Dog No. | No. Lum | No. Sacr | Sacr | LTV |
|---|
6 | 7 | 2 | 2 + 1 | 3 |
9 | 8 | 2 | 2 + 1 | 3 |
13 | 7 | 2 | 2 + 1 | 2 |
16 | 7 | 2 | 2 + 1 | 2 |
17 | 6 | 2 | 2 + 1 | 2 |
20 | 7 | 3 | 3 + 1 | 1 |
27 | 7 | 2 | 2 + 1 | 0 |
- The table presents details on each dog’s lumbosacral transitional vertebra (LTV) type based on ventrodorsal radiographs and their lumbar and sacral formulas. Additionally, details pertaining to sacral fusion with the first coccygeal vertebra are provided. The number of lumbar vertebrae was counted from the last thoracic vertebra using neutral lateral radiographs. LTV was classified 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 (counted from the last thoracic vertebra, which is not included in the count); No. Sacr, number of fused sacral vertebrae; LTV, lumbosacral transitional vertebrae; Sacr, sacral formula 2 + 1 indicating two fused sacral vertebrae partially fused with the first coccygeal vertebra, 3 + 1 indicates three fused sacral vertebrae partially fused with first coccygeal vertebrae
