Dog No. | No. Lum | No. Sacr | LTV |
|---|
3 | 8 | 3 | 3 |
4 | 8 | 2 | 3 |
5 | 8 | 3 | 3 |
10 | 8 | 3 | 3 |
11 | 8 | 3 | 2 |
14 | 8 | 3 | 2 |
15 | 6 | 2 | 2 |
22 | 8 | 3 | 1 |
26 | 6 | 3 | 0 |
- The table presents each dog with numerical alterations of its lumbar vertebrae formula (n = 9). The number of lumbar vertebrae was counted on neutral lateral radiographs, starting from the last thoracic vertebra (which is not included in the count). Additionally, the table provides the numbers of fused sacral vertebrae and the lumbosacral transitional vertebra (LTV) type. LTV was classified from ventrodorsal radiographs into four types: Type 0 indicates normal lumbosacral anatomy; Type 1 is characterised by an independent spinous process of the first sacral vertebra, separated from the medial sacral crest; Type 2 is symmetrical, with transverse processes partially fused with the sacrum or ilium, but the vertebral body remains separate from the sacrum; and Type 3 is asymmetrical, with one side resembling a lumbar vertebra and the other a sacral wing articulating with the ilium [8]. Dog No., dog number; No. Lum, numbers of lumbar vertebrae; No. Sacr, number of fused sacral vertebrae; LTV, lumbosacral transitional vertebra
Acta Veterinaria Scandinavica