What Happens During a Patella Palpation Exam?
The veterinarian flexes the knee and feels whether the kneecap slips out of its groove, grading any looseness from one to four — a quick screen small breeds especially need.
The patella — the kneecap — is meant to glide up and down a groove at the end of the thigh bone. In many small dogs the groove is shallow or the alignment is off, letting the kneecap pop toward the inside of the leg. Palpation is the hands-on screen for this: no machine, just a trained thumb on a bent knee.
What the grades mean for daily life
Grade 1 means the kneecap can be nudged out but snaps back on its own; grade 2 pops out during motion and returns; grades 3 and 4 sit out of the groove most or all of the time. Lower grades are often managed with weight control, muscle-building exercise, and floor traction, while higher grades — or a dog that skips, cries, or holds a leg up — bring surgery into the conversation.
Progression speed differs widely between individuals, which is why the check is repeated at every wellness visit rather than done once. Have the grade noted in the chart at each consult with your veterinarian, and mention any new skipping steps or reluctance on stairs — those small reports often move the plan more than the exam itself.
MediIndex articles are for general information only and are not medical advice, diagnosis, or advertising. Outcomes vary by individual — consult a board-certified specialist for personal decisions.