Table 5 The largest resection percentage for each bony structure at each vertebral segment (N = 33)
| Â | L2 | L3 | L4 | L5 | ||||
|---|---|---|---|---|---|---|---|---|
Up (n = 1) | Down (n = 1) | Up (n = 4) | Down (n = 9) | Up (n = 8) | Down (n = 9) | Up (n = 0) | Down (n = 1) | |
Facet jointa (mean) (percentage) | 20% | 23% | 23% | 33% | 31% | 38% | NA | 42% |
Facet jointb (mean) (percentage) | 24% | 21% | 30% | 28% | 35% | 32% | NA | 36% |
Pedicle (mean) (percentage) | 19% | 27% | 29% | 34% | 34% | 43% | NA | 46% |