Haglund exostosis

What is Haglund exostosis?

Haglund exostosis is a prominent bone edge on the rear, upper heel bone (calcaneus). The changed shape can lead to mechanical friction between the bones, Achilles tendon and bursa. The result is pain, swelling and tenderness at the back of the heel, often exacerbated by firm heel caps.

• Typical location: posterior superior calcaneus, near the insertion of the Achilles tendon
• Often accompanied by: retrocalcaneal bursitis (bursitis)
• Synonyms: Haglund deformity, "pump bump" (colloquial)

Anatomy and mechanics

The Achilles tendon attaches to the back of the heel bone. Between the tendon and bone there are bursa that serve as a sliding bearing. A protruding bone edge (exostosis) increases the mechanical pressure on the tendon and bursa, especially during dorsal flexion (pulling the foot) and in hard, narrow heel environments.

• Achilles tendon: transfers strength from the calf muscles to the foot
• Retrocalcaneal bursa: reduces friction between tendon and bone
• Shoe heel counter: can increase pressure/thrust on the area

Typical symptoms

• Pressure pain on the upper back of the heel bone, often on both sides
• Starting pain in the morning or after rest, often improving after short exercise
• Increased pain in shoes with hard/tight heel caps
• Locally palpable induration/prominence, occasionally redness/swelling
• Pain during exercise with jumping/running, especially uphill

The symptoms can occur in waves. Phases with freedom from irritation are possible, especially if pressure-relieving measures and adapted training are taken into account.

Causes and risk factors

Haglund exostosis is multifactorial. In addition to the individual bone shape, soft tissue tension, footwear and stress habits play a role.

• Anatomy: steep calcaneal angle, prominent posterosuperior edge
• Calf muscle shortening (gastrocnemius/soleus) → increased tension
• Footwear: hard/high heel caps, tight sports shoes
• Running technique/stress jumps, quick training build-up
• Achilles tendon insertion tendinopathy as a concomitant factor
• Rare: post-traumatic deformity

Differential diagnoses

Not all posterior heel pain is due to Haglund exostosis. A precise differentiation of other causes is important so that the therapy is targeted.

• Retrocalcaneal bursitis without bony prominence
• Insertional Achilles tendinopathy/partial tears
• Superficial subcutaneous bursitis (due to chafing of the heel cup)
• Plantar fasciitis (pain more under the heel)
• Peroneal tendinopathy or subluxation
• Tarsal tunnel syndrome or nerve constriction
• Baxter neuropathy (lower branch of the tibial nerve)

Diagnostics in practice

The diagnosis is based on anamnesis, clinical examination and - depending on the course - imaging diagnostics. We specifically check pressure points, tendon quality, mobility and shoe marks.

• Clinic: Inspection of the heel contour, tenderness, calf stretch test
• Shoe analysis: abrasion, heel cap hardness, insoles
• Lateral x-ray: assessment of bony prominence and axes
• Ultrasound: tendon structure, bursitis, gliding behavior
• MRI (if necessary): differentiation of tendon insertion, edema, accompanying pathologies

The decisive factor is whether the symptoms are primarily caused by mechanical pressure (shoe/exostosis) or by a tendon insertion tendinopathy - this determines the therapy planning.

Conservative therapy (priority)

In most cases, significant relief can be achieved through a combination of pressure relief, load control and targeted therapy. A structured approach over several weeks makes sense.

• Shoe adjustment: soft/padded heel cap, if necessary open heel (clogs) in phases
• Heel elevation (5-10 mm) to reduce tension on the Achilles tendon
• Pressure protection: heel patch, foam ring, silicone heel cup
• Cooling for acute irritation; short-term anti-inflammatory measures after consultation
• Physiotherapy: Calf/Achilles tendon stretching (gentle, pain-adapted), eccentric training
• Manual techniques: soft tissue mobilization, myofascial treatment of the calves
• Stress management: reducing high-impact activities, switching to cycling/swimming, gradually rebuilding
• Running and shoe advice: Test the heel cap, if necessary temporarily slight heel bounce
• Insoles/Orthoses: depending on the shape of the foot for axis guidance and pressure redistribution

A conservative treatment period of 8-12 weeks with regular evaluation is common. In dominant bursitis, the focus is on pressure relief and short-term modulation of inflammation; If tendons are involved, a progressive, eccentric strength program is key.

Injections and regenerative procedures: consider carefully

Achilles tendon injections require restraint. Intratendinous cortisone injections are not recommended due to increased risk of rupture. In selected cases, a peribursal injection under ultrasound guidance can be considered - strictly outside the tendon.

• Shock wave therapy (ESWT): can reduce pain in insertional tendinopathy and bursitis; Effectiveness individual, multiple sessions required
• PRP/ACP (autologous blood preparations): Use off-label possible; Evidence heterogeneous, benefits to be examined individually
• Local anesthetic/cortisone peribursal: only selectively and sparingly; Risk information (tendon/skin complications)
• No cortisone into the Achilles tendon itself

The suitability of such procedures is determined by the findings, duration of the complaint and previous treatment. We discuss benefits, limitations and alternatives transparently.

Surgical treatment: indications and procedures

Surgery is considered if conservative measures do not bring sufficient improvement over several months and there is confirmed correlative pathology (clearly prominent exostosis, therapy-resistant bursitis or insertional tendinopathy).

• Endoscopic or open calcaneoplasty: removal of the posterosuperior exostosis, relief of the bursa
• Bursectomy: Removal of inflamed bursa
• Tendon insertion debridement and refixation (in the case of degenerative parts of the insertion), if necessary suture anchors
• Gastrocnemius release (calf lengthening) in individual cases with pronounced shortening

The aim is to reduce mechanical conflict. The procedure depends on the extent of bone prominence and tendon involvement. We explain risks such as wound healing disorders, nerve irritation (sural nerve), persistent complaints or rare tendon complications.

Follow-up treatment and rehabilitation

The follow-up treatment depends on the type of operation. After pure exostosis removal, rehabilitation is usually quicker than after tendon reconstruction.

• Temporary heel wedges/walkers to reduce tension
• Partial weight-bearing according to doctor's instructions, gradually increasing
• Early mobilization, scar care, decongestant measures
• Physiotherapy with progressive strengthening and stretching
• Return to run usually after 8–12 weeks, sport-specific stress later; individually different

A realistic horizon of expectations and consistent exercise programs support the success of the treatment. A guarantee of complete freedom from symptoms cannot seriously be given.

Self-help and prevention

• Check footwear: soft, sufficiently high heel cap; Heel pads if necessary
• Dose the load: gradually increase, avoid shock peaks
• Regular calf mobilization and eccentric strength training
• Cooling after exercise, especially if there is accompanying bursitis
• Weight and training management in consultation with therapy

Early adjustments in everyday life and sport help to avoid irritation. If pain persists or increases, an orthopedic evaluation should be carried out.

When should I seek medical advice?

• Severe pain or pain that increases at night, significant swelling/redness
• Sudden “popping” in the heel with loss of function (suspected Achilles tendon rupture)
• Complaints persist for several weeks despite adjusting footwear and strain
• Uncertainty as to whether Haglund exostosis or another cause is present

Your orthopedics in Hamburg

Our location: Dorotheenstraße 48, 22301 Hamburg. We combine careful diagnostics with evidence-based, primarily conservative therapy. If surgical steps seem sensible, we discuss procedures, alternatives and risks calmly and at eye level.

Frequently asked questions (FAQ)