Symptoms of Cartilage Damage in Ankle

What Is Ankle Cartilage?

Ankle cartilage is a special tissue that covers the ends of the bones in the ankle joint. It’s mainly made of hyaline cartilage, which is smooth and slippery. It helps the bones move easily with little friction.

Ankle Cartilage Anatomy

Understanding ankle cartilage is important for knowing how the ankle joint works. The ankle is actually made up of two joints: the true ankle joint and the subtalar joint.

True Ankle Joint:

• Tibia: The larger bone in the lower leg that forms the inside part of the ankle.
• Fibula: The smaller bone in the lower leg that forms the outside part of the ankle.
• Talus: A dome-shaped bone between the tibia and fibula that connects them to the foot.
• Articular Cartilage: The ends of these bones are covered in smooth, hyaline cartilage that helps them move without friction. The cartilage is especially thick on the talus, covering about 60% of its surface, making it one of the most cartilage-covered bones in the body.

Subtalar Joint:

Talus and Calcaneus (heel bone) make up this joint, which allows the foot to move side-to-side (inversion and eversion).

Ankle Cartilage Damage Symptoms

After an ankle injury, symptoms may go away with treatment. However, if the cartilage is damaged, symptoms can come back when you are active. Common symptoms include:

• Stiffness
• Inflammation
• Dull or aching pain deep in the joint
• Weakness
• Limited movement
• A feeling of the joint locking or catching.

How to Fix Cartilage Damage in the Ankle?

If doctors suspect a cartilage defect, they take a standing x-ray to check the ankle bones for arthritis or deep damage. For less obvious cases, an MRI helps to get a clearer view and check for osteochondral defects. The treatment options include:

Ankle Cartilage Repair Without Surgery

Medical professionals start with nonsurgical treatment to see if the condition improves. They often use advanced imaging as needed. Based on the patient’s pain, they can recommend using a walking boot to immobilize the ankle for a few weeks, though it only has a 30-40% success rate.

Injections can also help. Steroid injections are an option for older patients, while younger patients may benefit from platelet-rich plasma (PRP) injections. PRP uses the patient’s own blood, concentrated to promote healing.

Surgical Cartilage Repair

If nonsurgical treatment doesn’t work, doctors perform surgery to relieve pain, usually based on MRI results. MRIs give a better view of soft tissue and cartilage than X-rays. If a cartilage injury is linked to your pain, surgery is a more effective option. It has success rates of around 75-80%, compared to 30-50% for nonsurgical methods.

Most ankle cartilage surgeries are minimally invasive through arthroscopy, using small incisions to insert tools and repair the injury. Sometimes, cartilage or bone grafts are added to help healing.

Ankle Cartilage Injury Recovery Time

After treatment, patients need to avoid putting weight on the ankle for about 4-6 weeks to allow the cartilage to heal. Your doctor will give you a specific timeline based on your injury. Once you have healed enough, you will gradually start weight-bearing activities. Physical therapy will follow to restore movement and strength in the ankle.