Knee Replacement Recovery: The Week-by-Week Physiotherapy Timeline

The Surgery Is Half the Job — Rehab Is the Other Half

I want every patient to understand this before their operation: a total knee replacement gives you a new joint, but it does not give you movement, strength or confidence. Those are earned in the weeks afterwards, through physiotherapy. Two people can have the same surgery by the same surgeon and end up with very different knees — and the difference is almost always the rehabilitation.

The Week-by-Week Timeline

Days 0 to 14: Protect, Move, Straighten

You will be up and walking with a walker within a day or two. The priorities now are controlling swelling, getting the knee fully straight (extension), and beginning to bend it. Full straightening early is critical — a knee that heals slightly bent is very hard to fix later. Target around 0 to 90 degrees by the end of week two.

Weeks 2 to 6: Range and Walking

Stitches are out and the focus shifts to regaining bend, weaning off the walker to a stick, and reactivating the quadriceps muscle, which always switches off after surgery. Most patients are walking reasonable distances and managing stairs with technique by week six.

Weeks 6 to 12: Strength and Normal Life

This is the decisive window for range of motion — we push toward 0 to 120 degrees. Strengthening intensifies, balance work begins, and you return to most daily activities. What you achieve by week twelve largely sets your long-term result.

3 to 6 Months: Full Recovery

Strength, stamina and confidence continue building. Residual swelling settles. By six months most patients have a strong, functional, comfortable knee.

The Exercises That Matter Most

Heel props for full straightening, heel slides for bending, quad sets and straight-leg raises to wake the thigh muscle, and progressive sit-to-stand for functional strength. The specific dose and progression must match your range and pain — which is exactly what a physiotherapist tracks.

Why This Works Well Online

A freshly operated knee does not enjoy repeated car journeys to a clinic. Once your surgeon has reviewed the wound, I can measure your range of motion on camera, watch you walk and climb stairs, progress your programme precisely, and catch problems like a stiffening knee early — all from your home. This is one of the highest-value uses of online physiotherapy. My broader guide to physiotherapy after surgery covers the general principles.

Red Flags — Call Your Surgeon

Sudden severe swelling, increasing redness or warmth, fever, wound discharge, or calf pain and tenderness are not part of normal recovery — they can signal infection or a blood clot and need urgent medical attention, not exercise.

Start Rehab the Right Way

If you have a knee replacement scheduled or have recently had one, the best results come from starting structured physiotherapy early and keeping it consistent. Share your surgery details in the intake form and book an online consultation — I will build a week-by-week plan around your exact stage and keep you on track to the knee you were hoping for.