Table 1.
Demographic data of study patients and defect characteristics
| Baseline characteristics | Value |
|---|---|
| Number of patients (knees) | 153 (155) |
| Followup [%] | 87 |
| Age, mean (range) [years] | 38.3 (17–60) |
| Followup, mean (range) [months] | 64.2 (24–132) |
| Females—Males | 70–83 |
| Worker’s compensation, % of patients | 22/153 (14%) |
| Osteochondritis dissecans, % of knees | 12/155 (8%) |
| Mean number of defects per knee | 2.1 |
| Mean size (range) of primary lesion [cm2] | 6.7 (1–15.1) |
| Mean size (range) across all lesions [cm2] | 4.9 (0.6–15.1) |
| Mean total resurfaced area (range) per knee [cm2] | 10.4 (1.5–31.6) |
| Defect location | |
| Medial femoral condyle | 115 |
| Trochlea | 85 |
| Patella | 60 |
| Lateral femoral condyle | 45 |
| Medial tibial plateau | 7 |
| Lateral tibial plateau | 7 |
| Bipolar (kissing) defects | |
| Patellofemoral | 30 joints |
| Medial compartment | 6 joints |
| Lateral compartment | 6 joints |