| ### | Acronymn | Details of Wear Mechanism | Type | THA | RSA |
| 1 | NAR | Femoral neck abrasion by cup rim | Abrasion, deformation | yes | no |
| 2 | 3CO | 3rd body wear by CoCr debris | Abrasion | yes | yes |
| 3 | FHG | Femoral head gouges | Plastic deformation | yes | - |
| 4 | 2CR | 2-body damage to head by cup rim | Abrasion, deformation | yes | yes |
| 5 | 3CR | Entrapped particles (3rd body) | Abrasion | yes | yes |
| 6 | 3TI | 3rd body wear by Ti6Al4V debris | Abrasion | yes | - |
| 7 | TTL | Titanium contamination | Metal transfer | yes | - |
| 8 | 2OR | Surgical damage | Abrasion, metal transfer | yes | - |