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Hip and Knee Arthroplasty - Surface Hippy Guide to Hip Resurfacing

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Table HT21:<br />

Primary Conventional Total <strong>Hip</strong> Replacement requiring Revision by<br />

Fixation (Primary Diagnosis OA excluding Infection)<br />

Fixation<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 />

Cemented 247 13167 49629 0.5 (0.44, 0.56)<br />

Cementless 1336 59578 174993 0.8 (0.72, 0.81)<br />

Hybrid 640 37227 120137 0.5 (0.49, 0.58)<br />

Total 2223 109972 344760 0.6 (0.62, 0.67)<br />

Figure HT16:<br />

Cumulative Percent Revision of Primary Conventional Total <strong>Hip</strong><br />

Replacement by Fixation (Primary Diagnosis OA excluding Infection)<br />

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

Cemented 13167 11612 9898 8129 6233 4290 2302 680<br />

Cementless 59578 47627 36844 26973 18301 10876 4669 1069<br />

Hybrid 37227 30591 24688 19010 13607 8702 4230 1124<br />

Table HT22:<br />

Yearly Cumulative Percent Revision of Primary Conventional Total <strong>Hip</strong><br />

Replacement by Fixation (Primary Diagnosis OA excluding Infection)<br />

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

Cemented 0.8 (0.6, 0.9) 1.2 (1.0, 1.4) 1.5 (1.3, 1.8) 2.5 (2.2, 2.8) 3.0 (2.6, 3.5)<br />

Cementless 1.4 (1.3, 1.5) 1.9 (1.8, 2.1) 2.3 (2.2, 2.5) 3.1 (2.9, 3.3) 3.9 (3.5, 4.2)<br />

Hybrid 0.9 (0.8, 1.1) 1.3 (1.2, 1.5) 1.6 (1.5, 1.8) 2.3 (2.1, 2.5) 3.0 (2.7, 3.3)<br />

75

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