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Hip and Knee Arthroplasty - Surface Hippy Guide to Hip Resurfacing

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Figure HT23:<br />

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

Replacement by Bearing <strong>Surface</strong> <strong>and</strong> Femoral Component Head Size<br />

>28mm (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 />

Ceramic/Ceramic 15862 12502 9620 6902 4513 2499 949 143<br />

Ceramic/Poly 3458 2157 1090 486 172 53 6 0<br />

Metal/Metal 9606 6313 3551 1622 555 93 3 0<br />

Metal/Poly 14526 9304 5444 2752 1092 331 52 8<br />

Table HT28:<br />

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

Replacement by Bearing <strong>Surface</strong> <strong>and</strong> Femoral Component Head Size<br />

(Primary Diagnosis OA excluding Infection)<br />

Bearing <strong>Surface</strong> by<br />

Femoral Component Size<br />

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

Ceramic/Ceramic ≤28mm 1.7 (1.4, 2.1) 2.5 (2.1, 3.0) 2.9 (2.5, 3.5) 3.8 (3.2, 4.4) 4.2 (3.6, 5.0)<br />

Ceramic/Ceramic >28mm 1.1 (0.9, 1.3) 1.6 (1.4, 1.9) 1.9 (1.7, 2.2) 2.5 (2.2, 2.9) 2.6 (2.3, 3.0)<br />

Ceramic/Polyethylene ≤28mm 1.6 (1.4, 1.9) 2.1 (1.9, 2.4) 2.5 (2.2, 2.9) 3.2 (2.9, 3.6) 3.8 (3.3, 4.3)<br />

Ceramic/Polyethylene >28mm 0.6 (0.4, 0.9) 0.9 (0.6, 1.4) 1.3 (0.8, 2.0)<br />

Metal/Metal ≤28mm 1.1 (0.8, 1.6) 1.7 (1.3, 2.3) 2.4 (1.8, 3.1) 2.9 (2.3, 3.7) 4.1 (3.1, 5.6)<br />

Metal/Metal >28mm 1.4 (1.1, 1.6) 2.1 (1.8, 2.4) 2.6 (2.2, 3.1) 3.3 (2.7, 4.2)<br />

Metal/Polyethylene ≤28mm 1.1 (1.0, 1.2) 1.5 (1.4, 1.6) 1.8 (1.7, 2.0) 2.6 (2.4, 2.8) 3.4 (3.1, 3.7)<br />

Metal/Polyethylene >28mm 0.9 (0.8, 1.1) 1.2 (1.0, 1.4) 1.4 (1.2, 1.7) 1.9 (1.3, 2.7)<br />

81

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