Knee Replacement

Ideal candidates have severe knee arthritis causing persistent pain that has not responded to at least 6 months of conservative treatment including physical therapy, weight management, and injections. Surgeons generally consider patients over 50 and may require a BMI below 35-40 to reduce risks of infection and implant loosening.

Most knee implants use a cobalt-chromium femoral component paired with a titanium tibial tray and an ultra-high-molecular-weight polyethylene spacer. Titanium is lighter and mimics bone flexibility, while cobalt-chromium is harder and more wear-resistant. Your surgeon will select the best combination based on your age, weight, and activity level.

Cemented implants use bone cement for immediate fixation and remain the gold standard with the largest body of long-term evidence. Uncemented implants are press-fit and rely on bone growing into the surface over time, showing lower rates of aseptic loosening. Long-term revision rates are comparable between the two approaches.

Ask your overseas surgeon which implant brand and model they plan to use. Major manufacturers like Zimmer Biomet, Stryker, DePuy Synthes, and Smith & Nephew have global distribution and any orthopedic surgeon can service them. Request an implant identification card with exact component details. Your home orthopedic surgeon will need this for future imaging, physical therapy guidance, or any revision surgery.

Most orthopedic centers recommend staying near the hospital for 10-14 days after knee replacement for follow-up appointments and initial physiotherapy. Airlines typically require at least 2 weeks post-surgery before flying, and many patients find business-class seating helpful for the extra legroom. Plan for a minimum 3-week trip including pre-operative assessment.