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

From: 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

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