Chief Complaint Dog is lame in hind legs Signalment 9 mo old Female spay Rottwieler Present History abnormal gait Right worse than left Normal walk Uncomfortable when sitting down Worse in morning and after activity Reluctant to use stairs Rimadyl @ 10mg/kg when painful - no response to treatment Past History No trauma Iams large breed free choice Lives indoors Physical normal stance Disproportionate amt. Wt. On fore legs Mild lamenesss (1/4) Right Rear No neuro deficiets found No muscle pain/atrophy Palpation hip joints - pain rxn rt>left - extension > flexion Hip motion max 100 degrees Ortalani sign positive on left side Unable to evaluate on right