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Is luxating patella surgery necessary?

EMReviewed by Eben Martin, Veterinary Surgeon · Updated August 2026

It depends almost entirely on grade and symptoms. Grade 1 with no symptoms: no. Grade 4: yes. Grade 2 and 3 are decided by how often the dog is lame, whether it is progressing, and the dog's age, with surgery favoured in young dogs with frequent symptoms and monitoring favoured in older dogs with occasional skips.

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  • Surgery is well supported when lameness is frequent or worsening, the grade is progressing, cartilage damage is starting, or the dog is young enough to bank decades of use from a corrected knee
  • Monitoring is legitimate when luxation is low grade, symptoms are rare and brief, and the dog is otherwise sound; weight control does more here than any supplement
  • The in between cases deserve an actual conversation about your dog rather than a default booking

The question that cuts through it

Ask how often the kneecap is actually out, and what it is costing the dog. A dog that skips twice a week and is otherwise flying is a different proposition from a dog that will not jump on the couch anymore. Owners are the only witnesses to this, which means your observations, ideally a week of notes or some video, are real diagnostic data. Bring them to any opinion, including ours.

One more honest note: an unstable kneecap changes the mechanics of the whole knee, and a proportion of higher grade patella dogs go on to rupture their cruciate ligament. That link is part of the case for fixing significant luxations in young dogs, and part of why "wait and see" should be an active plan with reviews, not a shrug.

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Send the case, hear back from a surgeon with what they can do and what it costs, and only pay if you go ahead.

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Get a surgeon's opinion on your dog's kneecap

Send what your vet said and quoted. A veterinary surgeon reads it and comes back to you with what they can do and what it would cost, before you pay anything. A written second opinion is from $250.

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  • You hear back from a surgeon within 2 business days.
  • Patella surgery is quoted from $3,000 to $6,000 in Australia. A surgeon's read on your quote is the cheapest line in this decision.
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By sending this you agree to be contacted about your enquiry. Privacy policy. A written second opinion is from $250, confirmed before you pay.

Common questions

Can physio or a brace fix it instead?

Muscle strength helps symptoms, and physiotherapy is a genuinely useful part of managing low grades. But no exercise or brace changes the bone anatomy that lets the kneecap slip. For structural problems, the structural fix is surgery; everything else is management.

The vet found it but my dog seems fine. Do nothing?

Monitor deliberately: weight in the healthy range, note any skipping, review at each vet visit. Doing nothing on purpose with reviews is fine. Discovering at age eight that the knee quietly became grade 3 is what we are trying to avoid.

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