My dog... a 4 year old...has developed a lim in his r front leg. Vet seen and xrays are clear for breaks and bone lesions. RX rimadly for 2 weeks and rest. His limp is pronounced when he first gets up from laying down and he limps a little bit then is fine. he even runs like a bat out of hell without any effort.
What could this be? Osteoarthritis is possible but should have shown up in xray.