Table 1.
Characteristics of the revision total hip arthroplasty (THA) and total knee arthroplasty (TKA) study populations.
| Characteristic | Two-Stage Revision THA | Aseptic Revision THA | Two-Stage Revision TKA | Aseptic Revision TKA |
|---|---|---|---|---|
| Number of patients | 176 | 1611 | 266 | 1276 |
| Male (%) | 109 (62%) | 738 (46%) | 162 (61%) | 562 (44%) |
| Age (years) ± SD | 65 ± 12 | 66 ± 13 | 65 ± 11 | 65 ± 12 |
| Race: White | 163 (93%) | 1526 (95%) | 249 (94%) | 1202 (94%) |
| Mean operative time (minutes) ± SD | 176 ± 69 | 146 ± 82 | 168 ± 59 | 139 ± 59 |
| Body mass index (kg/m2), mean ± SD | 31 ± 7 | 30 ± 7 | 34 ± 12 | 33 ± 8 |
| LOS, median (IQR) | 8 (7, 10) | 3 (2, 4) | 8 (7,10) | 3 (2,3) |
| Charlson Comorbidity Index | ||||
| Patients with no comorbidities* | 99/160 (62%) | 1002/1606 (62%) | 158/254 (62%) | 820/1275 (64%) |
| Mean no comorbidities per patient | <1 | < 1 | <1 | <1 |
SD = Standard Deviation, LOS = Length of Stay, IQR = Interquartile range. LOS for two-stage revisions calculated combining two hospital episodes.
*
Percentage calculated out of patients with any diagnoses in year before surgery