Table 1.
Survey of the incidence of mix & match from contributing members to the International Society of Arthroplasty Registries (ISAR)
| Registry | Past | Present |
|---|---|---|
| AOANJRR (Australia) | Yes | Yes, but less than previously |
| DHR/DKR (Denmark) | Yes | Yes |
| EPRD (Germany) | Yes | 12% Hips |
| KP National Implant Registries (USA) | Yes | 2–4% hips, 1% shoulders |
| FAR (Finland) | Yes | Yes, but less than previously |
| LROI (Netherlands) | Yes | 8% |
| MARCQI (Michigan, USA) | Yes | 1.2% hips |
| NZOA (New Zealand) | Yes | Yes, but less than previously |
| NJR (England and Wales) | Yes (hips, shoulders, patellae) | Yes, but less than previously |
| NAR (Norway) | Yes | > 10 % |
| RIAP (Italy) | 13% hips | 15% hips |
| RIPO (Italy) | Yes | 4 % hips and some patellae |
| SHAR (Sweden) | Yes | Yes |
Source: Performed by Keith Tucker, January 2020.