Physiotherapy After Knee Replacement: The First 6 Weeks Recovery Guide
Direct Clinical Summary (Answer First)
In the first 6 weeks following knee replacement, home physiotherapy focuses on controlling swelling with cryotherapy, achieving 90 to 110 degrees of knee flexion, full extension (straightening), quadriceps muscle activation, and transitioning safely from walker to single cane.
Total Knee Replacement (TKR) is a life-changing surgery for severe knee osteoarthritis, but the surgical procedure is only half the battle. The final functional outcome depends almost entirely on structured post-operative physiotherapy delivered safely in the first 6 to 8 weeks.
Weekly Recovery Milestones (First 6 Weeks)
- 1Weeks 1-2: Swelling and pain management, ankle pumps, static quadriceps contractions, heel slides reaching 80-90 degrees flexion, safe walker walking.
- 2Weeks 3-4: Progressing knee flexion to 100-110 degrees, active straight leg raises without lag, safe stair climbing (good leg leads up, operated leads down).
- 3Weeks 5-6: Transitioning from walker to elbow crutch or stick, balance drills, gentle outdoor walking, returning to light household tasks.
| Symptom | Normal Expected Recovery | Requires Immediate Doctor Contact |
|---|---|---|
| Knee Warmth & Swelling | Moderate swelling around knee, reduced by ice and elevation | Rapidly worsening redness, heat spreading to calf, or fever |
| Pain Level | Soreness during and after exercise, controllable with medication | Severe, sudden throbbing pain unaffected by prescribed painkillers |
| Calf Sensation | Mild tightness from walking practice | Severe calf tenderness, swelling, or redness (possible DVT sign) |
Why Full Knee Extension is as Crucial as Bending
Many patients obsess over how far they can bend their knee (flexion), but achieving 0 degrees of full straightening (extension) is equally vital. Without full extension, you cannot walk with an upright posture and your quadriceps muscle must work twice as hard, leading to early fatigue.
Safe Stair Climbing Rule
Remember the clinical rule: 'Up with the good, down with the bad.' When going upstairs, step up first with your non-operated leg. When descending, place your cane/walker first, followed by your operated leg, and then your stronger leg.
What to Ask Before You Book
- •Are you experienced with my surgeon's specific post-TKR rehabilitation protocol?
Red Flags to Avoid
- ✕Therapists aggressively forcing knee flexion past severe pain, which can tear healing sutures or worsen hemarthrosis.
Frequently Asked Questions
How many days after hospital discharge should home physiotherapy start?
Typically within 24 to 48 hours after arriving home, following your surgeon's discharge instructions.
Related Home Care Services
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