Fat pad atrophy of the heel

Anatomy: The heel fat pad as a natural shock absorber

There is a specialized fat pad under the heel bone (calcaneus). It consists of dense connective tissue septa that stabilize many small fat chambers (microcompartments) like a honeycomb network. This architecture distributes the pressure forces when stepping, stores and returns energy and protects bones, tendons and nerves from overload.

• Function: cushioning, pressure distribution, protection of the plantar structures
• Structure: Fat chambers surrounded by solid collagen septa
• Differentiation: The fat pad is different from the plantar fascia (tendon-like plate)

With increasing stress, aging or after injury, the padding can become thinner, less elastic or uneven - the cushioning performance decreases.

Typical symptoms

• Central heel pain like a “bruise”, especially on hard surfaces
• Pain when stepping/heel contact, walking or standing for long periods
• Symptoms often improve in soft shoes or with heel cushions
• Walking barefoot is uncomfortable, especially on tiles or asphalt
• In contrast to plantar fasciitis, there is usually less pronounced morning start-up pain

The pain can occur on one or both sides and puts a strain on everyday life, sports and work. Those affected often report that it feels as if “the padding” under the heel is missing.

Causes and risk factors

• Age-related tissue remodeling: loss of elasticity and volume
• Repetitive impact loads (e.g. running on hard surfaces, jumping sports)
• Direct bruises/injuries to the heel
• Previous cortisone injections into the plantar region (can weaken fatty tissue)
• Foot shape and statics (e.g. hollow foot with stronger point loads)
• Skin and connective tissue diseases, metabolic diseases
• Too little cushioning in the shoe, wear and tear on the sole

A heel spur is not the cause of atrophy. However, it can occur together with other causes of overload and worsen symptoms.

Diagnostics in practice

A thorough history and examination are crucial to distinguish fat pad atrophy from other causes of heel pain.

• Clinical examination: tenderness centrally under the heel; Pain on exertion when striking the heel; often negative stretch tests of the plantar fascia
• Inspection: skin texture, calluses, drift of the fat pad
• Function: gait pattern, shoe wear, leg axis, foot shape
• Sonography (ultrasound): Assessment of thickness and tissue quality of the fat pad, exclusion of fascial tears or bursitis
• X-ray: exclusion of bony causes (e.g. stress reaction), assessment of the calcaneus
• MRI if necessary: ​​Detailed soft tissue assessment if findings are unclear

It is important to differentiate from plantar fasciitis: With plantar fasciitis, the pain is usually located on the inside of the heel base of the plantar fascia and is particularly pronounced in the morning after getting up.

Conservative treatment: protection, damping, load management

The aim of conservative therapy is to consistently relieve the heel, improve cushioning and allow irritation to calm down. Most patients benefit from a combined approach.

Cortisone injections into the heel soft tissue are generally not recommended for fat pad atrophy as they can further weaken the fatty tissue.

Regenerative and interventional options (with reservation)

There is current but limited evidence for regenerative procedures for heel fat pad atrophy. They only come into consideration – if at all – after conservative measures have been exhausted and careful information has been provided.

• Autologous fat tissue transfer (lipofilling): Your own fat is prepared and placed in the heel region to improve cushioning. Initial studies report pain relief in selected cases. Risks include resorption, asymmetries, infections, temporary swelling. Not standard for all cases.
• Biomaterial/filler injections (e.g. hyaluronic acid, gel filler): Off-label, heterogeneous results; potentially temporary effect. The indication is strict, the benefit-risk assessment is individual.
• Shock wave therapy (ESWT): More established for plantar fasciitis; no confirmed standard indication for fat pad atrophy.

We will work with you to check whether such an approach might make sense or whether an optimized, conservative strategy would bring better benefits.

Surgical procedures – rarely required

Classic operations on the bone or the plantar fascia do not help with pure fat pad atrophy. Surgical options are limited to soft tissue reconstructive procedures such as the aforementioned fat tissue transfer, which are reserved for specialized centers and require careful indication assessment.

Course and prognosis

With consistent relief and well-adapted aids, symptoms often improve within weeks to a few months. Some of those affected require long-term cushioning measures, especially during long-term impact-stressing activities or pre-existing tissue changes.

• Goal: Pain reduction and functional improvement, safe everyday and sports stress
• Relapses are possible when high shock loads return without protection
• Regularly checking shoes and insoles increases the chance of problem stability

Prevention and self-help

• Use high-quality, well-cushioned shoes and replace them in a timely manner
• Avoid hard, cold floors barefoot; wear padded socks
• Slowly increase the amount of training and integrate jumping elements in a measured manner
• If heel pain occurs, adjust the load early on – don’t “go through it”
• Add calf and plantar fascia stretches to your routine
• Avoid repeated cortisone injections into the sole of the foot

When should you seek medical advice?

• Sudden severe heel pain after a misstep/trauma
• Increasing pain despite protection and cushioning over several weeks
• Redness, warmth, significant swelling or fever
• Numbness, tingling or radiating night pain
• Inability to bear weight or suspected stress fracture
• Diabetic foot or wound healing disorders

Differential diagnoses: What else is possible

• Plantar fasciitis / heel spurs: more medial heel pain, typical morning start pain
• Infracalcaneal bursitis: localized swelling, tenderness over a bursa
• Stress fracture of the calcaneus: stress-dependent pain, often pain at rest; Imaging groundbreaking
• Nerve irritation (Baxter nerve), tarsal tunnel syndrome: burning/neuropathic pain, possibly numbness
• Systemic causes (inflammatory-rheumatic, metabolic)
• In adolescents: calcaneal apophysitis (Sever's disease)

Our approach in Hamburg

In our orthopedic practice at Dorotheenstrasse 48, 22301 Hamburg, we focus on conservative treatment that is suitable for everyday use. After a careful diagnosis, we will create an individual action plan with you - from selecting suitable shoes and insoles to taping and training concepts through to adjusting the load. Regenerative options are only considered if there is a clear indication and after detailed information.

Frequently asked questions (FAQ)

Below we answer common questions about heel fat pad atrophy.