Table 1.
Patient characteristics.
| Case number | 13 cases 26 knees |
| Sex (M/F) | 2/11 |
| Age (y.o.) | 74.5 ± 5.4 (65–82) |
| Height (cm) | 154.9 ± 7.3 (145–166) |
| Weight (kg) | 55.3 ± 6.6 (47–70) |
| BMI (kg/m2) | 23.0 ± 2.2 (19.0–28.4) |
| KL grade (grade III/IV) | 2/11 |
| BS-POP patients questionnaire (point) | 18.5 ± 2.0 |
BMI: body mass index; KL grade: Kellgren–Lawrence grading system; BS-POP: the brief scale for psychiatric problems in orthopedic patients.