Table 3.
Knee etiologies of revision and demographics.
| Etiology with stratification | Average age (y) | Gender (M/F) | Incidence (n) |
|---|---|---|---|
| Arthrofibrosis | |||
| 2009-2013 | 59.4 | 26/42 | 68 |
| 2014-2019 | 64.0 | 22/35 | 57 |
| Extensor mechanism failure | |||
| 2009-2013 | 68.5 | 7/12 | 19 |
| 2014-2019 | 68.8 | 11/22 | 33 |
| Fracture | |||
| 2009-2013 | 72.0 | 2/18 | 20 |
| 2014-2019 | 71.3 | 8/21 | 29 |
| Infection | |||
| 2009-2013 | 64.5 | 263/261 | 524 |
| 2014-2019 | 65.2 | 292/184 | 476 |
| Instability | |||
| 2009-2013 | 63.1 | 47/122 | 169 |
| 2014-2019 | 64.7 | 122/191 | 313 |
| Aseptic loosening | |||
| 2009-2013 | 63.5 | 187/260 | 447 |
| 2014-2019 | 65.2 | 249/359 | 608 |
| Mechanical failure | |||
| 2009-2013 | 59.6 | 2/7 | 9 |
| 2014-2019 | 61.1 | 9/11 | 20 |
| Miscellaneous | |||
| 2009-2013 | 66.6 | 1/6 | 7 |
| 2014-2019 | 64.7 | 6/4 | 10 |
| Unicompartmental arthroplasty converted to full TKA | |||
| 2009-2013 | 62.5 | 12/19 | 31 |
| 2014-2019 | 66.2 | 25/25 | 50 |
| Wear | |||
| 2009-2013 | 68.2 | 20/23 | 43 |
| 2014-2019 | 66.9 | 21/30 | 51 |
| Wound dehiscence | |||
| 2009-2013 | 59.0 | 4/4 | 8 |
| 2014-2019 | 64.6 | 7/10 | 17 |