Diagnostic accuracy of a short-duration 3 Tesla magnetic resonance protocol for diagnosing stifle joint lesions in dogs with non-traumatic cranial cruciate ligament rupture

Table 2 The scoring system used to grade osteoarthritis and cartilage damage in this study

Parameter	Scoring system	MRI	Surgery
Cartilage damage*	Smooth normal cartilage	0	0
	Mild surface irregularities	1	1
	Partial thickness erosion	2	2
	Ulceration with exposure of subchondral bone	3	3
Osteoarthritis**	Osteophytes absent	0	0
	Osteophytes present on patella and proximal aspect of femoral trochlear groove	1	1
	Osteophytes present on patella, femoral trochlear groove, medial and lateral	2	2
	femoral condyles and tibial plateau
	Severe osteophytes on patella, femoral trochlear groove, medial and lateral	3	3
	femoral condyles and tibial plateau

MRI = Magnetic resonance imaging; * Adapted from Olive et al. 2010; ** Adapted from Moreau et al. 2003.

ISSN: 1746-6148