Achilles Tendon — Overview

Men between the ages of 30–50 are frequently affected. The tendon’s previous condition often plays a role and can be worsened by
age-related wear and tear and certain treatments such as cortisone therapy.

Achilles tendon conditions can be treated conservatively or with surgery. Specialists weigh factors like
age, sporting activity, and overall health to choose the most appropriate option.

Anatomy & Function of the Achilles Tendon

The Achilles tendon is the largest and strongest tendon in the human body. It connects the calf muscles to the heel bone
(calcaneus), transmitting calf muscle force to the heel and hindfoot.

• Main action: plantar flexion (pointing the foot downward).
• Role in movement: critical for push-off during walking and running.
• Load: athletic activity can subject it to forces that exceed body weight.

Causes of Achilles Tendon Pain

Pain can arise from several causes. Athletes (especially ambitious runners) commonly experience Achillodynia—a broad term for
painful Achilles tendon complaints.

• Overload-related pain (often 2–6 cm above heel insertion): irritation can progress to inflammation and structural tendon damage.
• Insertional pain at the calcaneus: may be caused by an inflamed bursa or a bony heel spur.
• Structural damage (tears): can cause severe pain, either acute or chronic (often sports-related).

Common Problems & Diseases of the Achilles Tendon

Achilles Tendon Irritation

Achilles tendon irritation typically results from mechanical stress and presents with persistent pain and restricted movement. Symptoms often start
gradually and worsen over time, which can delay treatment.

• Key drivers: overtraining, insufficient recovery, sudden training increases, malalignment.
• Contributors: poor footwear, muscular imbalances, muscle shortening.
• Risk factors: obesity, advanced age, diabetes, family predisposition.
• Common signs: pain on loading, pressure pain, possible warmth/swelling, reduced range of motion.

Achilles Tendonitis

The transition from irritation to tendonitis is not always clearly defined. This is typically a non-infectious (germ-free) inflammatory
change of the tendon and surrounding tissues.

• Associated issue: inflamed bursa causing pain and reduced mobility.
• Possible anatomical trigger: Haglund’s exostosis (bony outgrowth at the heel insertion), often aggravated by
  irritating footwear.
• Progression: poor circulation + overuse may cause fiber wear → swelling, pain, warmth; later structural damage in tendon center.
• Exam clue: creaking/rubbing sensation (paratenonitis crepitans).
• Other causes to consider: rheumatic disease, gout.

Achilles Tendon Rupture

Rupture most often occurs in active sports patients, statistically affecting men aged 30–50, frequently with pre-damaged tendons.
Age-related wear, poor fitness, and certain therapies may increase risk.

• Risk enhancers: cortisone injections/therapy, certain antibiotics.
• Typical presentation: “popping” sound followed by sudden severe pain.
• Functional loss: inability to stand on toes or push off; some plantar flexion may remain due to other flexors.
• Visible findings: swelling, bruising, and sometimes a palpable tendon gap/defect.

Diagnostics

Diagnosis relies on medical history and physical examination; many conditions (including rupture) can be identified with high accuracy. Imaging is
often essential to confirm findings and characterize severity.

• Ultrasound: fast, patient-friendly; useful for tears and degenerative changes.
• X-ray: used when Haglund’s exostosis, bony avulsion, heel spur, or fractures are suspected.
• CT / MRI: helpful for specific questions, soft tissue assessment, and chronic cases.

Therapy of the Achilles Tendon

Treatment choice depends on the specific condition and personal factors. A key decision is whether surgery is needed or conservative care is sufficient.

Conservative Treatment

Most problems start with conservative management (especially irritation and inflammatory changes).

• Acute phase: cooling and load reduction; avoid complete immobilization to prevent tissue breakdown.
• Pain control: short-term pain-relieving medication may be used.
• Injections: cortisone + local anesthetic may be injected into surrounding tissue (not directly into the tendon) to reduce inflammation/pain.
• Load management: adjust training; avoid symptom-provoking activities.
• Rehab tools: physiotherapy (careful strengthening), shockwave therapy for selected indications.

Achilles tendon ruptures can also be treated conservatively, especially for older or higher-risk patients and those with lower athletic demands.
This can include cooling, rest, elevation, pain control, and cast immobilization for up to 12 weeks. The foot is initially positioned
in plantar flexion and later adjusted toward neutral. Complete unloading of the foot is often required for about 4 weeks.

Achilles Tendon Surgery

Surgery is usually considered when conservative therapy is unsuccessful or when the condition and patient profile indicate it.

• Haglund’s exostosis: if persistent, the bony prominence can be removed; the tendon is split longitudinally, bone is smoothed,
  then tendon and skin are sutured.
• Rupture repair: commonly recommended for young, healthy, athletically active patients; often treated promptly.
• Open repair: larger incision; tendon exposed, damaged/scar tissue removed; tendon ends re-approximated using strong sutures.
• Percutaneous repair: several small incisions; tissue-sparing and often faster recovery; not suitable for all rupture patterns.
• Post-op immobilization: typically a cast/boot immobilization for up to 6 weeks.

Rehab & Prognosis

Early treatment of Achilles tendon irritation is important to prevent chronic changes and structural weakening that can increase the risk of rupture.

After surgical treatment of a rupture, early rehabilitation may be delayed to protect healing. Immobilization helps the tendon ends heal without being
overstretched. Afterwards, structured physiotherapy supports mobility and strengthening. Normal activities are often possible again after about
4 months.

With early (often surgical) treatment, prognosis for Achilles tendon rupture is generally excellent. However, complications can occur, including wound
healing issues, circulatory problems, re-rupture, or excessive scarring that may reduce range of motion.

Which Doctors and Clinics Are Specialized in Achilles Tendon?

Orthopedic and trauma surgery specialists are typically involved. For operative care, foot and ankle surgeons
are commonly the specialists of choice.