Recovery, Frequently Asked Questions

Some pain and stiffness is normal for the first several weeks after knee replacement, generally most noticeable in the first two weeks and gradually improving from there. Most people are off stronger pain medication within about three weeks, moving to over-the-counter options if needed. If a specific activity leaves you sore afterwards, the usual advice is to do a little less next time rather than push through.

Swelling typically takes 10 to 14 days just to begin properly settling, and some swelling can persist for three to four months, occasionally longer. It's one of the slowest parts of recovery to resolve, even after pain has largely improved. Ice and elevation help manage it throughout.

Yes, feeling flat, discouraged, or low, particularly around two to three weeks after surgery, is a common and normal part of recovery. It's usually caused by a combination of disrupted sleep, medication, and the physical toll of surgery, and it generally lifts with time. If it persists or worsens, it's worth mentioning at your follow-up appointment.

Stiffness, particularly after sitting for a while or first thing in the morning, is very common after knee replacement. It comes from the swelling and the surgery itself, and gradually eases as recovery progresses. Regular, gentle range-of-motion exercises as guided by your physiotherapist are the key to improving this.

Many people notice clicking, popping, or clunking from the knee as they move in the early weeks after surgery. This is common and usually not a concern, it typically comes from the soft tissues and swelling adjusting around the new joint, and generally settles as the swelling reduces.

Signs of possible infection include increasing redness, warmth, or discharge from the wound, and fever. Some warmth and mild redness around the knee is normal in the early weeks, the signs to watch for are symptoms that are increasing rather than settling. Contact the rooms promptly if you notice any of these signs.

Contact the rooms if you notice fever, a wound that's increasingly red, warm, or discharging, a sudden or significant increase in pain or swelling, or calf pain, tenderness, or swelling. Chest pain or shortness of breath needs emergency care straight away, call 000 or go to your nearest emergency department rather than waiting to call the rooms.

Disrupted sleep is very common in the weeks after knee replacement and can genuinely take longer to settle than people expect, sometimes ten weeks or more. For many people it starts improving noticeably once walking and range of motion improve, and it's generally back to normal within three to six months.

Most people progress from a frame, to crutches, to a single stick, and eventually to no walking aid at all, though the exact pace varies considerably from person to person. Many people no longer need any aid by around six weeks, but this depends on individual recovery and should be guided by your physiotherapist and Professor Rodda rather than a fixed timeline.

Most people can manage stairs safely within the first couple of weeks after knee replacement, often using a handrail for extra support initially. Your physiotherapist will guide you on safe technique before you go home.

Most people return to driving once they have full control of the leg, can brake firmly in an emergency, are no longer taking pain medication that affects reaction time, and feel genuinely confident and safe behind the wheel. It's sensible to test this first in a quiet, low-traffic setting. Timing varies by person, confirm with Professor Rodda directly rather than assuming a fixed date.

This depends largely on the nature of your job. Desk-based or largely sedentary work is often manageable earlier in recovery, while physical or manual roles involving standing, lifting, or a lot of walking typically need considerably longer. This is worth discussing specifically at your follow-up appointment.

Walking and swimming are typically among the earliest activities reintroduced, well before higher-impact exercise. Return to a specific sport varies considerably by activity and by person, and is best discussed individually with Professor Rodda, activities involving sudden twisting, impact, or collision risk generally need more time than steady, low-impact activity.

Short trips are usually fine once you're walking comfortably and confidently. For longer journeys, particularly flights, blood clot risk is a real consideration in the weeks after surgery, so it's worth asking specifically about precautions before booking anything longer than a short trip.

Modern knee replacements are generally expected to last 15 years or longer, with many lasting considerably longer depending on the implant used, activity level, and individual factors.