Knee Replacement Surgery (Total Knee Arthroplasty)
This page provides general information about knee replacement surgery (total knee arthroplasty) — what it involves, who it may help, how it is performed, and what to consider when planning treatment abroad. This information is for educational purposes only. Final medical advice must come from a qualified healthcare professional who has evaluated your individual case.
Overview
Knee replacement (total knee arthroplasty or TKA) is one of the most common and successful surgical procedures in modern medicine — and one of the most popular procedures in medical tourism. The procedure involves removing damaged cartilage and bone from the knee joint and replacing them with prosthetic components made of metal alloys and medical-grade plastics. In the United States, knee replacement typically costs $30,000-$50,000. In JCI-accredited hospitals abroad, the same procedure using the same implant brands costs $4,500-$9,000 — a potential savings of over $40,000.Who May Need This
Knee replacement may be appropriate for patients with severe knee arthritis causing persistent pain that limits walking, climbing stairs, and daily activities. Candidates have typically tried and not found adequate relief from medications, physical therapy, injections, and activity modification. Most patients are between 50 and 80 years old.When It May Be Recommended
Knee replacement may be recommended when knee pain significantly impacts quality of life despite conservative treatment, X-rays show advanced joint damage or bone deformity, pain medications cause unacceptable side effects or are no longer effective, and the patient is medically fit for surgery.Diagnosis and Evaluation
Before knee replacement, evaluation includes physical examination, weight-bearing X-rays of the knee, possibly MRI, blood tests, cardiac clearance, dental clearance (dental infections increase implant infection risk), and medication review.Treatment Options
Options include total knee replacement (all three compartments replaced), partial knee replacement (only the damaged compartment), non-surgical management (physical therapy, injections, bracing), and arthroscopic debridement (temporary relief but does not cure arthritis).How It Is Performed
Under general or spinal anesthesia, a 6-10 inch incision is made over the knee. Damaged cartilage and bone are removed from the femur, tibia, and patella. Metal components are fitted to the prepared bone surfaces and a plastic spacer creates a smooth gliding surface. The procedure takes 1-2 hours.Preparation
Complete pre-operative evaluation including blood work, cardiac clearance, imaging, and dental clearance. Stop certain medications as directed. Consider pre-habilitation exercises to strengthen supporting muscles. If traveling abroad, arrange medical visa, flights, accommodation, and a companion.Benefits and Expected Goals
Knee replacement aims to provide significant or complete relief from chronic knee pain, restore mobility and walking ability, improve quality of life and independence, and deliver long-lasting results (15-20 years for modern implants). Outcomes vary by patient.Risks and Possible Complications
Risks include infection (1-2% in accredited hospitals), blood clots (DVT), implant loosening or wear, nerve or blood vessel injury, stiffness requiring manipulation, and anesthesia-related complications. Obesity and smoking increase risk.Recovery, Follow-up & Aftercare
Hospital stay is 3-5 days. Patients walk with a walker for 2-4 weeks, transition to a cane by 4-6 weeks, and return to most activities by 3 months. Physical therapy is essential. Full recovery takes 6-12 months. Recovery varies by patient.Medical Tourism Planning
Choose a destination with JCI-accredited orthopedic centers. Plan for 10-14 days in-country. A companion is strongly recommended. Arrange follow-up care with your local orthopedist before traveling. Carry all medical records and implant information cards.Estimated Cost Factors
Cost depends on hospital accreditation, surgeon experience, implant brand and type, length of stay, surgical approach, and whether physiotherapy is included. Always confirm what a quoted price includes.Choosing a Hospital or Specialist
Verify JCI or ISO accreditation. Ask about the surgeon's fellowship training in joint replacement, annual case volume, and complication rates. Confirm which implant brands are available and why a specific brand is recommended.Alternatives
Partial knee replacement, non-surgical management (physical therapy, weight loss, injections, bracing), arthroscopic surgery (temporary relief), or osteotomy (bone realignment for younger patients).Questions to Ask Your Doctor
- What type of knee replacement is most appropriate for my condition? - What implant brand do you use and why? - How many knee replacements have you performed and what are your outcomes? - What is included in the cost estimate? - How long will I need physical therapy? - What follow-up care will I need after returning home? - What warning signs should I watch for?✅Safety Checklist Before Traveling
Use this checklist to help ensure your safety when planning medical treatment abroad.
- Verify hospital accreditation (JCI, ISO, TEMOS)
- Verify specialist credentials and board certification
- Get a written treatment plan from your doctor
- Get a written cost estimate with included/excluded items
- Arrange follow-up care with your local doctor
- Confirm medical visa and travel documents
- Consider medical travel insurance
- Keep copies of all medical records and reports
- Share your travel plans with a family member or companion
- Know the emergency contact numbers at your destination
🚨 When to Seek Urgent Medical Help
Contact a healthcare provider immediately if you experience any of the following:
- • Severe chest pain or difficulty breathing
- • Heavy or uncontrolled bleeding
- • Sudden weakness, confusion, or loss of consciousness
- • Severe allergic reaction (swelling, rash, difficulty breathing)
- • High fever (above 101°F / 38.3°C) after a procedure
- • Worsening pain, redness, or swelling at a surgical site
- • Any symptom that feels severe, unexpected, or concerning to you
If you experience sudden severe pain, swelling, redness, or fever above 101°F (38.3°C) after knee replacement, seek immediate medical attention — these may indicate infection or blood clot.
🚨 If you have a life-threatening emergency, call local emergency services immediately. Do not wait.
Frequently Asked Questions
Modern knee implants typically last 15-20 years or more. Implant longevity depends on patient activity level, weight, implant type, and surgical technique. Younger, more active patients may need revision surgery earlier.
Patients typically save 60-85% compared to US prices. Knee replacement in India costs $4,500-$7,000 vs $30,000-$50,000 in the US.
Most patients stand and walk with a walker within 24 hours of surgery. You will progress from walker to cane over 2-6 weeks. Full recovery of walking ability takes 3-6 months.
Plan for 10-14 days in-country: 3-5 days in hospital plus 7-10 days for initial recovery and follow-up. Your surgeon must clear you for flying before departure.
The best implant depends on your age, activity level, weight, and bone quality. Common brands include Zimmer Biomet, Stryker, DePuy Synthes, and Smith & Nephew. Your surgeon will recommend the most appropriate implant for your case.
References
This section lists sources supporting the information on this page. Content is periodically reviewed for accuracy.
- • AAOS Clinical Practice Guideline — Surgical Management of Osteoarthritis of the Knee
- • WHO Surgical Safety Checklist