Ultrasound of the left and right stifle – 

Left stifle: A moderate amount of anechoic effusion as well as moderate synovial proliferations and capsular thickening is noted within the suprapatellar and infrapatellar recess of the left stifle joint. The thickening was especially noted within the infrapatellar recess of the synovial lining. There are moderate osteophyte formations at the periarticular margins of the femoropatellar and femorotibial joint. The cranial cruciate ligament presents as an echogenic irregular stump at the eminence of the tibia and is surrounded by a moderate amount of effusion. The medial meniscal surface is mildly uneven in outline and the visible portion of the meniscus is mildly heterogenous in echogenicity. There is no evidence of meniscal prolapse. The lateral meniscus is in situ with even surface and a mild uniform overall increase in echogenicity.

Right stifle:

A scant amount of anechoic effusion as well as subtle synovial thickening is noted within the suprapatellar and infrapatellar recess of the right stifle joint. There are osteophyte formations emerging at the periarticular margins of the femoropatellar joint. The cranial cruciate ligament is continuous with a regular fibre pattern, even thickness and smooth outline. The medial and lateral meniscus are in situ with uniform echogenicity and smooth