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Table 4 Frequency of radiographic findings in the control and treatment groups, at the initial and final evaluations

From: Effect of a single intra-articular high molecular weight hyaluronan in a naturally occurring canine osteoarthritis model: a randomized controlled trial

Radiographic finding T0 180d
CG HG CG HG
Absolut % Absolut % Absolut % p Absolut % p
Irregular wear on the femoral head, making it misshapen and with a loss of its rounded appearance 18 90% 17 85% 20 100% 0.08 20 100% 0.16
Flattened or shallow acetabulum, with irregular outline 9 45% 11 55% 20 100% <0.01* 20 100% <0.01*
Caudolateral curvilinear osteophyte (CCO) 5 25% 5 25% 20 100% 1.00 20 100% 0.48
New bone formation on the acetabulum and on femoral head and neck 16 80% 20 100% 20 100% 1.00 20 100% <0.05*
The angle formed at the cranial effective acetabular rim is worn away 12 60% 18 90% 20 100% 0.16 20 100% <0.05*
Subchondral bone sclerosis along the cranial acetabular edge 20 100% 19 95% 20 100% 0.32 20 100% 1.0
Circumferential femoral head osteophyte (CFHO) 3 15% 3 15% 20 100% 0.18 20 100% <0.01*