Table 2.
Patient demographics in octogenarians who underwent primary or revision total knee arthroplasty
| Primary | Revision | p value | |
|---|---|---|---|
| Knee | 231 | 41 | |
| Age | 81.9 ± 2.2 (80–90) | 82.3 ± 2.2 (80–87) | 0.310 |
| Female/male | 212/19 | 37/4 | 0.761 |
| Right/left | 116/115 | 20/21 | 1.000 |
| Body mass index (kg/m2) | 25.0 ± 3.0 (17.8–33.8) | 25.6 ± 5.6 (18.1–30.9) | 0.318 |
| ASA score | 2.3 ± 0.4 (2–3) | 2.4 ± 0.5 (2–3) | 0.806 |
| ACCI | 4.4 ± 0.6 (4–7) | 4.8 ± 0.8 (4–8) | 0.003 |
| Last follow-up period (year)a | 3.8 ± 0.6 (0.5–13) | 3.5 ± 3.0 (0.5–11) | 0.451 |
Data on the age, body mass index, American Society of Anesthesiologists (ASA) score, age-adjusted Charlson comorbidity index (ACCI), and last follow-up period are presented as the mean ± standard deviation (range)
aLast follow-up period is the follow-up period up to the last outpatient department visit