Knee FAQ

Q: How long will my new knee last?
A: Modern knee replacements typically last 15-20 years or more. However, longevity can vary based on factors like activity level, weight, and overall health.

Q: When can I drive after surgery?
A: Most patients can resume driving 4-6 weeks after surgery, once they’re no longer taking narcotic pain medication and have regained adequate muscle control.

Q: Will I set off metal detectors with my new knee?
A: Yes, knee implants may set off metal detectors. Inform security personnel about your implant before screening.

Q: Can I kneel after knee replacement?
A: Kneeling is generally possible, if you’re able to do it prior to the surgery, but may be uncomfortable.

Q: Will I need to take antibiotics before dental procedures?
A: Guidelines vary, but it’s recommendd to take antibiotics before dental procedures for the first two years after surgery or for life.

Q: Can I play sports after knee replacement?
A: Low-impact sports like golf, swimming, and cycling are generally encouraged. High-impact activities like running may be harder to engage in and are likely to cause earlier wearing out or lossening of prosthesis.

Q: How much weight can I lift after knee replacement?
A: This varies based on your overall health and recovery. Generally, avoid lifting more than 20-25 pounds in the first 6-8 weeks.

Q: How long will I need to use a walking aid?
A: Most patients use a walker for 1-3 weeks, then transition to a cane for 2-6 weeks. Your physical therapist will guide you based on your progress.

Q: Can I have both knees replaced at the same time?
A: Bilateral (both knee) replacement can be done either simultaneously or staged a few months apart. The decision depends on your overall health and preference but the results are better with unilateral knee replacement and the risk of complications are higher with bilateral knee replacements.

Q: Will I need physical therapy after I leave the hospital?
A: Yes, continued physical therapy is crucial for optimal recovery. This may involve home visits, outpatient therapy, or a combination of both.

Q: When can I return to work?
A: Return to work varies by individual and job type. Office workers may return in 4 weeks and physically demanding jobs make take 3-4 months.