Profile of revision patients.
| Case | Diagnosis | Age/sex | Years from THR to Revision | Type of Prosthesis | Type of Alloy | Wear | Black Particles | PMMA Particles |
|---|---|---|---|---|---|---|---|---|
| 1 | SOA | 71 F | 19 | Six-Ti | TiA16V4 | + | – | + |
| 2 | SOA | 69 F | 24 | Charnley | stainless | – | – | – |
| 3 | SOA | 72 M | 15 | Six-Ti | TiA16V4 | – | – | – |
| 4 | SOA | 64 F | 10 | YU | TiA16V4 | + | – | – |
| 5 | SOA | 67 F | 17 | Bateman | CoCrMo | – | + | – |
| 6 | POA | 74 F | 10 | YU | TiA16V4 | + | – | – |
| 7 | SOA | 55 F | 20 | Six-Ti | TiA16V4 | – | + | – |
| 8 | POA | 82 F | 19 | Six-Ti | TiA16V4 | – | – | – |
| 9 | POA | 82 F | 12 | YU | TiA16V4 | + | – | – |
| 10 | POA | 80 M | 9 | YU | TiA16V4 | – | – | – |
| 11 | SOA | 71 F | 19 | Six-Ti | TiA16V4 | – | + | – |
| 12 | SOA | 63 F | 9 | YU | TiA16V4 | + | – | – |
| 13 | POA | 78 F | 26 | Muller | CoCrMo | – | – | – |
| 14 | SOA | 72 F | 18 | YU | TiA16V4 | – | + | – |
| 15 | SOA | 55 F | 4 | YU | TiA16V4 | – | – | – |
| Average | 70 | 15 |
YU: Yamagata University System; PMMA: polymethyl methacrylate; POA: primary osteoarthritis; SOA: secondary osteoarthritis; TiA16V4: titanium-aluminum-vanadium; CoCrMo: cobalt-chromium-molybdenum.