Table 1. Patient demographics of the 9 revised bearings.
| Ptn | Age | Gender | YoO | Indication | Headsize | Stem name | Pain | HHS | Diagnosis | Inclination angle(degrees) | Co levels(nmol/l) | Cr levels(nmol/l) | Histology |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 57 | F | 2007 | OA | 46 | Mallory | no | 70>80 | Tumor | 47.69 | 22,9 | 18,4 | Pseudotumor |
| 2. | 58 | F | 2007 | OA | 48 | Taperloc | yes | 60>70 | Tumor/ Loosening | 59.11 | 1431,2 | 510,9 | Not performed |
| 3. | 60 | F | 2007 | OA | 46 | Taperloc | yes | 90>100 | Tumor | 59.44 | 80,9 | 67,4 | Not performed |
| 4. | 65 | F | 2008 | OA | 46 | Mallory | yes | 60>70 | Tumor | 35.81 | 13,6 | 6,5 | Not performed |
| 5. | 57 | F | 2009 | OA | 46 | Taperloc | no | 80>90 | Tumor | 52.07 | 80,8 | 100,1 | Pseudotumor |
| 6* | 59 | M | 2009 | AVN | 56 | Taperloc | yes | 70>80 | Loosening | 32.49 | 22,1 | 35,9 | Pseudotumor |
| 7* | 72 | M | 2009 | OA | 46 | Taperloc | yes | <60 | Pain | 26.62 | 13,6 | 14 | Pseudotumor |
| 8. | 22 | M | 2009 | Pseudoarthrosis | 46 | Mallory | yes | 70>80 | Tumor | 41.59 | 26,8 | 58,6 | No clear diagnose |
| 9** | 67 | F | 2009 | OA | 48 | Taperloc | no | 90>100 | Tumor | 40.14 | 283,9 | 149,6 | Pseudotumor |
Patients
* marked had no pseudotumor.
** Bilateral MoM THA.
Abbreviations: Ptn = Patientnumber, YoO = Year of Operation, HHS = Harris Hip Score, Co = Cobalt, Cr = Chromium, OA = Osteoarthritis