Table 2.
Cup-cage failure
| Failure type | Time after Surgery (months) | Pelvic discontinuity* | Treatment |
|---|---|---|---|
| Aseptic loosening | 70 | Yes | Revision to cage plus augment |
| Aseptic loosening | 5 | Yes | Revision to cage plus augment |
| Aseptic loosening | 20 | Yes | Revision to cage |
| Aseptic loosening | 94 | Yes | Revision to cage |
| Dislocation | 15 | No | Open reduction, revision to constrained liner; dislocated constrained liner, revised to TM® cup and constrained liner |
| Septic loosening | 47 | No | I&D with liner and head exchange; persistent infection, one-stage revision, cemented constrained liner |
* Presence of pelvic discontinuity at the initial revision; I&D = irrigation and débridement.