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Achilles Tendon Rupture

Overview

The Achilles tendon is a strong cord that links the muscles in your calf to your heel bone. It's like a strong rope connecting your calf muscles to your heel. This tendon helps you push off the ground when you walk or run. Sometimes, this cord can be stretched too far, causing it to tear, either partially or completely.

A torn Achilles tendon (sometimes called an Achilles rupture) is an injury to the back of your lower leg. It's a common problem for people who are physically active, but anyone can get it. For example, it can happen during sports or even just while walking or running.

When the Achilles tendon tears, you might hear a snapping sound, followed by immediate, sharp pain in the back of your ankle and lower leg. This pain can make it hard to walk. The injury can range from a small tear to a complete break.

Fixing a torn Achilles often involves surgery. However, many people recover just as well with non-surgical methods. These methods often focus on rest, special exercises, and physical therapy.

Symptoms

A torn Achilles tendon can sometimes happen without any noticeable pain or other symptoms. However, most people experience a few key signs.

One common symptom is a sharp, sudden feeling like something hit the back of your calf. This might be accompanied by intense pain and swelling near your heel.

Another important sign is trouble moving your foot. You might not be able to point your foot downward (like when you're pushing off the ground while walking) or stand on your toes on the affected leg.

You might also hear a loud popping or snapping sound right when the injury occurs.

If you hear a pop in your heel, especially if you can't walk normally afterward, see a doctor right away. Prompt medical attention is crucial for proper diagnosis and treatment.

Causes

Your Achilles tendon is a strong cord that connects your calf muscles to your heel bone. It's essential for everyday movements like walking, running, and jumping because it helps you point your feet downward, rise up on your toes, and push off the ground. You use this tendon practically every time you move your foot.

Most Achilles tendon tears happen near where the tendon attaches to your heel bone, within about 6 centimeters (2.5 inches) of that connection. This part of the tendon can be weaker because the blood supply there is often limited. This reduced blood flow makes it harder for the tendon to heal properly after an injury.

A tear in the Achilles tendon is frequently caused by something suddenly putting extra stress on it. Here are some examples:

  • Increased exercise intensity, especially in sports that involve jumping: If you suddenly start doing more intense jumping or running, you can overstress the tendon.
  • Falling from a height: A fall can put a lot of force on the tendon.
  • Stepping into a hole or uneven surface: An unexpected change in the ground can cause the tendon to tear.
Risk factors

Several things can make you more likely to tear your Achilles tendon. Understanding these factors can help you take steps to protect yourself.

Age: Most Achilles tendon tears happen between the ages of 30 and 40. This is likely because tendons, like other parts of the body, can naturally weaken or become less flexible with age.

Gender: Men are up to five times more likely to tear their Achilles tendon than women. The reasons for this difference aren't fully understood, but it could be related to differences in activity levels, muscle strength, or even body composition.

Physical Activity: Activities that involve sudden stops and starts, jumping, and running put a lot of stress on the Achilles tendon. Sports like soccer, basketball, and tennis are common causes of these types of injuries. Even regular running can increase your risk if you don't properly warm up or gradually increase your training intensity.

Steroid Injections: Sometimes, doctors inject steroids into the ankle to reduce pain and swelling. While this can help in the short term, steroids can weaken the tendons around the injection site. This can, unfortunately, increase the risk of a tendon rupture.

Certain Medications: Some antibiotics, specifically a class called fluoroquinolones, can increase the risk of Achilles tendon tears. These antibiotics are used to treat bacterial infections. If you're taking these medications, talk to your doctor about the potential risks and discuss alternative options if possible.

Weight: Being overweight or obese puts more stress and strain on the Achilles tendon. Maintaining a healthy weight can lessen this extra pressure.

It's important to note that these factors increase your risk, but don't guarantee a tear. Taking steps to prevent injuries, such as proper warm-up routines, gradually increasing exercise intensity, and maintaining a healthy weight, can significantly reduce your risk. If you have concerns about your risk, talk to your doctor.

Prevention

The Achilles tendon connects muscles in your lower leg to your heel. Stretching your calf muscles can help prevent a tear (rupture) in this tendon. Here's a simple calf stretch:

  1. Find your support: Stand a few feet away from a wall or sturdy object. Place your hands flat against the wall or hold onto the object.
  2. Position your legs: Keep one leg back with your knee straight and your heel flat on the floor.
  3. Bend and move: Slowly bend your front knee and elbows and push your hips forward until you feel a stretch in the back of your calf. Don't push until you feel pain.
  4. Hold the stretch: Keep this position for 30 to 60 seconds.
  5. Switch sides: Repeat with the other leg.

To protect your Achilles tendon:

  • Stretch and Strengthen: Regularly stretch your calf muscles. You should feel a pull, but not pain. Don't bounce while stretching. Strengthening your calf muscles also helps them handle more force and reduces the risk of injury.
  • Vary Your Activities: Mix up your exercise routine. Alternate high-impact activities like running with lower-impact activities like walking, biking, or swimming. Avoid activities that put a lot of stress on your Achilles, like running uphill or jumping.
  • Choose Wisely: Avoid running on hard or slick surfaces. Dress warmly when exercising in cold weather. Wear supportive athletic shoes with good cushioning in the heel.
  • Gradual Increase: Don't suddenly increase the amount, length, or frequency of your workouts. Increase your training by no more than 10% each week.

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Diagnosis

During a physical exam, your doctor will check your lower leg for any pain or swelling. They'll feel your lower leg, looking for any signs of a problem. If the Achilles tendon has completely torn, your doctor might feel a gap or space where the tendon should be.

To further evaluate the tendon, your doctor might ask you to either kneel on a chair or lie on your stomach with your legs hanging off the examination table. They may then gently squeeze your calf muscle. If your foot doesn't move or flex up in response to squeezing your calf, this is a strong sign that your Achilles tendon might be torn.

If your doctor isn't sure if the tendon is just partially torn or completely torn, they might recommend an ultrasound or MRI scan. These tests use sound waves or powerful magnets to create detailed pictures of the tissues inside your body. These tests are painless and help give your doctor a clearer picture of the extent of the damage.

Treatment

Treating a torn Achilles tendon depends on several factors, including your age, how active you are, and how severe the tear is. Generally, younger, more active people, especially athletes, often choose surgery to fix a completely torn Achilles tendon. Older people are more likely to try a non-surgical approach.

However, recent research shows that both surgery and no surgery can be successful.

Non-Surgical Treatment:

This involves several steps:

  • Rest: Using crutches to avoid putting weight on the injured leg.
  • Ice: Applying ice packs to the injured area.
  • Pain Relief: Taking over-the-counter pain medication.
  • Immobilization: Keeping the ankle still for a few weeks, typically with a special boot or cast that keeps the foot pointing downwards.

This method avoids the risks of surgery, such as infection. However, there's a slightly higher chance of the tendon tearing again with non-surgical treatment, and recovery might take longer. Recent studies suggest that starting physical therapy sooner, including weight-bearing exercises, can improve outcomes for people treated without surgery.

Surgical Treatment:

Surgery involves making a cut in the back of your lower leg and sewing the torn tendon back together. Sometimes, other tendons are used to strengthen the repair. The surgeon will choose the best way to repair the tendon depending on how badly it's torn.

Risks of surgery include infection and nerve damage. Techniques that use smaller cuts (minimally invasive surgery) can help reduce the risk of infection.

Rehabilitation After Either Treatment:

After either surgery or non-surgery, physical therapy is crucial. Exercises strengthen the leg muscles and the Achilles tendon. Most people can return to their normal activities within four to six months. It's important to continue strengthening and stability exercises afterward, as some problems might persist for up to a year.

Physical therapy also includes functional rehabilitation. This type of therapy helps you move and use your body in a coordinated way, which is important for returning to your best level of performance, whether it's as an athlete or in everyday life.

Some studies suggest that if you have access to good functional rehabilitation, non-surgical treatment can be just as effective as surgery. More research is needed to confirm this.

Importantly, rehabilitation approaches are rapidly changing. The trend is to start rehabilitation sooner and progress more quickly, both for surgical and non-surgical patients. Further research is ongoing in this area.

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Disclaimer: August is a health information platform and its responses don't constitute medical advise. Always consult with a licenced medical professional near you before making any changes.

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