Recovering after knee arthroscopy

Overview

Knee arthroscopy is a type of keyhole surgery where a surgeon makes a few small cuts around your knee and uses a tiny camera to see inside and fix problems like torn cartilage or damaged ligaments. Recovery means letting your knee heal and slowly getting back to normal activities.

Yes, knee arthroscopy is one of the most common orthopaedic surgeries performed worldwide.

It affects people of all ages who have knee problems, such as athletes with sports injuries, older adults with worn cartilage, or anyone with a torn meniscus or ligament.

Symptoms

Common symptoms

• Mild to moderate pain around the knee
• Swelling for a few days to weeks
• Stiffness and limited range of motion
• A feeling of clicking or popping when moving
• Small amounts of bruising around the cuts

Symptoms in children

• Children usually heal faster but may still have pain and swelling
• They might need extra encouragement to rest and not overdo activities

Symptoms in older adults

• Older adults may have more swelling and take longer to recover
• They might need more help with walking and daily tasks at first

Causes

Main causes

• A torn meniscus (the cushion inside the knee)
• Damaged or worn cartilage (often from arthritis)
• Torn ligaments such as the anterior cruciate ligament (ACL)
• Loose pieces of bone or cartilage floating in the joint

Risk factors

• Playing sports that involve twisting, jumping, or sudden stops

When to see a doctor

See a doctor urgently if:

• If you have signs of infection like increasing redness, warmth, swelling, or drainage from the cuts
• If you develop sudden calf pain, chest pain, or trouble breathing – call your local emergency number immediately
• If your pain gets much worse or you cannot move your knee at all

Book a routine appointment if:

• For scheduled follow-up visits with your surgeon
• If your swelling or pain does not improve after a few days

Diagnosis

Before your surgery, your doctor examined your knee and likely used scans like MRI or X-ray. After surgery, your surgeon knows exactly what was found and what was done.

Tests that may be done

• Physical examination of the knee
• MRI (magnetic resonance imaging) to see soft tissues
• X-ray to check bone health

What to expect at your appointment

Your healthcare team will give you a recovery plan that includes pain management, when to move your knee, and when to start physiotherapy. You will usually be able to go home a few hours after surgery.

Treatment

Recovery after knee arthroscopy involves managing pain and swelling, protecting your knee while it heals, and gradually returning to activities. Your doctor and physiotherapist will guide you through each step.

Self-care at home

• Rest your knee as much as possible for the first 2–3 days
• Apply ice packs for 20 minutes at a time, several times a day, to reduce swelling
• Keep your leg elevated (for example, on pillows) when sitting or lying down
• Follow your surgeon’s instructions on how much weight you can put on your leg
• Take pain relievers exactly as recommended by your doctor – do not exceed the dose

Living with this condition

For the first few days, plan to take it easy. You may need crutches to walk. Gradually increase your activity as your knee feels better, but avoid twisting or high-impact exercises until your doctor says it is safe.

Lifestyle tips

• Avoid driving until you can safely press the pedals and control the car – ask your doctor
• Return to work when your healthcare provider says it is okay, which could be a few days or weeks depending on your job
• Modify chores and tasks to avoid kneeling or squatting for several weeks

Diet and exercise

Eat a balanced diet with plenty of fruits, vegetables, and protein to help healing. Stay hydrated. Gentle exercises like ankle pumps and straight-leg raises, as advised by your physiotherapist, can help prevent stiffness and blood clots.

Mental health and emotional wellbeing

It is common to feel frustrated or impatient during recovery. You may feel down if you cannot do your usual activities. Talk to your family, friends, or healthcare team about how you feel. Many people find it helpful to set small daily goals.

Prevention

Not all knee problems can be prevented, but you can reduce your risk of injury by keeping your leg muscles strong, warming up before sports, wearing proper footwear, and maintaining a healthy weight.

Complications

If left untreated

• Infection in the knee joint (septic arthritis) – requires urgent treatment
• Blood clot in the leg (deep vein thrombosis) – can be serious if it travels to the lungs
• Persistent stiffness or weakness in the knee
• Need for further surgery if problems are not addressed

Long-term outlook

Most people recover well from knee arthroscopy and are able to return to their usual activities, including sports and exercise. Following your recovery plan closely and attending physiotherapy are the best ways to ensure a good outcome. With patience and care, your knee should feel much better.

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