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Hip and Knee Arthroplasty - Surface Hippy Guide to Hip Resurfacing

Hip and Knee Arthroplasty - Surface Hippy Guide to Hip Resurfacing

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HIP REPLACEMENT<br />

1/9/1999 <strong>to</strong> 31/12/2007<br />

Primary Partial <strong>Hip</strong> Replacement<br />

Partial <strong>Resurfacing</strong> • Partial articular surface replacement<br />

Unipolar Monoblock • Fixed femoral component <strong>and</strong> large head<br />

Unipolar Modular • Femoral component <strong>and</strong> exchangeable head<br />

Bipolar • Femoral component <strong>and</strong> st<strong>and</strong>ard head combined with a mobile exchangeable<br />

polyethylene insert in a metal shell<br />

Primary Total <strong>Hip</strong> Replacement<br />

Conventional • Femoral component for resected femoral head <strong>and</strong> acetabular component<br />

Total <strong>Resurfacing</strong> • Femoral component for non resected femoral head <strong>and</strong> acetabular component<br />

Thrust Plate • Femoral component for resected femoral head with lateral fixation plate<br />

Revision <strong>Hip</strong> Replacement<br />

• Exchange or removal of one or more components<br />

Table HG1:<br />

Number of <strong>Hip</strong> Replacements by Gender<br />

Type of <strong>Hip</strong><br />

Female Male Total<br />

Replacement N % N % N %<br />

Unipolar Monoblock 12246 74.2 4257 25.8 16503 51.4<br />

Unipolar Modular 5428 73.3 1976 26.7 7404 23.1<br />

Bipolar 5989 73.2 2188 26.8 8177 25.5<br />

Partial <strong>Resurfacing</strong> 1 12.5 7 87.5 8 0.0<br />

Primary Partial <strong>Hip</strong> 23664 73.7 8428 26.3 32092 100.0<br />

Conventional Total 69225 55.4 55779 44.6 125004 92.1<br />

Total <strong>Resurfacing</strong> 2898 27.3 7725 72.7 10623 7.8<br />

Thrust Plate 50 29.1 122 70.9 172 0.1<br />

Primary Total <strong>Hip</strong> 72173 53.1 63626 46.9 135799 100.0<br />

Revision <strong>Hip</strong> 12860 54.1 10922 45.9 23782 100.0<br />

Total 108697 56.7 82976 43.3 191673 100.0<br />

Note: Table entries may not sum <strong>to</strong> <strong>to</strong>tals due <strong>to</strong> rounding.<br />

Figure HG1:<br />

Percentage of Females by Type of <strong>Hip</strong> Replacement <strong>and</strong> Year<br />

18

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