Partial Knee Replacements: Benefits, Risks, Recovery & Cost

Partial knee replacement surgery is becoming a popular alternative to total knee replacement, especially for patients with arthritis in only one part of the knee. If you’ve been told you might need knee surgery, understanding this option can help you make a more informed decision.

What Is a Partial Knee Replacement?

A partial knee replacement (also known as unicompartmental knee replacement) is a surgical procedure where only the damaged part of the knee joint is replaced with an implant. Unlike total knee replacement, healthy cartilage, ligaments, and bone are preserved.

Who Is It For?

Doctors typically recommend partial knee replacement for:

• Patients with arthritis limited to one compartment of the knee.
• People with stable ligaments and relatively healthy cartilage.
• Individuals who have tried non-surgical treatments (medications, injections, therapy) without success.

Benefits of Partial Knee Replacement

• Faster Recovery: Smaller incision means shorter hospital stays and quicker rehab.
• More Natural Movement: Preserves healthy parts of the knee, resulting in better range of motion.
• Less Pain: Many patients report reduced post-surgical pain compared to total knee replacement.
• Durability: Modern implants can last 10–15 years or more.

Risks and Drawbacks

Like any surgery, partial knee replacement carries some risks:

• Infection or blood clots.
• Implant loosening over time.
• Possibility of needing a full knee replacement later if arthritis progresses.

Recovery Timeline

• First 1–2 weeks: Walking with assistance, light exercises.
• 4–6 weeks: Increased mobility, many patients return to daily activities.
• 3–6 months: Full recovery and ability to resume low-impact activities like swimming, cycling, or walking.

Cost of Partial Knee Replacement

The cost can vary widely depending on hospital, surgeon, and country:

• United States: $30,000 – $40,000 (before insurance).
• India & Asia: $4,000 – $8,000.
• UK (NHS/private): Free under NHS if eligible, private costs £10,000 – £15,000.

Always consult with your doctor and insurance provider for accurate estimates.

Conclusion

Partial knee replacement can be a life-changing procedure for patients with localized knee arthritis. It offers quicker recovery, more natural knee function, and reduced pain — but it’s not suitable for everyone. Always consult your orthopedic surgeon to decide whether this surgery is the right choice for you.

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❓FAQs

Q1. How long does a partial knee replacement last? Most implants last 10–15 years, sometimes longer with proper care. Q2. Is partial knee replacement better than total knee replacement? It depends. Partial replacement has faster recovery and preserves more natural movement, but it’s only suitable if arthritis affects a limited area of the knee. Q3. How painful is partial knee replacement recovery? Pain is usually less than total replacement, and many patients manage with prescribed medications and therapy. Q4. Can I play sports after partial knee replacement? Low-impact sports like swimming, cycling, and golf are typically safe. High-impact activities may not be recommended.