Table 1.
Patient demographics and clinical outcomes
| Variable | CT-based patient-specific instrumentation group (n = 30) | MRI-based patient-specific instrumentation group (n = 30) | Conventional instrumentation group (n = 30) | p value |
|---|---|---|---|---|
| Sex (male:female) (number of patients) | 12:18 | 14:16 | 13:17 | 0.87 |
| Age (years)* | 63 (54–73) | 65 (56–74) | 64 (54–74) | 0.11 |
| BMI (kg/m2)* | 30 (25–33) | 30 (25–34) | 31 (23–35) | 0.73 |
| Knee Society pain score (points)* | ||||
| Preoperative | 24 (9–39) | 24 (8–32) | 26 (9–38) | 0.06 |
| Postoperative | 90 (85–100) | 90 (87–100) | 89 (85–100) | 0.06 |
| Knee Society function score (points)* | ||||
| Preoperative | 18 (10–28) | 17 (10–27) | 17 (10–28) | 0.53 |
| Postoperative | 78 (70–100) | 81 (67–100) | 77 (67–100) | 0.80 |
| WOMAC score (points)* | ||||
| Preoperative | 65 (53–88) | 65 (54–87) | 63 (52–86) | 0.41 |
| Postoperative | 24 (16–36) | 26 (17–37) | 26 (16–36) | 0.36 |
* Values are expressed as median, with range in parentheses.