Table 1.
Descriptive Characteristics of the Population before Surgery
| Variable | n(%) |
|---|---|
| Sex | |
| male | 30 (28) |
| female | 78 (72) |
| Age at surgery, y | |
| Mean ± SD | 19.2 ± 6.1 |
| Minimum; Maximum | 13; 40 |
| Body mass index, kg/m2 | |
| Mean ± SD | 21.7 ± 3.4 |
| Minimum; Maximum | 16.6; 37.6 |
| Side | |
| Right | 52 (48) |
| Left | 56 (52) |
| Patellar height(CDI) | |
| Mean ± SD | 1.2 ± 0.22 |
| Minimum; Maximum | 0.5; 1.6 |
| Class of patellar height | |
| < 1.3 | 36 (33) |
| ≥ 1.3 | 72 (67) |
| Trochlear dysplasia | |
| Type A | 26 (24) |
| Type B | 18 (17) |
| Type C | 38 (35) |
| Type D | 26 (24) |
| TT-TG distance, mm | |
| Mean ± SD | 22 ± 3.0 |
| Minimum; Maximum | 17; 30 |
| Class of TT-TG distance, mm | |
| < 20 | 30 (28) |
| ≥ 20 | 78 (72) |
| Postoperative Kujala score | |
| Mean ± SD | 90.5 ± 15.5 |
| Minimum; Maximum | 24; 100 |
| Postoperative Tegner score | |
| Mean ± SD | 5.3 ± 1.3 |
| Minimum; Maximum | 2; 8 |
| Postoperative IKDC score | |
| Mean ± SD | 72.7 ± 12.1 |
| Minimum; Maximum | 26; 86 |
| Follow-up, m | |
| Mean ± SD | 61.3 ± 15.4 |
| Minimum; Maximum | 36; 92 |
| Status at the follow-up | |
| Success | 102 (94) |
| Failure | 6 (6) |