Cruciate ligament surgery gives a dog's knee the structural repair it needs, but the surgery itself is only half the recovery. What happens in the following eight to twelve weeks (the controlled loading, the rebuilding of muscle lost to crate rest, the gradual return to normal movement) is what determines whether a dog comes back to full function or is left with a compensating gait.
Why controlled loading matters
Too little activity and the muscle around the joint continues to waste, leaving the repair under-supported. Too much, too soon, and there's a real risk of re-injury or a problem developing in the opposite leg, which is already carrying extra load from weeks of favouring the operated side. The right amount changes week by week, which is why a generic printed sheet rarely fits. A plan built around your dog's own recovery, and adjusted at review points, works far better than a fixed schedule followed regardless of how things are going.
What a realistic first few weeks looks like
- Weeks 1–2: Short, lead-only toilet breaks, no stairs, no jumping onto furniture
- Weeks 3–4: Slow, controlled lead walks begin to extend, still avoiding slippery floors
- Weeks 5–8: Gentle strengthening exercises introduced: sit-to-stand repetitions, weight shifting, low obstacles
- Weeks 8–12: Gradual return to off-lead exercise, with running and turning reintroduced last
These ranges are illustrative. Every dog's actual timeline depends on their surgery, their age, and how the knee is responding, which is exactly what gets reviewed and adjusted at each physiotherapy session.
Three exercises worth getting right
Sit-to-stand repetitions build quadriceps strength without impact, and are usually one of the first strengthening exercises introduced. Weight-shifting exercises, gently rocking a dog's weight side to side while standing, rebuild proprioception (the sense of where the leg is in space), which surgery and rest both disrupt. Controlled figure-of-eight walking at a very slow pace reintroduces the turning and pivoting movements that are usually the last thing to fully recover.
Signs to stop and check in
Increased swelling, new lameness after an exercise session, or reluctance to bear weight that wasn't there the day before are all reasons to pause and get in touch rather than push through. Recovery from cruciate surgery is rarely a straight line, and catching a setback early is far easier to manage than working around one that's gone unaddressed for a week or two.