TABLE 1.
Patient Demographics and Surgical Characteristicsa
| Variable | Mean ± SD or Fraction (%) |
|---|---|
| Age, y | 37.3 ± 9.7 |
| ≥40 y | 21/53 (40) |
| BMI | 27.7 ± 5.6 |
| Sex, male/female, n | 20/33 |
| Mechanical symptoms | 35/53 (66) |
| Acute (<6 mo) | 30/53 (57) |
| Preoperative Tegner ≥6 | 6/48 (13) |
| Follow-up, mo | 31.5 ± 13.9 |
| Flap tear | 24/50 (48) |
| Lesion size, cm2 | 3.3 ± 1.9 |
| Size >2 cm2 | 26/42 (62) |
| ICRS grade (N = 53) | |
| 2 | 2 (3.8) |
| 3 | 34 (64.2) |
| 3a | 7 |
| 3b | 4 |
| 3c | 22 |
| 3d | 1 |
| 4 | 11 (20.8) |
| 4a | 8 |
| 4b | 3 |
| Unassigned | 6 (11.3) |
| Compartment (N = 53) | |
| Medial | 7 (13.2) |
| Lateral | 9 (17.0) |
| Patellofemoral | 31 (58.5) |
| Other | 1 (1.9) |
| Unassigned | 5 (9.4) |
| KL grade (N = 53) | |
| 0 | 28 (52.8) |
| 1-2 | 14 (26.4) |
| 3-4 | 5 (9.4) |
| Unassigned | 6 (11.3) |
aBMI, body mass index; ICRS, International Cartilage Repair Society; KL, Kellgren-Lawrence.