Hindfoot diseases

Anatomy of the hindfoot – what does it involve?

The hindfoot primarily includes the heel bone (calcaneus) and ankle bone (talus) with the lower ankle joint (subtalar joint), which together control the change of direction of the foot. Surrounding tendons, ligaments, bursa and nerves ensure guidance, power transmission and freedom from pain.

• Bones & Joints: Calcaneus (heel), talus, subtalar joint, parts of the upper ankle joint
• Tendons: Achilles tendon (calf muscles), tibialis posterior (medial), peroneal tendons (fibularis tendons, lateral), flexor hallucis longus (FHL, behind the medial malleolus)
• Nerves: tibial nerve in the tarsal tunnel with branches (including calcaneal nerve; Baxter nerve)
• Bursa: retrocalcaneal bursa (between Achilles tendon and heel bone) and subcutaneous bursa
• Ligaments: lateral ligament structures, deltoid ligament (medial), retinacular holding structures of the tendons
• Soft tissue: Plantar fascia (near the heel), fat pad of the heel

Typical symptoms and warning signs

The symptoms vary depending on the structure. A precise description of the location, type and time of pain helps with classification.

• Heel pain during exercise or in the morning (start-up pain), pressure pain on the Achilles tendon or on the heel cap
• Swelling, overheating, rubbing noises or palpable tendon snapping on the inner or outer ankle
• Abnormal sensations (tingling, burning, numbness) on the sole of the foot or heel – possible nerve compression
• Feeling of instability, buckling, loss of strength (e.g. standing on toes becomes difficult)
• Visible bony bump on the heel (Haglund configuration) or significant deformity
• Acute pain with a “pop” along the course of the Achilles tendon and sudden loss of function – suspected rupture (clarify urgently)

Common hindfoot diseases

On the following subpages you will find in-depth profiles on the most important diagnoses relating to the hindfoot:

• Tarsal tunnel syndrome: Constriction of the tibial nerve (n. tibialis) behind the inner ankle, often with burning/tingling sole problems.
• Baxter neuropathy: irritation of a heel branch (inferior calcaneal nerve); often misinterpreted as a pure “heel spur” problem.
• Peroneal tendon subluxation/tendinopathy: Laterally emphasized pain, snapping/instability behind the lateral malleolus, esp. a. in sports.
• Tibialis posterior insufficiency: medial pain, decreasing arch stability (tendency to bend/flat feet), fatigue when walking.
• Achilles tendon rupture: Sudden event, often with a classic “crack of the whip”; Acute functional disorder, requiring rapid clarification.
• Haglund exostosis: Bony prominence on the back edge of the heel; mechanical irritation of the Achilles tendon/bursa.
• Retrocalcaneal bursitis: Inflammation of the bursa between the heel bone and Achilles tendon; Pressure pain on the back edge of the heel.

Delimitation: Forefoot and sole problems (e.g. plantar fasciitis) are explained separately; Details can be found under the linked overview pages for toes & forefoot and sole of the foot (plantar).

Causes and risk factors

Often several factors work together. A thorough anamnesis reveals stress profiles, previous illnesses and shoe habits.

• Overload and training jumps (sudden increase in volume/intensity), unsuitable footwear
• Malpositions: arched arches/flat feet, varus/valgus axes; Leg length difference
• Previous injuries (knee trauma, tendon irritation), scars/constrictions
• Systemic factors: diabetes, rheumatic diseases, metabolism (e.g. uric acid), smoking
• Age and degenerative changes in tendons/ligaments
• Spurs close to the bone and prominent heel shapes (e.g. Haglund configuration)
• Occupational and everyday influences: long periods of standing/walking on hard surfaces

Diagnostics: structured and targeted

A careful clinical examination is the basis. Imaging and functional diagnostics are used in addition if necessary.

Important: Acute suspicions of a tear, infection or pronounced neurological deficits should be clarified promptly.

Conservative therapy – make the most of it first

Most hindfoot complaints can be treated well with structured, individually tailored measures. The aim is to relieve pain, improve function and prevent recurrences.

• Stress control: Reduction of provocative activities, gradual increase in stress
• Short-term relief/immobilization: shoe modification, heel wedges, functional orthoses/walkers – depending on the diagnosis
• Physiotherapy: eccentric training (especially Achilles tendon), strengthening of foot/calf muscles, coordination, stretching of the calf muscles
• Manual therapy, myofascial techniques, neurodynamic exercises (for nerve constriction syndromes)
• Insole care: medial support for tibialis posterior problems, heel cup/soft bed for heel pain, lateral wedge for peroneal tendon problems - individually adjusted
• Taping/orthotics for short-term stabilization, also in sports
• Physical measures: cooling for acute irritation, warmth for chronic muscle tension
• Medicinal: anti-inflammatory painkillers for a short time and according to the indication; local anti-inflammatory measures
• Injections under ultrasound control, e.g. B. peritendinous or in bursae; Corticosteroids restrained and not intratendinous to the Achilles tendon
• Shock wave therapy (ESWT) for selected tendinopathies/insertion tendinopathies - depending on the findings
• Autologous conditioned plasma (ACP/PRP): may be considered for certain tendinopathies; Evidence is heterogeneous – benefits and limitations are discussed individually
• Weight management, ergonomic shoe advice (padded heel cap, sufficient heel height)

The duration and intensity of conservative therapy depend on the diagnosis and course. Regular follow-up checks help to adapt measures.

Operational options – when do they make sense?

Intervention can be considered if conservative measures do not lead to the desired level of function despite sufficient duration, in the case of progressive misalignment, relevant nerve compression with failures or in the case of acute injuries with loss of function. Decisions and procedures are considered individually.

• Achilles tendon: minimally invasive/open suture in case of tear; Debridement/track removal in chronic insertional tendinopathy (selected)
• Tendon reconstructions/transfers: e.g. B. FDL transfer for tibialis posterior insufficiency; Retinaculum repair and gutter plasty for peroneal tendon subluxation
• Bone/soft tissue corrections: removal of Haglund exostosis, bursectomy for treatment-refractory bursitis
• Nerve decompression: tarsal tunnel release with proven compression and correlating clinical features
• Corrective osteotomies/arthrodeses: for axial misalignments or advanced osteoarthritis (individual indication)

Follow-up treatment and rehabilitation are crucial for the result. We discuss healing times, stress levels and return to sport/exercise realistically and transparently.

Course, healing times and prevention

Healing processes are individual and dependent on age, tissue quality, comorbidities and treatment adherence. Patience and a structured program pay off.

• Tendinopathies: often 6-12 weeks until noticeable improvement, sometimes longer in chronic cases
• After Achilles tendon rupture: several months of rehabilitation; Return to sport gradually and depending on sport/level
• Nerve bottlenecks: improvement with relief, insoles and exercise program; resolve persistent failures more quickly
• Prevention: slow increase in training, appropriate footwear, regular calf and foot muscle care, insoles for relevant misalignment, compensation for peak loads

When should you come to us in Hamburg?

Seek orthopedic evaluation if symptoms persist or warning signs occur. In our practice in Hamburg-Winterhude (Dorotheenstrasse 48, 22301 Hamburg) we take the time for careful diagnostics and advice.

• Pain > 2-3 weeks despite rest/self-care
• Nocturnal pain, significant swelling, redness, warmth or fever
• Numbness/burning in the heel/sole of the foot, loss of strength, stumbling/turning an ankle
• Acute “pop”/torn sensation in the Achilles tendon, inability to stand on toes
• Visible misalignment of the hindfoot or increasing instability
• Recurring complaints during sport or at work