Introduction
Hip and knee replacement surgeries are common procedures designed to relieve pain, improve range of motion, and enhance the quality of life for individuals suffering from arthritis or joint damage. While these surgeries are highly effective, the recovery process is crucial for optimal results. Post-surgical physiotherapy plays a significant role in ensuring a smooth and successful recovery.

Hip Replacement (Total Hip Arthroplasty – THA)
Indications for Surgery:
- Osteoarthritis
- Hip fractures
- Rheumatoid arthritis
Procedure:
A damaged hip joint, including the ball-and-socket structure, is replaced with a prosthetic implant made of ceramic, plastic, or metal. This replacement restores mobility and reduces pain significantly.
Recovery Time:
While patients may resume normal activities within 6-12 weeks, full recovery and adaptation to the new joint can take up to a year.
The Role of Physiotherapy After Knee/Hip Replacement

Physiotherapy is an essential component of post-surgical recovery, helping patients regain strength, mobility, and function in their new joint. Key aspects of physiotherapy include:
Pain Management
- Manual therapy techniques
- Electrical stimulation
- Ice and heat application to reduce pain and inflammation
Restoring Joint Mobility and Flexibility
- Range of Motion (ROM) exercises to prevent stiffness
- Assisted movement and passive stretching techniques to enhance flexibility
Strengthening Muscles
- Strength training exercises targeting the quadriceps, hamstrings, hip muscles, and glutes
Improving Balance and Stability
- Use of assistive devices such as crutches, walkers, or canes to prevent falls
- Gait training for walking re-education
Immediate Post-Surgery Phase (0-2 Weeks)
Pain Management
- Medications: Opioids (if necessary), acetaminophen, and NSAIDs
- Ice therapy to reduce swelling and pain
- Elevation (for knee replacement) to minimize swelling
- Blood clot prevention using compression stockings or pneumatic compression devices
- Ankle pumps and leg movements to maintain circulation
Early Mobility & Rehabilitation
- Physical therapy starts within 24 hours post-surgery
- Hip Replacement: Avoid twisting or crossing legs
- Knee Replacement: Start gentle ROM exercises
- Use of a walker or crutches as guided by a physiotherapist
Early Rehabilitation Phase (2-6 Weeks)
This phase emphasizes increasing mobility, strength, and joint function.
Pain & Swelling Management
- Continued ice therapy after exercises
- Gradual reduction of opioid use while maintaining pain relief
- Elevation to control swelling
Mobility & Weight-Bearing
- Hip Replacement: Patients can bear weight on the leg but should avoid excessive bending or twisting.
- Strengthening exercises such as leg lifts and controlled squats
- Walking and balance training
Intermediate Rehabilitation Phase (6-12 Weeks)
- Increased weight-bearing exercises
- Improved flexibility and endurance
- Introduction to low-impact activities like swimming and stationary cycling
- Monitoring for complications like swelling, stiffness, or persistent pain
Advanced Rehabilitation and Long-Term Recovery (3-6 Months & Beyond)
- Progressive strengthening and endurance training
- Gradual return to normal activities
- Maintaining joint health through continued exercises
- Guidance on returning to sports or strenuous activities safely
Common Challenges and How to Overcome Them

Managing Pain and Stiffness
- Regular physiotherapy and adherence to prescribed exercises
- Use of pain management techniques such as ice therapy and medication
Dealing with Post-Surgical Fatigue
- Adequate rest and a balanced diet
- Gradual progression of physical activity
Psychological Aspects of Recovery
- Staying motivated and setting realistic expectations
- Seeking emotional support when dealing with anxiety or frustration
Tips for a Successful Recovery
- Follow all physiotherapy recommendations
- Consistency in performing rehabilitation exercises
- Proper diet and nutrition for bone and muscle strength
- Lifestyle adjustments to maintain joint health
Conclusion
Recovering from knee or hip replacement surgery requires commitment and patience. Physiotherapy plays a vital role in ensuring mobility, strength, and functionality in the new joint. By following rehabilitation guidelines and staying proactive in recovery, patients can achieve long-term success and a significantly improved quality of life. If complications or persistent pain arise, seeking professional medical help is crucial to avoid further issues.
FAQs for Post-Surgical Physiotherapy
Why is physiotherapy important after knee/hip replacement surgery?
Early intervention is key! Starting physiotherapy within days of an injury (once acute swelling subsides) can accelerate healing, reduce scar tissue, and prevent long-term complications. Always consult a physiotherapist first for personalized advice.
When should I start physiotherapy after surgery?
Physiotherapy typically begins within 24 hours after surgery in the hospital and continues for several weeks to months after discharge.
How long does post-surgical physiotherapy last?
The duration varies based on individual recovery, but most patients undergo physiotherapy for at least 6–12 weeks.
What kind of exercises will I need to do?
Physiotherapy includes gentle range-of-motion exercises, strengthening exercises, balance training, and walking practice.
Will physiotherapy be painful?
Some discomfort is normal, but your physiotherapist will ensure exercises are manageable and help improve your overall comfort.