Knee Replacement

Frequently Asked Questions About Knee Replacement

Q 1: What is knee replacement surgery?

Knee replacement is a procedure where damaged joint surfaces are replaced with artificial components to reduce pain and improve function.

Q 2: When should I consider knee replacement?

When knee pain significantly affects your daily activities and does not improve with medicines, physiotherapy, injections, or lifestyle modifications.

Q 3: Is knee replacement only for elderly people?

No. While most patients are older adults, younger patients with severe arthritis may also benefit from surgery.

Q 4: Will my entire knee be removed?

No. Only the damaged cartilage and a small amount of bone are resurfaced and replaced with implants.

Q 5: How long does a knee replacement last?

Modern knee replacements commonly last 15–25 years or longer, depending on activity levels and individual factors.

Q 6: Is knee replacement a major surgery?

Yes, it is a major operation, but it is also one of the most successful and commonly performed orthopedic procedures worldwide.

Q 7: How painful is the surgery?

Pain is expected initially but is well controlled with modern anesthesia, medications, and rehabilitation protocols.

Q 8: How long will I stay in the hospital?

Most patients stay for 1–3 days, depending on recovery and overall health.

Q 9: When can I start walking after surgery?

Most patients begin standing and walking with assistance on the same day or the day after surgery.

Q 10: Will I need physiotherapy?

Yes. Physiotherapy plays a crucial role in regaining movement, strength, and confidence after surgery.

Q 11: How long does recovery take?

Most daily activities become easier within 6–12 weeks, while complete recovery may continue for several months.

Q 12: Can I climb stairs after knee replacement?

Yes. Most patients can comfortably climb stairs after adequate rehabilitation.

Q 13: Can I sit cross-legged after surgery?

Some patients can, but it is not guaranteed. The ability depends on flexibility, implant design, and individual recovery.

Q 14: Can I squat after knee replacement?

Many patients can perform partial squatting, but deep squatting may not be advisable or comfortable for everyone.

Q 15: Will I be able to drive?

Most patients can resume driving within 4–6 weeks, provided they have good control of the operated leg and are not taking strong pain medications.

Q 16: Are there alternatives to knee replacement?

Yes. Weight management, exercise, physiotherapy, medications, braces, and injections may help in earlier stages of arthritis.

Q 17: Is robotic knee replacement better?

Robotic systems can assist with implant positioning, but good outcomes depend more on proper patient selection, surgical planning, and surgeon expertise.

Q 18: Will I have a scar?

Yes. A surgical scar is unavoidable, but it typically fades and becomes less noticeable with time.

Q 19: What are the risks of knee replacement?

Potential risks include infection, blood clots, stiffness, persistent pain, implant wear, and the need for revision surgery.

Q 20: Can both knees be replaced together?

In selected patients, both knees can be replaced during the same operation. The decision depends on overall health and surgeon assessment.

Q 21: Will airport scanners detect my knee implant?

Sometimes. It is helpful to inform security personnel that you have a knee replacement.

Q 22: Can I exercise after knee replacement?

Yes. Walking, cycling, swimming, and low-impact exercises are encouraged after recovery.

Q 23: Can arthritis come back in the replaced knee?

The replaced surfaces do not develop arthritis, but surrounding tissues can still experience age-related changes.

Q 24: What happens if I delay surgery for too long?

Delaying surgery may lead to worsening deformity, muscle weakness, reduced mobility, and a more challenging recovery.

Q 25: What is the most important factor for a good outcome?

A combination of appropriate timing, realistic expectations, a well-performed surgery, and dedicated rehabilitation.

Q 26: How do I know if I am ready for knee replacement?

You may be ready if your knee pain regularly limits walking, climbing stairs, sleep, work, hobbies, or quality of life despite appropriate non-surgical treatment.