Table 3.
Biomechanical testing results of artificial Sawbones patellae with and without prior harvest of bone patellar tendon bone site.
| Trial | Max compressive force (N) | Max displacement (mm) |
|---|---|---|
| Cemented composite patellae without prior BPTB autograft | ||
| No BPTB 1 | 4979.82 | 4.13 |
| No BPTB 2 | 4630.66 | 4.27 |
| No BPTB 3 | 5355.99 | 5.13 |
| No BPTB 4 | 3186.05 | 2.23 |
| No BPTB 5 | 4890.27 | 2.60 |
| No BPTB 6 | 4700.50 | 2.41 |
| No BPTB 7 | 4492.76 | 3.00 |
| No BPTB 8 | 5199.07 | 3.13 |
| No BPTB 9 | 3227.36 | 2.55 |
| No BPTB 10 | 4851.58 | 2.68 |
| Cemented composite patellae with prior BPTB autograft | ||
| BPTB 1 | 1882.48 | 2.17 |
| BPTB 2 | 2532.18 | 3.03 |
| BPTB 3 | 3395.31 | 3.76 |
| BPTB 4 | 2676.62 | 3.36 |
| BPTB 5 | 2973.79 | 3.22 |
| BPTB 6 | 2360.65 | 3.38 |
| BPTB 7 | 3492.30 | 3.09 |
| BPTB 8 | 2906.14 | 3.66 |
| BPTB 9 | 2775.93 | 3.44 |
| BPTB 10 | 3558.41 | 3.81 |
BPTB, bone patellar tendon bone.