What you might notice at home
Cruciate injury rarely announces itself. Owners usually describe a limp that appeared after ordinary play, improved with a few days of rest, and then came back — often worse. That pattern of improvement and relapse is characteristic, and it is the reason the injury is so often left for months.
- Limping that comes and goes, then becomes constant
- Sitting with one leg kicked out to the side
- Reluctance to jump, use stairs, or rise after resting
- A clicking sound from the knee when walking
- Sudden non-weight-bearing lameness after play
Why rest alone usually is not enough
Rest reduces inflammation, which is why the limp improves. It does not repair the ligament. A knee that remains unstable keeps producing inflammation every time the dog uses it, and that ongoing instability is what drives arthritis in the joint over the following months and years.
Some small dogs do stabilise with scar tissue and manage with rest and medication. The joint remains unstable, and arthritis usually progresses. In most dogs, surgical stabilisation gives the most reliable return to comfortable function.
How the diagnosis is made
Diagnosis is an orthopedic examination and gait assessment, followed by digital radiographs to confirm the finding and plan the procedure. Imaging also rules out the other things that cause a hind-leg limp — and there are several, which is why a limp is worth examining rather than guessing at.
What surgery involves
TPLO — tibial plateau leveling osteotomy — is the procedure most often recommended for an active or medium-to-large dog. It changes the geometry of the top of the tibia so the knee no longer depends on the torn ligament for stability.
At Surgery For Pets it is performed as same-day outpatient surgery, with a dedicated technician monitoring anesthesia from induction through recovery and pain control started before the first incision.
- Most patients bear weight on the leg within 1 week and are walking comfortably within two weeks
- Bone healing takes about 8 weeks, confirmed by recheck radiographs
- Strictly controlled activity for 8 weeks — the part that most affects the outcome
- Return to normal activity typically at 12–16 weeks
The part owners underestimate
Controlled activity during the healing period is the single biggest factor in how well a dog does. The surgery creates the conditions for healing; the eight weeks afterwards determine whether it heals well. A dog that feels better at three weeks and is allowed to run is the most common avoidable complication.
General information only, and not a substitute for examining your pet. Every animal is different — talk to us or to your own veterinarian before making a decision.
