Characteristics of patients. Results for continuous variables are expressed as mean (standard deviation)
| All patients (n=106) | Patients who completed the study (n=74) | Patients who underwent TKA (n=15) | Patients who died or were lost (n=17) | |
|---|---|---|---|---|
| Wt, weight; ht, height; TKA, total knee arthroplasty; K/L grade, Kellgren and Lawrence grade; JSN, joint space narrowing. | ||||
| *Weight (kg)/(height (m))2; †evaluated using a knee rating system of the Hospital for Special Surgery34; ‡see fig 1. | ||||
| Age | 69.9 (7.8) | 69.5 (7.5) | 72.5 (6.0) | 69.2 (10.0) |
| Sex | ||||
| Men | 20 | 16 | 1 | 3 |
| Women | 86 | 58 | 14 | 14 |
| Body mass index* | 24.5 (3.2) | 24.5 (3.3) | 25.4 (3.0) | 23.8 (2.8) |
| Pain† | 23.5 (4.8) | 24.3 (4.7) | 20.3 (4.8) | 23.2 (3.9) |
| Mechanical axis (°)‡ | 6.5 (4.7) | 5.3 (4.0) | 12.5 (4.8) | 6.1 (3.2) |
| Joint space width (mm) | 3.0 (1.3) | 3.3 (1.1) | 1.5 (1.3) | 3.0 (0.9) |
| Adduction moment (% wt × ht) | 5.3 (1.8) | 4.9 (1.6) | 6.8 (1.7) | 5.4 (1.7) |
| K/L grade | ||||
| 1 | 21 | 20 | 0 | 1 |
| 2 | 27 | 22 | 1 | 4 |
| 3 | 36 | 23 | 4 | 9 |
| 4 | 22 | 9 | 10 | 3 |
| JSN grade | ||||
| 0 | 7 | 6 | 0 | 1 |
| 1 | 58 | 46 | 1 | 11 |
| 2 | 25 | 18 | 3 | 4 |
| 3 | 16 | 4 | 11 | 1 |