Table 3 Failure modes for the parallel, Y, and posterior two plating configurations in axial loading and posterior bending directions
|  | Axial loading (n = 12) | Posterior bending (n = 15) | ||||
|---|---|---|---|---|---|---|
Parallel plating (n = 4) | Y plating (n = 4) | Posterior two plating (n = 4) | Parallel plating (n = 5) | Y plating (n = 5) | Posterior two plating (n = 5) | |
(1) Proximal bone-screw interface loosening | 0/4 | 0/4 | 0/4 | 2/5 (40%) | 0 | 0 |
(2) Distal bone-screw interface loosening | 4/4 (100%) | 0/4 | 2/4 (50%) | 3/5 (60%) | 0 | 2/5 (40%) |
(3) Plastic deformation | 0/4 | 4/4 (100%) | 2/4 (50%) | 0 | 5/5 (100%) | 3/5 (60%) |