Knee pain can make even simple daily activities difficult. Walking to the market, climbing stairs, getting up from a chair or standing for a long time may become painful. For some people, medicines and physiotherapy provide relief. But when the knee joint becomes badly damaged and the pain continues, knee replacement surgery may be an option.
Many people worry when they hear the word surgery. They want to know whether it is necessary, how much time recovery takes, and whether they will be able to walk normally again. These are common concerns, and understanding the procedure can help you make a better decision.
At NE Ortho Care, Guwahati, we believe that patients should understand their treatment options before deciding on surgery. In this article, we explain knee replacement surgery in simple language, including when it may be needed, how it works, its benefits and what to expect during recovery.
What Is Knee Replacement Surgery?
Knee replacement surgery is an operation in which damaged parts of the knee joint are replaced with artificial components made from materials such as metal and medical-grade plastic.
The knee is one of the most important joints in your body. It helps you stand, walk, bend your legs and perform everyday activities. Over time, the smooth cartilage that protects the ends of the bones can wear away. When this happens, the bones may rub against each other, causing pain, swelling and stiffness.
Knee replacement surgery aims to reduce this pain and improve movement by replacing the damaged joint surfaces.
It is important to understand that not everyone with knee pain needs surgery. Many people improve with non-surgical treatments. The decision depends on the condition of the knee, the severity of symptoms and how much the problem affects daily life.
Why Is Knee Replacement Surgery Needed?
The most common reason for knee replacement surgery is osteoarthritis. It is a condition in which the protective cartilage inside the joint gradually wears down.
However, other health conditions and injuries can also damage the knee.
1. Osteoarthritis
Osteoarthritis often develops with age, although it can affect younger people too. As the cartilage wears away, the knee may become painful, stiff and swollen. Walking and climbing stairs may become increasingly difficult.
2. Rheumatoid Arthritis
Rheumatoid arthritis is a condition in which the immune system mistakenly attacks the body’s joints. It can cause inflammation, pain and damage to the knee over time.
3. Previous Knee Injuries
An old knee injury, fracture or ligament injury may increase the risk of joint damage. In some cases, this damage can lead to arthritis and long-term pain.
4. Severe Knee Damage
Some people develop significant joint damage due to other bone or joint conditions. When the damage becomes severe and other treatments do not provide enough relief, knee replacement may be considered.
What Are the Signs That You May Need Knee Replacement Surgery?
Knee pain does not automatically mean you need an operation. However, certain symptoms may indicate that you should consult an orthopaedic specialist.
Look out for the following signs:
- Persistent knee pain: Your knee hurts regularly, even while resting or sleeping.
- Difficulty walking: You cannot walk comfortably for short distances.
- Pain while climbing stairs: Going up or down stairs becomes difficult because of knee pain.
- Stiffness: You find it difficult to bend or straighten your knee.
- Swelling: Your knee frequently becomes swollen or inflamed.
- Reduced daily activity: You avoid shopping, travelling, household work or meeting friends because of knee pain.
- Limited relief from treatment: Medicines, physiotherapy, exercise or other recommended treatments have not provided enough relief.
If these symptoms are affecting your quality of life, an orthopaedic consultation can help identify the cause and the most suitable treatment.
What Are the Different Types of Knee Replacement Surgery?
The type of knee replacement depends on how much of the joint is damaged.
1. Total Knee Replacement
In total knee replacement surgery, the damaged surfaces of the main bones forming the knee joint are replaced with artificial components.
This procedure may be recommended when arthritis or joint damage affects a large part of the knee. The surgeon assesses the joint and decides which components are required.
2. Partial Knee Replacement
A partial knee replacement may be suitable when damage is limited to one part of the knee joint.
Because only the damaged section is replaced, the operation may involve less tissue disruption than a total knee replacement. However, it is suitable only for selected patients.
Your surgeon will examine your knee, review your X-rays and assess your overall condition before recommending either option.
How Is Knee Replacement Surgery Performed?
Before surgery, your doctor will review your medical history, symptoms and general health. You may need X-rays, blood tests and other investigations to check the condition of your knee and ensure you are fit for the operation.
The procedure usually involves the following steps:
Step 1: Anaesthesia
You will receive anaesthesia to help prevent pain during the operation. The type of anaesthesia depends on your health and the anaesthetist’s recommendation.
Step 2: Removing damaged surfaces
The surgeon carefully removes the damaged cartilage and a small amount of bone from the affected joint surfaces.
Step 3: Placing artificial components
The replacement components are positioned to create a new joint surface. The surgeon checks the alignment, stability and movement of the knee.
Step 4: Closing the incision
After checking the joint, the surgeon closes the incision and applies a dressing.
The operation often takes around one to two hours, although the actual time varies depending on the procedure and the patient’s condition.
What Are the Benefits of Knee Replacement Surgery?
For people with severe knee joint damage, knee replacement surgery can offer several benefits.
Reduced Knee Pain
One of the main goals is to reduce the pain caused by damaged joint surfaces. Many patients experience meaningful improvement after recovery.
Better Walking Ability
Reduced pain and improved joint function may make walking and standing easier.
Improved Daily Activities
Activities such as getting out of a chair, moving around the house and climbing stairs may become easier as strength and movement improve.
Better Quality of Life
When knee pain limits your daily routine, it can also affect your sleep, independence and social life. Successful treatment may help you return to more of the activities you enjoy.
Remember: Results vary from person to person. Knee replacement surgery cannot guarantee completely pain-free movement, and some people may continue to experience stiffness or discomfort.
What Is the Recovery Time After Knee Replacement Surgery?
Recovery is an important part of knee replacement surgery. The operation repairs the damaged joint surfaces, but your muscles and surrounding tissues also need time to heal.
Your recovery time depends on your age, general health, muscle strength, type of surgery and how regularly you follow your rehabilitation plan.
First Few Days
You may start standing and walking with assistance soon after surgery, depending on your condition and the medical team’s advice. A walker or crutches may be needed initially.
Your healthcare team will also explain how to manage pain, protect the wound and reduce the risk of complications.
First Six Weeks
During this period, physiotherapy and prescribed exercises help improve knee movement and muscle strength. You may gradually become more comfortable with everyday activities.
Do not compare your progress with another patient’s recovery. Each person heals at a different pace.
Six to Twelve Weeks
Many patients gradually return to more normal daily activities during this period. However, you may still experience swelling, stiffness or discomfort.
Your surgeon and physiotherapist will guide you on walking, driving, returning to work and increasing your activity safely.
Three Months and Beyond
Further improvement can continue for several months. Some people need longer to regain strength and confidence in their knee.
Following your exercise plan and attending follow-up appointments are important for a good recovery.
Tips for a Better Recovery After Knee Replacement Surgery
Your actions after surgery can make a difference to your recovery. Follow your surgeon’s instructions rather than trying to recover too quickly.
Here are some helpful tips:
- Attend physiotherapy sessions: Exercises help improve movement and strengthen the muscles around the knee.
- Follow your exercise plan: Perform only the exercises recommended by your healthcare professional.
- Use walking support when needed: Do not stop using a walker or crutches until it is safe to do so.
- Keep the wound clean: Follow the instructions provided by your medical team.
- Manage swelling: Rest, elevate your leg and use ice only as advised by your healthcare professional.
- Eat a balanced diet: Adequate nutrition supports healing.
- Attend follow-up appointments: Your doctor needs to monitor your progress and check for possible problems.
- Avoid rushing into strenuous activities: Return to heavier work, driving and exercise only when your surgeon says it is safe.
Seek urgent medical attention if you develop sudden breathing difficulties or chest pain. Contact your medical team promptly if you notice increasing redness around the wound, discharge, fever or worsening pain and swelling.
Are There Any Risks of Knee Replacement Surgery?
Like every major operation, knee replacement surgery has potential risks. These may include:
- Infection around the wound or artificial joint
- Blood clots in the leg or lungs
- Bleeding
- Stiffness or reduced movement
- Ongoing pain
- Problems with the artificial joint over time
- Complications related to anaesthesia
The risk varies depending on your health, medical history and the type of procedure. Your orthopaedic surgeon and anaesthetist will explain the possible benefits and risks before surgery.
Good preparation, appropriate medical care and following post-operative instructions can help reduce some risks, but complications cannot be completely eliminated.
Can Knee Pain Be Treated Without Surgery?
Yes. Many people with knee pain do not need knee replacement surgery.
Depending on the cause and severity of the problem, your doctor may recommend:
- Physiotherapy and strengthening exercises
- Weight management, if appropriate
- Medicines for pain or inflammation
- Activity changes to reduce stress on the knee
- Walking support when needed
- Other treatments based on your diagnosis
These treatments may help manage symptoms and improve movement. However, when joint damage is severe and non-surgical treatment no longer provides enough relief, knee replacement may be considered.
The right approach is to understand the cause of your pain instead of assuming that surgery is the only option.
Where Can You Get Knee Replacement Surgery in Guwahati?
If knee pain is affecting your daily life, getting an accurate diagnosis is an important first step.
At NE Ortho Care, Guwahati, we provide orthopaedic consultation and care for knee pain, arthritis, sports injuries and joint-related problems. Dr. Samarjit Khanikar has specialised training in orthopaedics, arthroscopic surgery and joint replacement.
During your consultation, your symptoms, medical history and investigations can help determine whether you may benefit from non-surgical treatment or whether knee replacement surgery should be considered.
Every patient is different. Our focus is on understanding your condition and discussing suitable treatment options based on your individual needs.
If you are experiencing persistent knee pain, stiffness or difficulty walking, consider arranging an orthopaedic consultation to discuss your symptoms and treatment options.
Frequently Asked Questions About Knee Replacement Surgery
1. At what age is knee replacement surgery recommended?
There is no single age for knee replacement surgery. It is generally considered based on the severity of joint damage, pain, mobility and overall health rather than age alone.
2. Is knee replacement surgery very painful?
You may experience pain and discomfort after the operation, but your medical team will provide pain management. Discomfort usually improves as healing and rehabilitation progress.
3. How long does a knee replacement last?
Many modern knee replacements can last 15 to 20 years or longer, although this varies. The lifespan depends on factors such as the implant, activity level, overall health and complications.
4. Will I be able to walk normally after knee replacement surgery?
Many patients experience better walking ability after recovery. However, the result depends on your condition before surgery, muscle strength, rehabilitation and other health factors.
5. Is physiotherapy necessary after knee replacement surgery?
Yes. Physiotherapy is an important part of recovery. It helps improve knee movement, build strength and support a safe return to daily activities.
6. Does every person with arthritis need knee replacement surgery?
No. Many people manage arthritis with exercise, physiotherapy, weight management and medicines. Surgery may be considered when severe symptoms continue despite suitable non-surgical treatment.
Final Thoughts
Knee pain should not be ignored when it starts affecting your everyday life. Although knee replacement surgery can be helpful for people with severe joint damage, it is not the right treatment for everyone.
Understanding your symptoms, exploring available treatments and consulting an orthopaedic specialist can help you make an informed decision. With the right treatment and a well-planned recovery, many people are able to improve their mobility and return to activities that matter to them.
At NE Ortho Care, Guwahati, we encourage patients to seek advice early and understand all suitable treatment options for their knee problems. If knee pain is limiting your daily activities, arrange a consultation to discuss the next steps for your joint health.
Medical disclaimer: This article is for general educational purposes only and is not a substitute for a medical examination or personalised advice from a qualified healthcare professional.
