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Achilles Tendonitis – Symptoms, Diagnosis and Treatment

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Achilles Tendonitis – Symptoms, Diagnosis and Treatment

Achilles tendonitis is when the achilles tendon becomes inflamed or irritated. This inflammation is often the result of a lot of stress on your calf muscles and achilles tendon from either a sudden increase in intensity or frequency of exercise. Chronic overuse can contribute to micro-tears in the achilles tendon, leading to wear and tear over time that weakens the tendon and thickening of the tendon from scar tissue.

When treated promptly, achilles tendonitis is often short-lived. Left untreated, Achilles tendonitis can cause persistent pain or cause your tendon to rupture. The healing process causes scar tissue to form. Because scar tissue is not as elastic as the tendon, the scar tissue doesn’t allow the tendon to stretch normally, which can lead to a rupture of the tendon.

Fortunately, rest and over-the-counter medications to reduce your pain and inflammation may be all the treatment you need for Achilles tendonitis. In some cases, physical therapy may be needed. If you ignore symptoms, the result can be a rupture or tear of the tendon and surgery may be needed.

Before you read any further, it might help to brush up on Foot and Ankle Anatomy.

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Where is the Achilles Tendon and What Does it Do?

Achilles tendon

Tendons are strong, fibrous tissues that attach muscles to bones. When muscles contract, the muscle pulls on the tendon that moves the bone. The achilles tendon attaches the two calf muscles (the outer gastrocnemius and the underlying soleus) that share the achilles tendon to the heel bone (calcaneus). When contracted, the calf muscles pull on the achilles tendon causing the foot to point downward helping you to rise up onto the ball of your foot. As the calf muscles relax, they allow you to lower your heel to the ground. This powerful muscle group in your calf helps you sprint, jump, or climb and provides the push-off phase in walking and running.

What Causes Achilles Tendonitis?

The achilles tendon is one of the strongest in the body but is prone to injury because of the tremendous pressure that is put on it with every step we take.Achilles tendonitis is often an overuse injury—doing too much too soon. Problems with the Achilles tendon affect athletes most often; especially runners, basketball players, and sports that require jumping—like volleyball and tennis. Problems are also common in middle-aged adults. Tendonitis can also be caused by calf muscles that are too tight. Some injuries to the Achilles tendon are minor and some—ruptures—are rather severe.

Achilles tendonitis can be either acute which occurs over a period of a few days following and increase in training, or chronic which occurs over a longer time. In athletes, problems are often acute following a sudden increase in training—either distance, speed or hills. Risk factors for non-athletes include diabetes, age, obesity, steroids, certain antibiotics or a “weekend warrior” injury.

What do Achilles Tendon Problems Feel Like?

Acute:

Chronic Achilles tendonitis can follow acute tendonitis if untreated. Chronic tendonitis is more difficult to treat.

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Ligaments and bones of the ankle

You can have pain either where the Achilles tendon attaches to the calf muscle—tendonitis—or where it attaches to the heel bone (calcaneus)—bursitis. There is a fluid filled sac between the tendon and the bone, called a bursa that limits friction when the tendon glides up and down at the back of the heel bone. Bursitis usually starts as pain and irritation at the back of the heel. You may see redness or swelling there. Shoes can aggravate the condition making it hard to wear shoes.

Foot Xray on toes

Tendonitis occurs just above the heel. Tendonitis is caused by a violent strain to the calf muscles or the tendon during a strong contraction of the muscle as when running or sprinting. This strain can occur where the muscles join the Achilles tendon. You will have pain when pressing on the Achilles tendon and with walking, especially when pushing off your toes or putting weight on your toes as when going down stairs or stepping off a curb. (See xray image left.)

How are Achilles tendon problems identified?

Diagnosis is done by your doctor taking a history—“what were you doing when the pain started?”—and a physical exam to see where your calf and/or foot hurt. You will likely have xrays to rule out fracture and show bone spurs or other problems.

What Are My Treatment Options?

Your treatment will depend on the severity of our injury and how long it has been since your injury. You will likely be started on rest, ice and anti-inflammatory medicines such as aspirin or NSAIDs.

Physical Therapy for Achilles Tendonitis

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For some injuries, physical therapy is recommended to help remove or stretch scar tissue and to control pain and swelling. Patients with mild symptoms of bursitis or tendonitis often do well with two to four weeks of physical therapy. The physical therapist’s goal is to keep your pain and swelling under control, improve your range of motion and strength, and make sure you regain a normal walking pattern. Treatments such as ultrasound, moist heat, and massage are used to control pain and inflammation. As pain eases, treatment progresses to include stretching and strengthening exercise. Physical therapy can also include shock waves, ultrasound, and ice. The key to proper ice and heat therapy is knowing when to ice and heat an injury. Your physical therapist knows when and how to apply treatment to reduce swelling and pain while still allowing the healing inflammatory process. Your therapist will teach you a home-care program to go along with the office therapy to help speed healing.

One purpose of the treatment is to break up scar tissue that has formed and to stretch out the scar tissue allowing the tendon to stretch normally without pain or tearing. The order of treatment is important. You don’t want to stretch a “cold” tendon. Injured tendons shorten and need to be stretched. Also, be careful not to overdo stretching. Only gentle stretches for the calf muscles and Achilles tendon are used at first. As the tendon heals and pain eases, more aggressive stretches are done. Ask your therapist, “On a scale of 1-10, how much should I be stretching the tendon.” To prevent further scar tissue from forming, ice is applied after stretching, massage, or treatments. Don’t overdo therapy as this can slow down the healing process by adding further injury to the tendon.

Electrical stimulation can also be used in iontophoresis. This treatment involves the application of a topical anti-inflammatory to the area. The stimulation forces the medication into the tissues reducing inflammation.

What to Expect After Treatment

If you have mild symptoms, you should do well with 2-4 weeks of physical therapy; more severe injuries can take as long as 2-3 months. As your condition improves, you can begin doing exercises to strengthen your calf muscles. Strengthening starts gradually using exercises that work the calf muscles but protect the healing area. Eventually, you can do specialized strengthening exercises that work the calf muscle while it lengthens. For example, standing on your tiptoes and then carefully lowering your heels back to the ground.

When your healing is well under way, regular visits to the therapist’s office will end. Your therapist will continue to be a resource, but you will be in charge of doing your exercises as part of an ongoing home program. You should be able to get back to normal activities. If you are an athlete, you will be guided through rehab specific to your sport.

It is important to properly rehab the tendon after you recover from the injury or the injury will return.

Questions About Achilles Tendonitis

Q. How long do you have to wear walking boot?
A. How long you have to wear a walking boot will depend on how bad your injury is. Your first follow-up visit will likely be in 2 weeks after wearing the boot. If you still have problems, then you will likely wear the boot for a month and then follow-up with your doctor. If you still need the boot after two weeks, you may also be started on physical therapy which includes massage, and stretching exercises. The purpose of the boot is to rest the tendon. The downside is you can lose muscle tone in your foot and calf from lack of use. You should wear the boot except to sleep at night. Achilles tendonitis can be caused by calf muscle inflexibility. Even when you’re sitting, wearing the boot will position your foot to keep your calf muscles in a slight stretch. Your doctor or PT may also prescribe a night boot for you to sleep in. The night boot is softer than the walking boot and is designed to keep a constant, slight stretch on your calf muscles. Because of the poor blood supply in this area, Achilles tendonitis can heal very slowly.

Without following proper treatment, you can injure the Achilles even more possibly requiring surgery, a cast and crutches.

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