Knee arthroscopy is a minimally invasive surgical procedure used to diagnose and treat problems inside the knee joint. A surgeon inserts a small camera (arthroscope) and tiny surgical tools through small incisions to look at the structures inside the knee and fix any damage such as trimming a torn meniscus, smoothing cartilage, or removing loose fragments.

An analogy…

Think of your knee like a car engine with a dashboard camera. Instead of opening the whole engine, the mechanic uses a camera and small tools through keyholes to check inside and fix the problem. That’s what arthroscopy is; keyhole surgery for your knee.

What are other names that knee arthroscopy can be called?

• Knee Scope
• Arthroscopic Knee Surgery
• Keyhole Knee Surgery
• Minimally Invasive Knee Surgery

What causes knee arthroscopy to be needed?

Knee arthroscopy is usually done when other treatments haven’t worked, or when a clear diagnosis or repair is needed. Common reasons include:

• Meniscus tears
• Cartilage damage
• Loose bone or cartilage fragments
• Ligament injuries (e.g. partial ACL tears)
• Inflammation in the joint lining
• Persistent swelling, locking, or clicking

What are the signs and symptoms that might lead to knee arthroscopy?

• Ongoing knee pain, especially deep inside the joint
• Swelling or inflammation that doesn’t settle with rest
• Locking or catching when you bend or straighten your knee
• Instability or giving way
• Clicking or grinding sounds
• Limited range of motion or stiffness
• Poor response to physio, rest, or medication

What tests are used to diagnose issues that need knee arthroscopy?

• Physical assessment: checking joint movement, pain, and instability
• MRI scan: shows soft tissue injuries (e.g. meniscus, cartilage, ligaments)
• X-ray: to rule out arthritis or fractures
• If imaging is unclear or doesn’t match symptoms, arthroscopy may be used to look inside directly

How long does knee arthroscopy take to heal?

Recovery depends on what was done during the surgery:

• Simple clean-out or inspection: 2–4 weeks
• Meniscus trimming or cartilage smoothing: 4–6 weeks
• More complex procedures (e.g. ligament repair): 8–12+ weeks
  Most people return to normal daily activities within 1–3 weeks, and sports or heavy activity in 6–12 weeks, depending on rehab.

How does knee arthroscopy happen?

You’re usually given a local or general anaesthetic. The surgeon makes 2–3 small cuts around your knee, inserts a camera, and uses fine instruments to assess or treat the problem. The knee is then flushed with sterile fluid, the tools are removed, and the incisions are closed with small stitches or tape. You often go home the same day.

What treatment can help after knee arthroscopy?

• Rest and ice in the first 48–72 hours
• Elevation to reduce swelling
• Gentle movement (heel slides, quad activation) to prevent stiffness
• Manual therapy to reduce swelling and restore motion
• Progressive strengthening exercises (quads, glutes, hamstrings)
• Walking with crutches if needed early on
• Physiotherapy to guide rehab and prevent compensation patterns
• Return to activity gradually, based on your recovery and what was done during the procedure

What exercises or stretches can I do after knee arthroscopy?

• Quad sets (tightening thigh muscle)
• Heel slides to improve knee bending
• Straight leg raises
• Bridges for glute and hamstring activation
• Knee extensions and mini-squats
• Step-ups and balance work
• Cycling on a stationary bike

What products can help with knee arthroscopy?

• KT Pilates Band Pack
• KT Trigger Ball
• Wheat Bag