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Hip and Knee Arthroplasty - Surface Hippy Guide to Hip Resurfacing

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Table HR8:<br />

Outcomes of ‘Revision of Known Primary’ Conventional Total <strong>Hip</strong><br />

Replacement (excluding Infection)<br />

Primary Total<br />

<strong>Hip</strong> Revisions<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 />

Minor 113 804 2039 5.5 (4.57, 6.66)<br />

Major Partial 158 1628 3712 4.3 (3.62, 4.97)<br />

Major Total 11 184 356 3.1 (1.54, 5.53)<br />

Total 282 2616 6107 4.6 (4.09, 5.19)<br />

Note:<br />

Excluding revisions where no minor or major femoral/acetabular components have been inserted.<br />

Figure HR2:<br />

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

Conventional Total <strong>Hip</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 />

Minor 804 604 456 311 183 87 30 7<br />

Major Partial 1628 1151 793 503 291 158 63 11<br />

Major Total 184 116 72 45 25 12 5 2<br />

Table HR9:<br />

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

Conventional Total <strong>Hip</strong> Replacement (excluding Infection)<br />

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

Minor 8.8 (7.0, 11.1) 11.8 (9.6, 14.4) 16.1 (13.3, 19.3) 19.4 (16.1, 23.3)<br />

Major Partial 7.2 (6.0, 8.7) 9.9 (8.4, 11.7) 12.1 (10.3, 14.1) 14.1 (11.9, 16.7)<br />

Major Total 5.1 (2.6, 10.0) 6.9 (3.7, 12.5) 8.2 (4.5, 14.7)<br />

108

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