Achilles Tendonitis

Achilles Tendonitis refers to constant irritation and inflammation of the Achilles tendon, which is the largest tendon in the body and can be found running down the back of the lower leg. Originating from the calf muscles and inserting onto the heel, the Achilles tendon can withstand great stresses while climbing, walking, running or standing up on your toes. As it experiences significant forces, the tendon stands prone to overuse and degeneration characteristic of achilles tendonitis. Patients experience the pain at the insertion of the achilles tendon onto the heel or along the substance of the tendon.


Depending on the site of the tendon inflamed, Achilles Tendonitis can be classified into Insertional and Non Insertional tendonitis.


This condition usually results from repetitive stress on the Achilles tendon. Some common causes observed are :


The hallmark features of the tendon histopathology that are observed are cellular activation and increase in cell numbers, increase in ground substance, collagen disarray and neovascularisation. It is not considered to be a primarily inflammatory condition. Histological evaluation of biopsies shows intratendinous microdialysis, Neurogenic inflammation, though has been distinctly associated with this condition Peptides released from peptidergic group IV fibres in response to peripheral noxious stimuli are responsible for the initiation of many pathophysiological processes. Moreover, neuropeptides such as substance P and calcitonin gene- related peptide point towards an inflammatory process in the tendon.


The usual symptoms of Achilles tendonitis include:

A sudden pop at the back of the ankle might indicate partial or complete rupture of the Achilles tendon.

Clinical Examination


X- rays can provide information on any calcification at the insertion pointing towards Insertional Achilles Tendonitis. Sometimes in cases of chronic insertional tendonitis calcifications might be noticed along the middle portion of the tendon. Additionally x rays can show additional heel spurs. MRI, though is not useful directly in the diagnosis, it is often used by surgeons for planning surgery for the diseased tendon.


Initial Conservative Approach

Rest : The first step is to reduce the strain on the tendon by eliminating or substituting high impact activities with low impact ones. Instead of running patients are advised to use elliptical cross trainers and static cycles. In very acute and painful cases no exertion is advised till the pain comes down.

Ice : Icing the Achilles tendon a few times a day for 10-15 minute periods can help get the pain and inflammation down. Non-steroidal anti-inflammatory medications such as ibuprofen and naproxen help in managing the pain and swelling but are usually not advised for more than a week at a stretch.
Exercise and Physical Therapy : The following exercise can help to strengthen the calf muscles and reduce stress on the Achilles tendon.

Calf stretch : Calf stretch keeping the back leg straight with the heel placed on the ground one should lean forward against a wall. The front leg has a bend in the knee. To stretch the gastrocnemius complex (calf muscles) and the Achilles tendon, hips have to be pushed towards the wall in a controlled manner. Position is to be held for 10 seconds before relaxing. Exercise should be repeated around 20 times for each foot and this should give the adequate stretch in the calf muscles.

Eccentric Strengthening Protocol : Eccentric strengthening is defined as contraction of a muscle while it is getting longer. Eccentric strengthening is more helpful for non insertional tendonitis. Once initiated for a a couple of weeks under the supervision of a physical therapist, these exercises can be performed at home following that.

Heel drop : Bilateral heel drop Stand at the edge of a stair, or a raised platform that is stable, with just the front half of your foot on the stair, heels are lifted o the ground and brought back down to the lowest point possible in a controlled manner. This is to be repeated at least 20 times. Care is to be taken during the bilateral heel drop to be balanced correctly before starting.

Single leg heel drop : This exercise is similar to the bilateral heel drop, except that all the weight is balanced on one leg. Amongst other physical therapy modalities, Extracorporeal shockwave therapy(ESWT) has found some success. It produces high- energy shock wave impulses stimulating healing in the damaged tendon. Supportive Shoes and Orthotics that can o load the tendon or cushion the heel can be helpful.

Interventional Non Invasive Approach

Blind or Ultrasound guided Cortisone injections have been used to ease the pain utilising the potent anti-inflammatory e act of cortisone. Inadvertent repeated injections of cortisone at the insertion site can cause weakening and rupture of the tendon.

Regenerative Approach

AT ALLEVIATE, we use a comprehensive approach of Platelet Rich Plasma with prolotherapy to treat Achilles Tendonitis not responding to conservative means. Procedures are carried out under strict image guidance using a high definition Musculoskeletal Ultrasound. While Prp is focussed on the insertion of the Achilles and the adjoining area of the tendon, the rest of the substance of the tendon and other adjacent calcaneal and malleolar attachments are subjected to comprehensive prolotherapy. We have seen excellent results with this treatment modality and believe should be a first line treatment o ered to patients not responding top conservative means.


Chronic cases not responding to non-surgical means for more than 8-12 months are advised surgery. Surgeries for chronic Achilles tendonitis Gastrocnemius recession with or without debridement( usually for cases with less than 50″% of the tendon involved) Debridement with repair also augmenting it with a tendon transfer if needed is carried out usually when more than 50% of the tendon is involved. Depends upon the amount of damage to the tendon. Rehabilitation is usually started with an Air cast walking boot following the procedure.

FAQs - Achilles Tendonitis

What does Achilles tendonitis refers to?

Achilles tendonitis is a painful inflammation of the Achilles tendon, the thickest and strongest tendon in the body.

Where does Achilles tendonitis originates?

Achilles tendon is a cordlike tendon that originates from the calf muscles that runs along the back of the lower leg to the heel bone.

How stressful is Achilles tendonitis injury?

Achilles tendonitis is an overuse injury that causes pain and stiffness in the back of the ankle and lower leg. A patient can experience pain at the insertion of the Achilles tendon onto the heel or along with the substance of the tendon.

What are the types of Achilles tendonitis?

Based on which part of the tendon is inflamed, Achilles tendonitis has two types:

  • Insertional tendonitis
  • Non-Insertional tendonitis
What is Insertional Achilles tendonitis?

Insertional Achilles tendonitis is Achilles tendonitis where the injury is caused by a strain or stress in the tendon where it inserts into the back of the heel bone.

What are the causes of Insertional tendonitis?

Insertional Achilles tendonitis might cause is due to repeated movement or overuse stress on the Achilles tendon. The other causes might include as follows:

  • Injury
  • Inflammatory diseases
  • Repetitive stress
  • Mechanical stress
  • Bony growths
  • Articular disorders
  • Congenital anomaly
  • Tightness in the calf muscles
  • Activities of daily living
  • Normal aging
  • Rheumatoid arthritis
  • Bone spur due to extra bone growth
What are the signs and symptoms of Achilles tendonitis?

The signs and symptoms of Achilles tendonitis include:

  • Pain - This is the most common symptom of Achilles tendonitis. The pain may be experienced as a dull, achy pain or sharp, shooting pain.
  • Swelling - The area may swell because of the inflammation.
  • Tenderness - You may feel tenderness when you press on the area.
  • Instability - You may feel instability if Achilles tendon starts to rupture.
  • Weakness - You may experience weakness if there is an injury or if you overuse the Achilles tendon.
How is the clinical examination of the Achilles tendon conducted?

The clinical examination of the Achilles tendon is conducted by a doctor to determine the level of injury, pain and weakness of the Achilles tendon. Your doctor will also check the maximum tenderness, and instability.

What kind of tests/investigations are carried out for the Achilles tendon?

Ultrasonography is the primary imaging test for the Achilles tendon. It helps to reveal any structural abnormalities like tears, tendinopathy, swelling, calcifications and bursitis. X-rays help in determining Insertional Achilles Tendonitis. MRI or CT scans are done in case of suspected tendon rupture.

What is the treatment or initial conservative approach for the Achilles tendon?

The treatment for an Achilles tendon typically includes:

  • Rest
  • Ice
  • Non-steroidal anti-inflammatory medications
  • Exercise and Physical Therapy
Does rest helps in reducing pain and strain?

Rest is the initial step to reduce the strain on the Achilles tendon by eliminating or substituting high-impact activities with low-impact ones. Patients are advised to use elliptical cross trainers and static cycles instead of running. In some the cases like acute and painful cases, the high exertion should be limited.

How long should I use icing for the Achilles tendon?

After an Achilles tendon rupture, icing will help decrease swelling and inflammation. Apply an ice pack to the injured area for about 15 to 20 minutes a day for few times. Do not apply ice if you have an open wound.

Can I take Non-steroidal anti-inflammatory medications for the Achilles tendon?

Yes. Non-steroidal anti-inflammatory medications (NSAIDs) such as ibuprofen and naproxen help in managing mild to moderate pain and swelling. Usually, NSAIDs are not prescribed for more than a week at a stretch.

How can exercises and physical therapies help?

The exercise and physical therapies can help in strengthening the muscles and reduce stress on the Achilles tendon.

What are the best exercises and physical therapies for the Achilles tendon?

Finding the right exercises and physical therapy may be used to help to treat Achilles tendonitis. Some of the types included are:

  • Calf stretch
  • Eccentric Strengthening Protocol
  • Heel drop
Does surgery required for Achilles Tendonitis?

Surgery is the last resort if non-surgical methods do responsive for more than 8-12 months. Surgery is performed for chronic Achilles tendonitis. Depending on the damage of the tendon, the Gastrocnemius recession or Debridement method is conducted.

Is there any rehabilitation process a patient has to undergo following the procedure?

Rehabilitation usually begins with an Air cast walking boot post-procedure.

Whom should I contact for Achilles tendonitis?

The Alleviate Pain Clinic offers holistic treatment approach for those suffering from Achilles tendonitis. We have a clinic a short distance from your home. Call us today at 080 2361 4888 OR +91 9620244761.

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