Knee replacement surgery, or knee arthroplasty, is a procedure in which damaged knee joint surfaces are removed and replaced with prosthetic components. These components are usually made of high-grade metal alloys, medical-grade ceramics, and durable polyethylene to mimic the natural motion of the knee while ensuring durability.

The knee is a weight-bearing joint, constantly subjected to stress during walking, running, or standing. Damage to its cartilage or bone can result in chronic pain, stiffness, and restricted mobility. Knee replacement surgery is generally recommended for patients experiencing:

• Severe Osteoarthritis: Degeneration of cartilage causing bone-on-bone friction, pain, and deformity.
• Rheumatoid Arthritis: An autoimmune condition causing inflammation, swelling, and joint damage.
• Post-Traumatic Arthritis: Arthritis developing after previous fractures or injuries to the knee.
• Congenital or Acquired Deformities: Structural abnormalities impacting mobility and stability.

The main objectives of knee replacement are to restore joint function, relieve chronic pain, and improve overall quality of life.

Choosing the right surgical approach depends on the extent of joint damage, age, lifestyle, and medical history. Let’s examine each type in detail.

Total Knee Replacement (TKR)

• What It Is: In TKR, the surgeon replaces the entire knee joint, including the femoral (thigh bone) and tibial (shin bone) surfaces, sometimes also the patella (kneecap).
• Ideal Candidates: Patients with severe arthritis or widespread joint damage that cannot be addressed by partial replacement.
• Benefits: Provides complete pain relief across the knee; improves stability and joint alignment; long-term durability with prosthetics lasting 15–20 years or more.
• Recovery: Full recovery generally takes 3–6 months; early physiotherapy is crucial.

Partial Knee Replacement (PKR)

• What It Is: Only the damaged portion of the knee is replaced, preserving healthy cartilage and ligaments.
• Ideal Candidates: Patients with arthritis limited to one compartment: medial, lateral, or patellofemoral.
• Benefits: Less invasive than total knee replacement; shorter operative time and faster recovery; reduced post-operative pain and complications.
• Recovery: Most patients return to normal daily activities in 6–8 weeks; maintain more natural knee function.

Additional Consideration: PKR is often preferred for younger, active patients who need to retain maximum mobility.

Robotic Knee Replacement Surgery

• What It Is: A computer-assisted robotic system guides the surgeon for precise bone cuts and accurate implant placement.
• Ideal Candidates: Patients seeking high-precision surgery with minimal tissue damage; those with unique knee anatomy requiring customized alignment.
• Benefits: Optimized implant positioning; reduced post-operative pain and swelling; faster recovery; increased implant longevity.

     Important Balance on Robotic Surgery:

• Robotic-assisted surgery improves implant alignment precision. However, multiple randomized trials show no significant difference in pain relief or functional scores at 1–2 years compared to conventional TKR performed by an experienced high-volume surgeon. The additional cost may not be necessary for all patients. Discuss both options with your surgeon.
• Recovery: Often faster than traditional methods, allowing early mobilization. Close follow-up ensures long-term success.

Revision Knee Replacement

• What It Is: Performed when a previous knee replacement fails due to loosening, infection, or wear.
• Ideal Candidates: Patients experiencing persistent pain, instability, or functional limitations after a previous surgery.
• Benefits: Restores knee function after failed surgery; corrects deformities; reduces chronic pain.
• Recovery: Slightly longer than initial replacement due to scar tissue; requires close monitoring.

Knee replacement is considered when non-surgical treatments fail and daily life is affected. Key indicators include:

• Persistent knee pain during walking, standing, or climbing stairs
• Stiffness limiting joint movement
• Swelling and chronic inflammation unresponsive to medication
• Knee deformity or instability

Difficulty performing daily activities, impacting quality of life

• Protein-rich foods: Include eggs, chicken, fish, paneer, and legumes to support tissue repair and muscle strength.
• Calcium & Vitamin D: Consume milk, curd, cheese, almonds, and get sunlight exposure to strengthen bones and support the new joint.
• Fruits & vegetables: Eat citrus fruits, berries, spinach, and carrots to boost immunity and speed up healing.
• Whole grains: Choose brown rice, oats, and whole wheat for better energy and digestion during recovery.
• Healthy fats: Add nuts, seeds, and olive oil to help reduce inflammation.
• Hydration: Drink enough water to improve circulation and prevent constipation after surgery.
• Foods to avoid: Limit processed foods, excess sugar, fried items, and carbonated drinks for a smoother recovery.

Pain is a natural part of post-surgical recovery, and Pain After Knee Replacement Surgery is manageable with modern protocols:

• Pre-emptive analgesics to reduce pain before surgery
• Regional anesthesia or spinal blocks for minimal operative discomfort
• Post-operative pain medications and anti-inflammatories
• Structured physiotherapy to prevent stiffness

Early walking and exercises improve blood circulation, reduce swelling, and increase the lifespan of the implant.

Recovery is a gradual process and requires structured rehabilitation for optimal results:

• Day 1–3: Gentle movement, walking with a walker, and basic knee exercises.
• Week 1–2: Longer walking sessions, guided physiotherapy, and pain management.
• Week 3–6: Strengthening exercises, improved knee flexibility, and increased independence.
• Month 3: Resume work, light sports, and household tasks.
• Month 6–12: Full recovery with more strenuous activities, sports, and normal daily life.

Following a structured physiotherapy program and adhering to medical advice ensures long-term joint health.

No surgery is without risk. A trustworthy surgeon will explain these clearly and honestly. Below are approximate incidences for primary TKR in high-volume Chennai centers:

• Superficial infection: 1–2% – Prevented with antibiotics and sterile wound care.
• Deep infection: <1% – Requires pre-op screening and laminar airflow OT.
• Deep vein thrombosis (DVT): 1–2% – Early mobilization, blood thinners, compression stockings.
• Implant loosening: 5–10% at 15–20 years – Regular annual follow-up X-rays.
• Nerve injury (peroneal): Rare (<0.5%) – Minimized by surgical expertise.
• Persistent stiffness: 5–10% – Managed with aggressive physiotherapy or manipulation under anesthesia.

If you notice any unusual symptoms or warning signs after surgery, contact your surgeon without delay:

• Fever >101°F (38.3°C)
• Calf pain, swelling, or redness (possible DVT)
• Wound redness, warmth, or foul drainage
• Sudden shortness of breath or chest pain
• Inability to bend the knee beyond 30° by week 2

Complete these 2–4 weeks before surgery:

• Obtain medical clearance (cardiac, diabetic, pulmonary evaluation)
• Stop blood thinners (aspirin, clopidogrel, warfarin) as advised by surgeon – do NOT stop on your own
• Donate autologous blood if recommended (rarely needed now)
• Pre-hab: Strengthen quadriceps, hamstrings, and upper body (for crutches/walker) – proven to speed recovery
• Arrange home setup: raised toilet seat, shower chair, grab bars, ice packs, slip-free rugs
• Prepare frozen meals or arrange help for first 2 weeks
• Stop smoking (at least 4 weeks prior) to reduce infection and healing complications

• The cost of knee replacement surgery in Chennai varies depending on several factors related to treatment quality and patient needs. It is not fixed, as each case requires a personalized approach.
• The overall cost is influenced by the hospital’s infrastructure, where advanced hospitals with modern facilities may charge more. The type of implant used also plays a major role, as high-quality or imported implants can increase the expense. Additionally, the surgical method matters traditional procedures are generally more affordable, while robotic-assisted surgery involves advanced technology and may cost more.
• Another important factor is the surgeon’s experience, as highly skilled specialists may charge higher fees. The room type chosen during the hospital stay, such as shared or private, can also affect the final cost. Along with this, pre- and post-surgical care like tests, medications, and physiotherapy are included in the overall expenses.
• Most hospitals in Chennai provide comprehensive packages that cover surgery, hospital stay, and basic rehabilitation. Many also offer insurance support making treatment more accessible and manageable for patients.

Nasir Ahmed

"I came for knee pain to consult Dr. Madan Mohan Reddy. The doctor clearly explained the condition and recommended injections, medication, and physiotherapy. Right now I feel pain free.

Ronju Ronju

"My father has had a right knee replacement by Dr. Madan Mohan Reddy Sir. The operation got successful and he is OK now. The exercises done by Physiotherapist Ramkumar Sir went very smoothly and he explained all exercises clearly. My heartfelt thanks to Dr. Madan Mohan Reddy Sir. Also thanks to Physiotherapist Ramkumar Sir."

For more authentic patient experiences and success stories, please visit our official testimonials page.

Chennai offers:

• World-class hospitals with advanced surgical technology
• Cost-effective procedures compared to international standards
• Experienced orthopedic surgeons like Dr. Madan Mohan Reddy and Dr. Karthik P Reddy with high success rates
• Access to robotic and minimally invasive surgery
• Patients benefit from expert care, affordability, and efficient rehabilitation.