prim UKR <strong>to</strong> Rev UKR 64 281 689 9.3 (7.16, 11.87)<br />

Total 150 1532 3545 4.2 (3.58, 4.97)<br />

Figure KR3:<br />

Cumulative Percent Revision of ‘Revision of Known Primary’<br />

Unicompartmental <strong>Knee</strong> Replacement (excluding Infection)<br />

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

Prim UKR <strong>to</strong> Rev TKR 1251 927 633 400 211 88 17 1<br />

Prim UKR <strong>to</strong> Rev UKR 281 207 140 93 61 36 13 3<br />

Table KR11:<br />

Yearly Cumulative Percent Revision of ‘Revision of Known Primary’<br />

Unicompartmental <strong>Knee</strong> Replacement (excluding Infection)<br />

CPR 1 Yr 2 Yrs 3 Yrs 5 Yrs 7 Yrs<br />

Prim UKR <strong>to</strong> Rev TKR 2.8 (2.0, 4.1) 6.8 (5.3, 8.7) 9.3 (7.5, 11.6) 12.9 (10.0, 16.6)<br />

Prim UKR <strong>to</strong> Rev UKR 12.8 (9.3, 17.6) 22.9 (18.0, 28.9) 26.8 (21.3, 33.3) 29.5 (23.6, 36.5)<br />

177

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