Questions & Answers · Knee
When can I drive after a knee replacement?
Most patients return to driving about 4–6 weeks after knee replacement — often sooner for a left-knee replacement with an automatic transmission. The real test isn't a date: it's whether you can slam the brake hard, without hesitation, and while off narcotic pain medication.
The three gates you must clear
- Off narcotics. Driving on opioid pain medication is impaired driving — legally and actually.
- The emergency stop. In a parked car, stomp the brake like a child ran out. If you hesitate or wince, you're not ready.
- Your surgeon's go. Reaction-time studies are why the 4–6 week guidance exists; your knee gets the personalized version at follow-up.
Left knee vs. right knee
Automatic transmission + left knee replaced = many patients drive within 2–3 weeks, once off narcotics. Right knee (your braking leg) is the 4–6 week case. Manual transmission owners: both knees matter — plan on the longer timeline.
Medically reviewed by Keith W.V. Johnson, MD, FAAOS · Updated September 28, 2026