Quick answer: after TPLO, TTA or lateral suture surgery, your vet's plan does the healing: pain relief, strict rest, then slow, controlled exercise and physio. Once your vet is happy, a supplement can sit alongside that plan to support the operated knee and the joints doing extra work. Omega-3 has the best evidence, and a broad joint supplement is a sensible daily addition for the long rehab. Our recommendation: MedPaw Hip & Joint Chews, a soft chew with all six key joint actives, started when your vet agrees.
Transparency note: this page is written by MedPaw, which makes a joint supplement. Sources are linked so you can check them. Checked 9 October 2026.
What happens to the knee after cruciate surgery
TPLO cuts and rotates the top of the shin bone so the knee is stable without the torn ligament, with a plate holding it while it heals. TTA moves the front of the shin bone forward with an implant. A lateral suture places a strong suture outside the joint while scar tissue firms up, and is more often used in smaller dogs.
The American College of Veterinary Surgeons (ACVS) says TPLO and TTA need several weeks of confinement while the bone heals, and that rehabilitation should start straight after surgery. It also notes that up to 50% of dogs with cruciate disease in one knee develop it in the other, usually within 12 to 18 months. That second knee is a big reason owners think about long-term joint support.
For the full recovery guide, read recovering from cruciate surgery; for how the operations compare, see dog joint surgery explained.
Where a supplement fits in your vet's plan
Every surgeon's plan is different, so follow yours. As a guide, published post-operative TPLO instructions such as Anicira Veterinary Center's follow this pattern:
A typical TPLO recovery, and where a supplement fits
| Stage | What your vet's plan usually involves | Supplement |
|---|---|---|
| Weeks 1 to 2 | Pain relief, confinement, brief lead-only toilet trips, gentle range-of-motion exercises if shown how | Not yet. Let your dog settle on their post-operative medication |
| Weeks 3 to 6 | Short, slow lead walks of around 5 minutes, building to 10 minutes, 3 to 5 times a day; first X-rays at around 6 to 8 weeks | Ask at the first recheck whether you can start one now |
| Weeks 7 to 14 | Walks build towards 30 to 45 minutes with gentle hills; second X-rays around 12 to 14 weeks | Give daily. This is when the operated knee and the other back leg work hardest |
| After about 14 weeks | A gradual return to normal; no full-speed running or rough play with other dogs for about another month | Many owners continue long term, alongside a lean weight |
A supplement isn't part of the first fortnight. Your dog is on post-operative medication and may be off their food, and a new upset stomach muddies the picture. Ask at the first recheck whether starting one now suits your dog.
When to call your vet
Supplements are not painkillers and won't fix a problem with the repair. Call your vet promptly if you notice:
- Your dog suddenly stops using the leg after they had started to put weight on it
- Swelling, heat, discharge, bleeding or a gaping wound at the incision, or constant licking at it
- Pain that seems worse rather than better, or panting at rest
- Off food or lethargic for more than 24 hours, vomiting, diarrhoea or dark stools
- A new limp on the other back leg
Our guide to a dog limping after surgery explains what's normal at each stage.
What actually helps recovery, vet and lifestyle first
- Stick to the restriction. Dogs often feel better before the bone has healed. Lead on, no jumping, no stairs, no rough play until your vet says so.
- Physio and hydrotherapy. A vet physiotherapist will set exercises to rebuild the thigh muscle the dog lost while limping. Hydrotherapy usually starts only once the wound has healed and your vet agrees. See what to expect from canine physiotherapy.
- Keep your dog lean. A resting dog needs less food, and every extra kilo goes through the knees. See weight loss for dogs with joint problems.
- Make the house safe. Rugs on slippery floors, a gate on the stairs and a ramp for the car.
- Rebuild muscle slowly. Our guide to rebuilding a dog's muscle after surgery or rest covers the safe build-up.
What to look for in a supplement after cruciate surgery
The most relevant study is a 2018 trial in dogs after TPLO, summarised by the BVNA (Baltzer et al., JAVMA). Dogs fed a protein-enriched diet with added omega-3 had better limb function and fewer signs of lameness and pain at six months than dogs on a standard diet. A companion paper (Verpaalen et al.) found the bone cut healed more slowly on X-ray in the test diet group, with unclear clinical significance. That's a good reason to agree timing with your vet.
Common supplement actives, graded by the evidence
| Active | What the evidence says | In MedPaw? |
|---|---|---|
| Omega-3 (EPA and DHA, usually fish oil) | The strongest evidence for comfort in dogs with arthritis in the 2022 review of 72 trials (Barbeau-Grégoire et al.) | Not as a fish oil. Green-lipped mussel is a natural source, but MedPaw doesn't replace a fish oil your vet recommends |
| Green-lipped mussel | Some small positive studies; weaker overall than omega-3 | Yes, 70mg per chew |
| Glucosamine and chondroitin | Widely used for cartilage support, but did not relieve pain in that 2022 review | Yes, 170mg and 70mg per chew |
| MSM, Boswellia, hyaluronic acid | Few, small studies in dogs; evidence is limited | Yes: MSM 185mg, Boswellia 30mg, plus hyaluronic acid |
Choose one product rather than stacking several on top of post-operative medication, and a format your dog will take every day without a fight.
How MedPaw fits
MedPaw Hip & Joint Chews: the facts
| MedPaw | |
|---|---|
| Format | Soft chicken and bacon flavour chew, given like a treat |
| Joint actives per chew | All six key joint actives: MSM 185mg, glucosamine 170mg, chondroitin 70mg, green-lipped mussel 70mg, Boswellia serrata 30mg, plus hyaluronic acid |
| Also per chew | Vitamin C 33mg, vitamin E 24 IU, zinc 3mg |
| How much | By your dog's weight, doubled for the first three weeks (see the feeding guide) |
| Guarantee | 60 days from delivery, for any reason; email bark@medpaw.co.uk, nothing to send back |
| Allergens | Contains mollusc (green-lipped mussel) and gluten (brewer's yeast); not suitable for dogs with a shellfish allergy |
| What it isn't | A medicine or painkiller. It's a complementary feed that supports joint health |
Our recommendation: once your vet is happy, usually at or after the first recheck, start MedPaw alongside the physio plan and keep going through the build-up months, when the operated knee and the other back leg are working hardest. Give it six to eight weeks before you judge it, and if you're not happy, email us within 60 days for a refund. If your dog takes anti-inflammatories or other medication, check with your vet first. Try MedPaw Hip & Joint Chews.
If your dog has lost a lot of thigh muscle, read the best supplement for a dog losing muscle. If your vet has suggested managing a cruciate tear without an operation, see supplements for a cruciate tear without surgery. For other operations and injuries, see the best recovery supplement for dogs.
Frequently asked questions
What is the best supplement after TPLO surgery?
Omega-3 has the strongest evidence, including a trial in dogs after TPLO, and a broad joint supplement is a sensible daily addition for the operated knee and the other joints doing extra work. We'd recommend MedPaw Hip & Joint Chews, a soft chew with all six key joint actives and a 60-day money-back guarantee. Start it when your vet agrees, not in the first days after surgery.
When can my dog start a joint supplement after cruciate surgery?
Ask your vet, usually at the first recheck or when the stitches come out. Most vets prefer nothing new in the first week or two while your dog is on post-operative medication, so any stomach upset can be judged properly.
Can a supplement help the bone heal faster after TPLO?
There's no good evidence that any supplement speeds up bone healing after TPLO or TTA. A joint supplement is there to support the joints through rehab and beyond, not to heal the bone.
Will a joint supplement stop my dog's other cruciate going?
No supplement has been shown to prevent cruciate disease in the other knee. Keeping your dog lean, building muscle steadily and avoiding sudden twisting play are the most useful things you can do.
Can my dog have a joint supplement with Metacam or other painkillers?
Joint supplements are commonly given alongside anti-inflammatories, but always check with your vet first, especially in the weeks after surgery. Take the tub with you so your vet can see the label.
