Alternative classification and screening protocol for transitional lumbosacral vertebra in German shepherd dogs

Table 2 Abnormal computed tomography findings of sacrum and their correlation with radiographs in nine German shepherd dogs

Dog no	Computed tomography findings	Radiological diagnosis	VD	LAT
1 and 2	Deep indentation between S1 and S2 spinous processes	Type 4	Type 4	Normal
3	Deep indentation between S1 and S2 spinous processes	LTV	Type 3/3	Normal
	Bilateral transverse processes
4	Nonfused S2-S3	LTV	Normal	L8, nonfused S2-S3
5	Nonfused S1-S2, bilateral transverse processes	LTV	Type 3/2	Nonfused S1-S2
6	Deep indentation between S1 and S2 spinous processes	Type 4	Type 4	Normal
7	Nonfused S2-S3	LTV	Normal	L8, nonfused S2-S3
8	Deep indentation between S1 and S2 spinous processes	Type 4	Type 4	Normal
	Unilateral left transverse process
9	Bilateral transverse processes	LTV	Type 2/2	Normal

VD = ventrodorsal radiograph, LAT = laterolateral radiograph, Type 4 = separation of spinous process of S1 from the median crest,
S1-S2 = sacral vertebrae 1–3, LTV = lumbosacral transitional vertebra, L8 = eighth lumbar vertebrae.

ISSN: 1751-0147