Table 1 Patient demographic and surgical parameters (n = 434 patients [868 knees]).
Parameter | Median (interquartile range)/numbers (%) |
|---|---|
Age* (years) | 76 (70–80) |
Sex† | |
Male | 77 (18) |
Female | 357 (82) |
Body mass index* (kg/m2) | 26 (24–29) |
Diagnosis† | |
Osteoarthritis | 416 (96) |
Rheumatoid arthritis | 18 (4.1) |
American society of anesthesiologists score† | |
1 | 67 (15) |
2 | 341 (79) |
3 | 26 (6) |
Age-adjusted Charlson comorbidity index† | |
0–2 | 52 (12) |
3–4 | 267 (62) |
≤ 5 | 115 (26) |
Age-adjusted 5-item modified Frailty Index† | |
0 | 46 (11) |
1 | 141 (32) |
2 | 189 (44) |
3 | 52 (12) |
4 | 6 (1.4) |
Follow-up period* (months) | 47 (24–71) |
Operation time* (min) | 109 (99–120) |
Perioperative visible blood loss* (ml) | 690 (438–910) |
Intraoperative bleeding* (ml) | 0 (0–0) |
Postoperative bleeding* (ml) | 680 (430–910) |
