Ankle arthroscopy is a minimally invasive surgical procedure that Orthopaedic surgeons use to treat problems in the ankle joint. Ankle arthroscopy uses a thin fiber-optic camera (arthroscope) that can magnify and transmit images of the ankle to a video screen.
The goals of surgery are to reduce ankle pain and improve overall function.
Arthroscopy can be used to diagnose and treat different disorders of the ankle joint.
The list of problems that can be treated with this technology is constantly evolving and includes:
Ankle arthritis: Ankle fusion is a treatment option appropriate for many patients with end-stage ankle arthritis. Ankle arthroscopy offers a minimally invasive way to perform ankle fusion. Results can be equal to or better than open techniques.
Ankle fractures: Ankle arthroscopy may be used along with open techniques of fracture repair. This can help to ensure normal alignment of bone and cartilage. It may also be used during ankle fracture repair to look for cartilage injuries inside the ankle.
Ankle instability: Ligaments of the ankle can become stretched out, which can lead to a feeling that the ankle gives way. These ligaments can be tightened with surgery. Arthroscopic techniques may be an option for this problem.
Anterior ankle impingement (also referred to as athlete’s ankle or footballer’s ankle): Ankle impingement occurs when bone or soft tissue at the front of the ankle joint becomes inflamed. Symptoms include ankle pain and swelling. This can limit the ability to bend the ankle up. Walking uphill is often painful. Osteophytes (bone spurs) can be seen on X-ray. Arthroscopy can be used to shave away inflamed tissues and bone spurs.
Arthrofibrosis: Scar tissue can form within the ankle. This can lead to a painful and stiff joint. This is known as arthrofibrosis. Ankle arthroscopy can be used to identify the scar tissue and remove it.
Infection: Infection of the joint space cannot be treated with antibiotics alone. It often requires urgent surgery to wash out the joint. This can be done with arthroscopy.
Loose bodies: Cartilage, bone, and scar tissue can become free floating in the joint and form what is referred to as loose bodies. Loose bodies can be painful and can cause problems such as clicking and catching. Locking of the ankle joint may occur. Ankle arthroscopy can be used to find and remove the loose bodies.
Osteochondral defect (OCD): These are areas of damaged cartilage and bone in the ankle joint. OCDs are usually caused by injuries to the ankle such as fractures and sprains. Common symptoms include ankle pain and swelling. Patients may complain of catching or clicking in the ankle. The diagnosis is made with a combination of a physical exam and imaging studies. Imaging may include X-rays, MRI or CT scan. The treatment is based on the size, location, and stability of the OCD. The patient’s symptoms and activity demands are also considered. Surgery often consists of scraping away the damaged cartilage and drilling small holes in the bone to promote healing. Bone grafting and cartilage transplant procedures can also be performed.
Posterior ankle impingement: This occurs when the soft tissue at the back of the ankle becomes inflamed. Pointing the foot down can be painful. This overuse syndrome occurs commonly in dancers. It can be associated with an extra bone called an os trigonum. The problem tissue can be removed with arthroscopy.
Synovitis: The soft tissue lining of the ankle joint (synovial tissue) can become inflamed. This causes pain and swelling. It can be caused by injury and overuse. Inflammatory arthritis (rheumatoid arthritis) and osteoarthritis can also cause synovitis. Ankle arthroscopy can be used to surgically remove inflamed tissue that does not respond to nonsurgical treatment.
Unexplained ankle symptoms: Occasionally patients develop symptoms that cannot be explained by other diagnostic techniques. Arthroscopy provides the opportunity to look directly into the joint. The surgeon can then identify problems that may be treated with surgery.
This is done for any loose bodies in the joint or chondral damage or to identify the cause of pain in the joint and to treat simultaneously.
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