Table 1.
Revision cases. Seven hips were switched to a metal-on-polyethylene articulation from 5.1 years to 15 years postoperatively because of pain and swelling. Fx, secondary hip OA in post-traumatic fracture; OA, osteoarthritis; RA, rheumatoid arthritis.
| Case | Age and Sex | Diagnosis | BMI | Observed PT after Primary Arthroplasty | Symptom | Time to Revision (Years) | Cup Inclination | Cup Anteversion |
|---|---|---|---|---|---|---|---|---|
| 1 | 63 female | Fx | 23.6 | 5-year | pain, cup loosening | 8.1-year | 64.4 | 13.8 |
| 2 | 57 female | OA | 23.6 | 3-year | pain, dislocation |
5.8-year | 62.0 | 19.0 |
| 3 | 66 female | OA | 22.8 | 5.1-year | pain | 5.1-year | 47.8 | 18.8 |
| 4 | 34 female | RA | 25.2 | not observed | pain | 8-year | 63.0 | 29.6 |
| 5 | 53 female | RA | 16.5 | 4-year | pain, swelling | 10.5-year | 55.7 | 24.2 |
| 6 | 63 female | RA | 21.6 | 5-year | swelling, osteolysis |
11.5-year | 55 | 14.0 |
| 7 | 67 male | OA | 24.1 | 6-year | pain, dislocation |
15-year | 56.6 | 17.9 |