Table 2.
Surgical protocol and postoperative outcomes
| DBM + PRP group | Autograft group | Statistics | P Value | |
|---|---|---|---|---|
| Types of operations | χ2 = 0.148 | 0.700a | ||
| Bone grafting | 5 | 10 | ||
| Bone grafting + additional plate | 11 | 17 | ||
| Bone grafting materials | ||||
| DMB + PRP | 11 | |||
| DMB + PRP + allograft | 5 | |||
| Autologous iliac bone | 27 | |||
| Immediate postoperative complications | ||||
| Prolonged drainage | 6 | 11 | χ2 = 0.044 | 0.834a |
| Exudation | 2 | 3 | χ2 = 0.000 | 1.000 b |
| Delayed incision healing | 2 | 4 | χ2 = 0.000 | 1.000b |
| Subcutaneous hematoma | 1 | 0.372c | ||
| Donor site complications | 3 | 0.282c | ||
| Bony healing time (months), mean ± SD | 7.533 ± 3.357 | 6.625 ± 2.516 | t=0.964 | 0.341d |
| Recurrence of bone non-union | 1 | 3 | χ2 = 0.000 | 1.000b |
Note. a: Pearson’s chi-square test; b: continuity correction chi-square test; c: Fisher’s exact test; d: independent-samples T test