Plan of Action: 1.) Orthopedic exam under sedation including tibial compression -We will be able to determine if there are any other abnormalities present in the stifle joint that were undetectable due to the pain when the joint was manipulated (i.e. positive cranial drawer sign on right or left would indicate a partial / complete rupture of the cruciate ligaments). 2.) Radiographs of stifle joints bilaterally (flexed lateral and VD), and lumbosacral region (VD) of the spine -These would be taken to determine if there are any radiographic changes to these regions. If a cruciate ligament is ruptured there may be slight joint effusion if this has been a chronic problem, signs of degenerative joint disease may be seen. Fractures could possibly be apparent. Depending on the findings of the first radiographs taken, an oblique view of stifles may be needed to evaluate the conformation of the trochlear groove. 3.) MRI of stifle joints that appear affected by other tests performed -This would allow us to further evaluate the ligaments and surfaces of the joint that were unable to be properly evaluated by radiographs.