Knee Arthroscopy

What is Knee Arthroscopy?

Knee arthroscopy is a minimally invasive (keyhole) procedure that allows the inside of the knee joint to be examined and treated through small incisions. A thin camera called an arthroscope is inserted into the joint, projecting a magnified view onto a screen, while fine instruments are introduced through additional small incisions to address problems within the knee.

Because the incisions are small and the procedure avoids opening the joint fully, arthroscopy is generally associated with less tissue disruption and a quicker recovery than open surgery, in appropriate cases.

What it is Used For

Knee arthroscopy can be used to diagnose and treat a range of conditions, including:

• Meniscal tears (repair or trimming, depending on the tear)
• Cartilage damage
• Loose fragments of cartilage or bone within the joint
• Certain ligament injuries, including as part of ACL reconstruction
• Inflamed or problematic joint lining
• Assessment of unexplained knee symptoms where imaging is inconclusive

It is important to note that arthroscopy is not an effective treatment for generalised knee arthritis, and its role has become more selective as evidence has clarified which problems genuinely benefit from it. The most appropriate treatment for your knee will be discussed at your consultation.

The Procedure

The procedure is performed under spinal or general anaesthesia. Small incisions are made around the knee, the joint is inspected with the arthroscope, and the identified problem is treated using fine instruments. The incisions are small and usually require only minimal closure. Many arthroscopic procedures are performed as day surgery, allowing patients to return home the same day in suitable cases.

Recovery

Recovery depends on what was done inside the knee. A simple procedure such as trimming a meniscal tear generally allows a relatively quick return to activity, whereas a meniscal repair requires a more protected and gradual rehabilitation to allow healing. General principles include managing swelling, restoring movement and strength, and progressing activity as guided by your team. Your specific recovery plan will reflect the procedure performed and your individual progress.

Risks and Complications

Knee arthroscopy is generally a safe procedure, but as with any surgery it carries some risk, including:

• Infection
• Blood clots (deep vein thrombosis or pulmonary embolism)
• Swelling and stiffness
• Ongoing or recurrent symptoms
• Injury to structures within or around the knee

All relevant risks will be discussed in detail at your consultation.

Frequently Asked Questions

Will arthroscopy fix my knee arthritis?

Arthroscopy is not an effective treatment for generalised knee arthritis and is not usually recommended for this purpose. It is most useful for specific problems such as meniscal tears, loose fragments, or cartilage injuries. Arthritis is managed through other means, which may include non-surgical treatment or joint replacement.

Is knee arthroscopy day surgery?

Many arthroscopic procedures are performed as day surgery, allowing suitable patients to return home the same day. Whether this applies to you depends on the procedure and your individual circumstances.

How quickly will I recover?

Recovery varies with what is done inside the knee. A meniscal trim generally allows a quicker return to activity than a meniscal repair, which needs a more protected recovery. Your surgeon will explain the expected timeline for your specific procedure.

Medical Disclaimer
The information on this page is intended as general patient education and does not constitute medical advice. Every patient is different, and treatment decisions should always be made in consultation with a qualified medical professional based on your individual circumstances, health history, and imaging. Outcomes from surgery vary between patients and cannot be guaranteed. If you have concerns about your knee health or are considering surgery, please contact Dr Slattery’s rooms to arrange a consultation.