Post Knee Replacement Rehab

The surgeon replaces the worn cartilage surfaces of the knee with metal and polyethylene components. After closure, your knee needs to learn to bend, straighten, and carry load again. TKR rehab focuses on:

• Regaining flexion (knee-bending): the goal is usually ≥110 degrees by 3 months, ≥120 by 6 months
• Regaining extension (straightening): a stiff-in-extension knee makes walking exhausting
• Rebuilding quadriceps strength (the muscle shuts down after surgery and needs months to wake up)
• Gait retraining — often with a walker, then a cane, then unaided
• Managing swelling and pain across the first 6–12 weeks
• Restoring confidence on stairs and uneven ground (Seremban Chinatown lanes, the Jalan Tuanku Munawir pavements, Lake Gardens Seremban slopes)

The surgeon at KPJ Seremban Specialist Hospital, Columbia Asia Seremban or Mawar Medical Centre sets the protocol (which movements are restricted, what weight-bearing is allowed). The physio stays inside those lines while pushing you forward every session.

Typical trajectory:

• Week 0–1: inpatient at the surgical hospital; physio starts at the bedside. Discharge when medically stable, walking with a walker, and the surgical team cleared
• Week 1–4: home-visit physio 2–3× weekly. Pain and swelling management, gentle flexion work, gait retraining, sit-to-stand practice. Typical home visit RM 150–300
• Week 4–8: usually transition to outpatient clinic. Sessions RM 100–180. Flexion targeting 90–110 degrees, strengthening quadriceps, single-leg balance work
• Week 8–12: active strengthening, stair work, longer walks. Cane usually discarded
• Month 3–6: return to community walking, light exercise, sometimes stationary cycling at home or the clinic
• Month 6–12: final gains in range, strength, and confidence; some patients keep quarterly check-ins

Expect 20–40 physio sessions total. The physio should re-test range, quadriceps strength, and gait at each milestone and escalate if progress stalls.

Approximate targets (varies by surgeon and patient):

• Week 1: able to walk with a walker within the house, flexion 60–70 degrees
• Week 4: flexion 90+, straight-leg raise without lag, walking short distances with a cane
• Week 6: flexion 100+, walking community distances, off the walker
• Week 12: flexion 110–120, off the cane, stair-climbing with confidence, return to most daily activities
• Month 6: final range usually reached (120+), patient feels largely 'normal' walking
• Month 12: continued strength and confidence gains; the new knee feels part of the body

If range stalls before 90 degrees at week 6, the surgeon at KPJ Seremban Specialist Hospital or Mawar Medical Centre may consider manipulation under anaesthesia. Flag slow progress early — the physio and surgeon should be in contact.

Continue physio if:

• Pain and swelling are reducing week-to-week
• Range is progressing towards milestones
• The wound is dry, healed, and non-red
• You're hitting the surgeon's expected targets at follow-up appointments

Go to A&E at Hospital Tuanku Ja'afar — not a physio — if any of these appear after knee replacement: sudden calf swelling and pain (possible DVT), sudden chest pain or shortness of breath (possible PE), fever above 38°C with redness and discharge from the wound (possible infection), sudden inability to bear weight that was previously OK (possible loosening or peri-prosthetic fracture), severe pain at rest that wakes you every night after previously being manageable, or any new neurological symptoms in the leg. Contact the surgical team at KPJ Seremban Specialist Hospital, Columbia Asia Seremban or Mawar Medical Centre urgently for any unexplained worsening.