Table 3.
Etiology of Revisions According to the Early and Late Periods in Two Time Intervals
| Periods | ||||||
|---|---|---|---|---|---|---|
| 2005-2011 | 2011-2017 | |||||
| Time to revision | Early (<2 year) |
Late (≥2 year) |
Total | Early (<2 year) |
Late (≥2 year) |
Total |
| Infection (n, %) | 37 | 44 | 81 | 39 | 34 | 73 |
| 62.7% | 55.0% | 58.3% | 62.9% | 37.8% | 48.0% | |
| Aseptic loosening (n, %) |
7 | 22 | 29 | 14 | 42 | 56 |
| 11.9% | 27.5% | 20.9% | 22.6% | 46.7% | 36.8% | |
| Periprosthetic Fracture (n, %) | 3 | 2 | 5 | 1 | 7 | 8 |
| 5.1% | 2.5% | 3.6% | 1.6% | 7.8% | 5.3% | |
| Unresolved pain (n, %) |
4 | 7 | 11 | 4 | 2 | 6 |
| 6.8% | 8.8% | 7.9% | 6.5% | 2.2% | 3.9% | |
| Instability (n, %) | 5 | 5 | 10 | 2 | 4 | 6 |
| 8.4% | 6.3% | 7.2% | 3.2% | 4.4% | 3.9% | |
| Insertfracture (n, %) | 3 | 0 | 3 | 2 | 1 | 3 |
| 5.1% | 0.0% | 2.2% | 3.2% | 1.1% | 2.0% | |
Early; <2 years, Late≥2 years. Boxes in bold type indicate the 2 most common causes of etiology.