Table 2.
Patient and Surgery Characteristics between Study Groups.a
| OCA Delamination (n = 13) | OCA Matches (n = 33) | P | |
|---|---|---|---|
| Patient characteristics | |||
| Age, years | 32 (16-53) | 36 (14-57) | 0.38 |
| Sex (male/female), n | 10/3 | 23/10 | 0.66 |
| Body mass index, kg/m2 | 26.8 (18.0-39.1) | 25.0 (15.8-36.2) | 0.310 |
| Laterality (right/left), n | 7/6 | 17/16 | 0.89 |
| No. of prior surgeries | 1.8 (0-10) | 0.84 (0-3, n = 31) | 0.26 |
| Preoperative Marx activity score | 4.45 (0-16, n = 11) | 7.23 (0-16, n = 26) | 0.216 |
| Preoperative IKDC score | 42.7 (29.9-52.8, n = 9) | 54.0 (28.7-87.3, n = 26) | 0.00848 |
| Allograft characteristics | |||
| Allograft donor age, years | 27 (15-42) | 29 (17-41) | 0.54 |
| Allograft donor gender (male/female) | 10/3 | 27/6 | 0.71 |
| Allograft storage timeb | 30 (n = 12) | 31 | 0.78 |
| No. of plugs used | 1.8 | 1.3 | 0.056 |
| Average plug size, mm | 21 | 22 | 0.76 |
| Lesion characteristics | |||
| OCA location, n | |||
| MFC | 5 | 7 | |
| LFC | 5 | 16 | |
| Trochlea | 1 | 7 | |
| Patella | 0 | 0 | |
| MFC + LFC | 1 | 0 | |
| MFC + trochlea | 1 | 3 | |
| Chondral defect area, cm2 | 5.31 (1.0-9.5) | 5.50 (0.75-15.25) | 0.809 |
OCA = osteochondral allograft; MFC = medial femoral condyle; LFC = lateral femoral condyle; IKDC = International Knee Documentation Committee.
a
Values are reported as the mean with the range in parentheses unless otherwise indicated.
b
Defined with day 0 being the processing date.