Knee pain that does not go away despite physiotherapy, medications, and steroid injections can severely affect daily life. For many patients across India, especially those above 55 years of age dealing with advanced osteoarthritis or rheumatoid arthritis, total knee replacement surgery has become a life-changing solution. Yet, the term "total knee replacement" often leads to confusion. Is it always the entire joint that is replaced? Are there different techniques? What suits one patient may not suit another.
This guide, put together by the specialists at Sports Orthopedics Institute in HSR Layout, Bengaluru, explains the various types of total knee replacement surgeries in plain language, helping you or your loved ones make an informed decision about treatment.
What Is Total Knee Replacement Surgery?
Total knee replacement (TKR), medically called total knee arthroplasty (TKA), is a surgical procedure in which the damaged surfaces of the knee joint are removed and replaced with artificial implants made of metal alloys and high-grade medical polyethylene plastic. The goal is to relieve chronic knee pain, restore alignment, and help patients return to daily activities.
The knee joint consists of three main compartments:
• The medial compartment (inner side of the knee)
• The lateral compartment (outer side of the knee)
• The patellofemoral compartment (front of the knee, between the kneecap and thighbone)
Depending on which compartments are affected and to what extent, the surgeon decides which type of knee replacement is most appropriate for a patient.
|
Key Fact: According to data from leading Indian orthopaedic associations, approximately 1.5 to 2 lakh knee replacement surgeries are performed across India every year, with numbers rising steadily as awareness improves and costs become more accessible. |
Types of Total Knee Replacement Surgery
There is no one-size-fits-all approach to knee replacement. Orthopedic surgeons evaluate each patient carefully before recommending a procedure. Below are the primary types of knee replacement surgeries performed in India today
1. Total Knee Replacement (TKR) / Total Knee Arthroplasty (TKA)
Total knee replacement is the most widely performed type of knee replacement surgery. In this procedure, all three compartments of the knee joint are resurfaced. The surgeon removes the damaged cartilage and bone from the ends of the femur (thighbone), tibia (shinbone), and sometimes the undersurface of the patella (kneecap), replacing them with metal and plastic components.
Who it is recommended for: Patients with advanced osteoarthritis affecting multiple compartments of the knee, those with rheumatoid arthritis causing widespread joint damage, or individuals whose pain and stiffness no longer respond to non-surgical treatments.
Approximate recovery: Most patients begin walking with support within 24 to 48 hours of surgery. Full recovery typically takes 3 to 6 months, with physiotherapy playing a key role.
Implant lifespan: Modern implants are designed to last 15 to 20 years or more with proper care and activity modification.
2. Partial Knee Replacement (PKR) / Unicompartmental Knee Replacement
As the name suggests, partial knee replacement involves resurfacing only the affected part of the knee. If arthritis or damage is limited to one compartment, the surgeon can replace just that section while preserving the healthy bone, cartilage, and ligaments in the rest of the joint.
There are three sub-types based on which compartment is involved:
• Medial unicompartmental knee replacement (the most common)
• Lateral unicompartmental knee replacement
• Patellofemoral arthroplasty (kneecap replacement)
Who it is recommended for: Patients whose arthritis is confined to one compartment of the knee and who have intact ligaments (especially the anterior cruciate ligament). Ideal for younger, more active patients who want a faster return to activities.
Advantages over total knee replacement: Smaller incision, reduced blood loss, faster recovery, and a more natural feel to the knee after surgery.
Important note: Not every patient qualifies. A thorough evaluation including X-rays, MRI, and clinical examination is needed to determine suitability.
To understand whether your knee pain warrants a partial or total approach, read our detailed resource on
knee pain causes and conditions.
3. Bilateral Knee Replacement
When arthritis has severely damaged both knees, bilateral knee replacement may be considered. This can be done in two ways:
• Simultaneous bilateral knee replacement: Both knees are operated on in a single surgical sitting under one anaesthetic session.
• Staged bilateral knee replacement: Each knee is replaced in separate surgeries, typically weeks or months apart.
Who it is recommended for: Patients with equally severe arthritis in both knees who are otherwise medically fit for a longer surgery. Simultaneous replacement is more convenient but requires intensive post-operative monitoring and a robust rehabilitation plan.
Consideration in Indian context: Many patients in India prefer the staged approach as it requires shorter hospital stays and allows one leg to support the body during the initial recovery of the other.
4. Revision Knee Replacement
A revision knee replacement is performed when a previously implanted knee prosthesis has failed due to wear, loosening, infection, instability, or fracture around the implant. It is a more complex procedure than a primary knee replacement.
The surgeon removes the old implant, addresses any bone loss or structural issues, and places a new, often more constrained prosthesis that can compensate for the weakened surrounding tissue.
Who it is recommended for: Patients who have had a prior knee replacement and are experiencing significant pain, instability, or implant failure. In India, with the growing number of primary replacements performed over the last two decades, the demand for revision surgeries is also rising.
Recovery: Longer and more demanding than primary replacement. Rehabilitation is intensive and requires close follow-up.
5. Robotic-Assisted Knee Replacement
Robotic-assisted knee replacement is one of the most significant advancements in orthopaedic surgery in recent years. The surgeon uses a robotic arm and computer navigation system to plan and execute the surgery with a much higher degree of precision than traditional manual techniques.
Before the procedure, a 3D model of the patient's knee is created using imaging data. The robotic system guides the surgeon to remove only the required amount of bone and place the implant with pinpoint accuracy, improving alignment and reducing the risk of complications.
Benefits: Greater accuracy in implant positioning, reduced risk of soft tissue damage, potentially longer implant life, and improved functional outcomes.
Who it is recommended for: Patients of all ages who are undergoing knee replacement and want the best possible precision. It is particularly valuable for younger, active patients where longevity of the implant is a priority.
Availability in India: Robotic-assisted knee replacement is now available at select advanced orthopaedic centres in metropolitan cities including Bengaluru, Chennai, Mumbai, and Delhi
6. Minimally Invasive Knee Replacement
Minimally invasive knee replacement uses smaller incisions (typically 8 to 10 cm compared to the traditional 20 to 30 cm) and muscle-sparing techniques that avoid cutting through major muscle groups. One popular approach is the subvastus technique, where the surgeon accesses the knee joint by going under the quadriceps muscle rather than through it.
Benefits: Less post-operative pain, reduced blood loss, shorter hospital stay, and faster rehabilitation.
Who it is recommended for: Patients with a normal body weight, no severe deformity, and adequate bone stock. Not suitable for all patients, particularly those with complex deformities or extensive bone loss.
7. High-Flex Knee Replacement
Standard knee replacement implants allow a range of motion up to approximately 120 degrees. High-flex implants are specifically designed to permit greater flexion, up to 155 degrees in some cases.
This is particularly relevant in the Indian context. Activities such as sitting cross-legged on the floor, squatting, performing namaz, or using an Indian-style toilet require a significantly higher degree of knee flexion than activities common in Western lifestyles. High-flex implants are designed to accommodate these functional requirements.
Who it is recommended for: Indian patients who wish to continue floor-based activities and cultural or religious practices that require deep knee bending after surgery.
|
Indian Context Note: Several leading Indian orthopaedic implant manufacturers and global companies offering India-specific high-flex implant options have gained considerable traction in cities like Bengaluru, Hyderabad, and Pune. Speak to your orthopaedic surgeon about implant choices that match your lifestyle. |
8. Gender-Specific / Patient-Specific Implants
Research has shown that the anatomy of the knee differs between men and women. Gender-specific implants are shaped to better fit the female knee, which tends to be narrower and has a different angle between the femur and tibia. Similarly, patient-specific or customised implants are manufactured based on pre-operative CT or MRI scans to create a prosthesis tailored to an individual's exact anatomy.
Benefits: Better fit can result in improved range of motion, fewer cases of implant overhang, and potentially higher patient satisfaction.
How Does the Surgeon Decide Which Type of Knee Replacement Is Right for You?
Choosing the correct type of knee replacement is a decision made after a thorough evaluation. At Sports Orthopedics Institute, our specialists follow a systematic process:
• Clinical history: Duration and severity of pain, affected activities, prior treatments
• Physical examination: Range of motion, knee alignment, ligament stability
• Imaging: Weight-bearing X-rays and MRI to assess compartmental involvement and bone quality
• Patient profile: Age, body weight, activity level, occupation, and lifestyle expectations
• Medical fitness: Evaluation by an internal medicine physician for anaesthetic suitability
The surgeon combines all this information to recommend the procedure most likely to give the patient the best long-term outcome.
Learn more about the full range of surgical procedures offered at Sports Orthopedics Institute.
Who Needs Knee Replacement Surgery? Common Conditions Treated
The following conditions commonly lead to knee replacement surgery in India:
• Osteoarthritis: The most common cause. Cartilage wears away over time, causing bones to rub together, resulting in pain, swelling, and stiffness. Particularly prevalent among patients above 55 years.
• Rheumatoid Arthritis: An autoimmune condition causing chronic joint inflammation and progressive cartilage damage.
• Post-Traumatic Arthritis: Arthritis that develops after a fracture, ligament injury, or meniscal damage. Can affect younger patients.
• Avascular Necrosis: Loss of blood supply to bone tissue leading to bone collapse in and around the knee joint.
• Failed Prior Procedures: When arthroscopy, osteotomy, or partial replacement no longer provides adequate relief.
When Should You See an Orthopaedic Surgeon?
Many patients delay seeking specialist care, assuming knee pain is simply a part of ageing. However, early evaluation can sometimes allow less invasive treatments to be effective for longer. You should consult an orthopaedic surgeon if:
• Knee pain persists for more than three months despite rest and medications
• You are unable to climb stairs, walk comfortably, or rise from a chair without significant pain
• Your knee has become visibly swollen or deformed
• Sleep is being disrupted by knee pain
• Your quality of life and independence are being affected
If you recognise these symptoms, book a consultation with our specialists at Sports Orthopedics Institute, Bengaluru.
What to Expect After Knee Replacement Surgery: Recovery Overview
Recovery timelines vary depending on the type of procedure, the patient's age, overall health, and adherence to physiotherapy. Here is a general recovery roadmap:
|
Timeline |
Total Knee Replacement |
Partial Knee Replacement |
|
Hospital Stay |
3 to 5 days |
1 to 3 days |
|
Walking (with support) |
Within 24 to 48 hours |
Within 24 hours |
|
Physiotherapy begins |
Day 1 post-surgery |
Day 1 post-surgery |
|
Return to daily activities |
6 to 8 weeks |
4 to 6 weeks |
|
Full recovery |
3 to 6 months |
2 to 4 months |
|
Implant lifespan |
15 to 20+ years |
10 to 20 years |
Cost of Knee Replacement Surgery in India: What to Expect
The cost of knee replacement surgery in India varies significantly based on the type of procedure, the implant brand, the hospital, the city, and the surgeon's expertise. As a general reference:
• Unilateral (single knee) total knee replacement: Approximately Rs. 1.5 lakh to Rs. 4 lakh depending on hospital and implant type
• Partial knee replacement: May be slightly lower in cost but depends heavily on implant selection
• Robotic-assisted knee replacement: Typically higher due to technology costs, but increasingly available at competitive rates in Bengaluru
• Bilateral knee replacement: Can be more cost-effective when both knees are replaced simultaneously, reducing overall hospital and anaesthetic costs
Most major health insurance policies and government schemes such as Ayushman Bharat cover knee replacement surgery. Patients are advised to check their policy coverage in advance.
Why Choose Sports Orthopedics Institute for Knee Replacement in Bengaluru?
Sports Orthopedics Institute, located in HSR Layout, Bengaluru, is led by Dr. Naveen Kumar L.V., a globally trained orthopaedic surgeon with fellowships from the United Kingdom and international certifications from Portugal, Italy, and Switzerland. With over 24 years of clinical experience and expertise in complex arthroplasty, Dr. Naveen and his team offer:
• Comprehensive pre-surgical evaluation with accurate diagnosis and minimal investigations
• Personalised treatment planning based on each patient's age, activity level, and lifestyle goals
• Access to the latest implant technologies including high-flex and patient-specific implants
• Advanced minimally invasive and muscle-sparing surgical techniques
• Structured physiotherapy and rehabilitation protocols from day one post-surgery
• Transparent, patient-first communication at every stage of care
Our team treats patients from across Bengaluru including HSR Layout, Koramangala, Marathahalli, Whitefield, Electronic City, and Jayanagar, as well as from other parts of Karnataka and neighbouring states. Meet our surgical team to learn more.
Risks and Complications: What Patients Should Know
Knee replacement is one of the safest and most successful elective surgeries performed today. However, as with any major surgical procedure, there are risks that patients should be aware of and discuss with their surgeon:
• Deep vein thrombosis (DVT): Blood clots in the leg veins. Preventive blood thinners and early mobilisation significantly reduce this risk.
• Infection: Rare but serious. Managed with strict sterile surgical protocols and prophylactic antibiotics.
• Implant loosening: May occur years after surgery, particularly with high-impact activities.
• Stiffness: Aggressive physiotherapy from the first day post-surgery minimises this risk.
• Nerve or blood vessel injury: Very rare with experienced surgeons.
• Allergic reaction to implant materials: Rare. Pre-operative metal sensitivity tests can be done when indicated.
The success rate of knee replacement surgery in India is very high. Studies consistently show that over 90 percent of patients report significantly reduced pain and improved function after surgery.
Preparing for Knee Replacement Surgery: Tips for Indian Patients
Preparation can make a meaningful difference to surgical outcomes and recovery. Here is what orthopaedic specialists recommend:
• Manage medical conditions: Blood sugar control is especially important for diabetic patients. High HbA1c levels increase the risk of infection.
• Weight management: Even a modest reduction in body weight before surgery reduces strain on the new implant and improves recovery.
• Stop smoking: Smoking impairs wound healing and bone integration. Patients are advised to stop at least four weeks before surgery.
• Pre-surgical physiotherapy: Strengthening the muscles around the knee before surgery (prehabilitation) leads to faster post-operative recovery.
• Home preparation: Arrange a raised toilet seat, non-slip mats, and a support rail in bathrooms. Clear pathways of rugs and obstacles.
• Caregiver support: Plan for a family member or caregiver to be present for the first two to four weeks at home.
Further Reading and Resources
For more in-depth educational content on knee conditions and treatments, visit the Bone and Joint School on our website.
Explore the full range of knee-related surgical procedures offered at Sports Orthopedics Institute.
Read clinical publications and research by our team: Publications.
For general medical information on knee replacement, you may also refer to:
• Indian Orthopaedic Association (IOA) - www.ioaindia.org
• National Institute of Health and Care Excellence (NICE) UK Guidelines on Knee Replacement
• American Academy of Orthopaedic Surgeons (AAOS) Patient Education Resources - orthoinfo.aaos.org
Frequently Asked Questions (FAQs)
Q1. What is the difference between total knee replacement and partial knee replacement?
Total knee replacement involves resurfacing all three compartments of the knee joint. Partial knee replacement addresses only the damaged compartment, preserving healthy bone, cartilage, and ligaments. The right choice depends on how many compartments are affected and other patient factors.
Q2. How long does a total knee replacement last?
Modern total knee replacement implants are designed to last 15 to 20 years or more. With appropriate activity modification and follow-up, many patients never require a second replacement. Younger, more active patients may eventually need a revision procedure.
Q3. Is total knee replacement painful? What about recovery?
There is pain in the first few days after surgery, which is well managed with prescribed pain medications. Most patients begin walking with assistance within 24 to 48 hours. Pain reduces progressively over weeks, and most patients are back to their routine activities within 6 to 8 weeks, with full recovery taking 3 to 6 months.
Q4. At what age is knee replacement recommended in India?
There is no strict age limit. In India, knee replacement is most commonly performed in patients between 55 and 75 years. Younger patients with severe post-traumatic arthritis or autoimmune conditions may also be candidates. The decision is based on clinical need and the degree to which knee pain is affecting quality of life.
Q5. Can I sit cross-legged or use an Indian toilet after knee replacement?
This is a common and very valid concern among Indian patients. Traditional total knee replacement implants typically allow flexion up to 120 degrees. High-flex implants, designed specifically for the needs of Asian patients, can permit greater bending. However, the ability to sit cross-legged or use a squat toilet varies by individual recovery and implant type. Discuss your lifestyle needs with your surgeon before surgery.
Q6. Is robotic knee replacement better than traditional knee replacement?
Robotic-assisted knee replacement offers greater precision in bone removal and implant positioning. Studies suggest it may lead to better alignment, reduced soft tissue damage, and improved patient satisfaction, particularly in complex cases. However, the outcomes of a well-performed conventional knee replacement are also excellent. Discuss whether robotic assistance is available and appropriate for your case.
Q7. Is knee replacement surgery covered under health insurance in India?
Yes, most comprehensive health insurance policies in India cover knee replacement surgery. Government schemes like Ayushman Bharat (PM-JAY) also include knee replacement for eligible beneficiaries. Confirm the extent of your coverage, including the implant cost, with your insurer before planning surgery.
Q8. What is revision knee replacement and when is it needed?
Revision knee replacement is a surgery to replace a failed or worn-out knee implant. It is typically required when the original implant loosens, wears out, becomes infected, or causes persistent pain. It is a more complex procedure than primary knee replacement and requires an experienced specialist.
Q9. How do I choose the right hospital for knee replacement in Bengaluru?
Look for a centre with experienced orthopaedic surgeons who specialise in knee arthroplasty, access to modern implant options, a dedicated physiotherapy and rehabilitation team, and transparent communication about surgical risks and costs. Sports Orthopedics Institute in HSR Layout, Bengaluru offers all of these under one roof.
Q10. What activities can I do after total knee replacement?
After full recovery, most patients can walk, swim, cycle, travel, and engage in recreational activities comfortably. High-impact activities such as running, jumping, or heavy lifting are generally discouraged to protect the longevity of the implant. Exercises like walking and swimming are actively encouraged.
Ready to Take the Next Step?
If you or a family member is experiencing chronic knee pain that is limiting daily life, a consultation with our specialists at Sports Orthopedics Institute can help you understand your options clearly. We believe in giving every patient the information they need to make a confident, informed decision.
Book an Appointment | Contact Us | Learn More About Our Knee Services