Muscles, tendons, ligaments, soft tissues in the ankle joint

Anatomy: Who stabilizes and moves the ankle?

The ankle joint is guided by a finely tuned interplay of muscles, tendons and ligaments. They stabilize in everyday life and sport, absorb stress and enable precise movements.

• Calf muscles and Achilles tendon: Gastrocnemius and soleus transmit force to the heel (plantar flexion). Often affected by running and jumping sports.
• Dorsiextensors: Tibialis anterior, extensor hallucis and digitorum longus lift the foot (dorsiflexion); Overloading causes pain in the back of the foot/front of the ankle.
• Inverters (inward turners): Tibialis posterior and flexor hallucis/digitorum longus support the longitudinal arch and the inner edge of the foot.
• Evertoren (outward turner): Peroneus longus and brevis guide and stabilize the outside edge; relevant for twisting injuries and outer ankle pain.
• Ligaments: Laterally external anterior/inferior talofibular ligament and calcaneofibular ligament; inside the strong delta band; Additionally, the syndesmosis between the tibia and fibula.
• Soft tissues: tendon sheaths, retinacula (retaining ligaments), the plantar fascia on the sole of the foot and bursa (e.g. retrocalcaneal on the Achilles tendon).

Disorders arise from acute trauma, repeated micro-overload, misalignment, instability or systemic influences. A targeted treatment always takes into account the structure, the load and the individual activity profile.

Typical complaints and pain locations

• Back heel or along the Achilles tendon: Pain at start in the morning, start-up pain, thickening or rubbing noises.
• Outer malleolus: stabbing pain when exerted, possibly snapping or rubbing - indication of peroneal tendons.
• Inner ankle/inner side: Pain on exertion with flattening of the arch of the foot – possible with posterior tibialis involvement.
• Anterior ankle/instep: Pain when lifting the toes – indication of extensor overload.
• Lower calf/shin: pulling pain along the edge of the shin (shin splints/MTSS).
• Sole of foot (near rear foot): morning start-up pain – plantar fascial irritation.
• Swelling, warmth, irritation: conceivable in the case of bursa or tendonitis.
• Feeling of instability, tendency to twist: often after ligament overstretching or injury.

Frequent topics and in-depth subpages

The following articles delve deeper into typical clinical pictures of the soft tissues of the ankle joint. They help with classification, show conservative options and explain when further clarification makes sense.

• Achilles tendon tendonitis: Irritation and degeneration conditions with start-up and stress pain.
• Achilles tendon attachment irritation / enthesiopathies: complaints at the heel bone insertion, sometimes with involvement of the bursa.
• Peroneal tendon tendinopathy: external ankle pain, possibly rubbing/snapping, load-dependent.
• Tibialis posterior tendinitis: inner ankle pain, flattening of the arch, fatigue.
• Tibialis anterior irritation: tension pain, discomfort when lifting the foot.
• Flexor and extensor tendinopathies: Irritation of the flexors/toe lifters with local tenderness.
• Plantar fascia irritation (rearfoot reference): morning start-up pain, locally on the heel.
• Ligamentous irritation after overload: pulling ligament attachment pain without acute trauma.
• Ligament overstretching due to training or incorrect loading: recurring sprains possible.
• Shin Splints / Medial Tibial Splint Syndrome (MTSS): Shin splints pain when running.

Depending on the findings, adjacent structures also become relevant: joints/cartilage, bones/structures, bursa/soft tissues as well as systemic or functional causes of pain.

Causes and risk factors

• Stress jumps: rapid increase in running volume, speed, jumps or changes of direction.
• Technology and surface: hard floors, steep slopes, unsuitable footwear.
• Foot shape and axes: arched arches, hollow feet, leg axis deviations, leg length differences.
• Muscular factors: calf shortening, deficits in strength, coordination and core stability.
• Previous injuries: ligament lesions, instability, scarring.
• General factors: obesity, smoking, metabolism (e.g. diabetes), lipid metabolism disorders.
• Medication: rarely, fluoroquinolones or statins can affect tendons (consult with a doctor).

Diagnostics: targeted and imaging if necessary

At the beginning there is a careful anamnesis, an examination of the course of pain and stress profile as well as a structured examination at rest and during function. We check axial relationships, arches, tendon glide, ligament stability and load tests.

• Sonography (ultrasound): dynamic, close to the tendons and radiation-free – ideal for assessing tendons, bursa and fluid.
• MRI: if the findings are unclear, partial tears/tears are suspected, extensive inflammation or if conservative therapy is not sufficient.
• X-ray: primarily to rule out bony involvement (e.g. spurs, avulsions) or to assess the axis.
• Laboratory: only if infection or systemic rheumatic causes are suspected.

The findings are compared with your goals (everyday life, job, sport). This results in an individual, realistically dosed therapy plan.

Conservative therapy: evidence-based and relevant to everyday life

First line is almost always conservative. The aim is pain-adapted stress control, rebuilding resilience and a sustainable return to everyday life and sport. Promises of healing are not given; the course is individual.

• Acute measures: relative rest, cooling, compression bandage, elevation; early, pain-adapted mobility instead of complete immobility.
• Load management: temporary adjustment of scope, intensity and surface; gradual increase after pain monitoring.
• Therapy exercises: eccentric calf and tendon training (e.g. for Achilles tendon), progressive tendon loading (isometric → dynamic → plyometric).
• Physiotherapy: manual techniques, myofascial treatment, tendon gliding training, coordination and neuromuscular training.
• Aids: taping, bandages/orthoses; Insoles or heel wedges depending on the axis and symptoms.
• Shoe advice: sufficient cushioning/support, changing worn footwear, sport-specific adjustment.
• Medication: short-term anti-inflammatory painkillers after consultation with a doctor; local cooling/anti-inflammatory gels.
• Shock wave therapy: option for chronic tendinopathies/enthesiopathies; Effectiveness depends on indication, information required.
• Infiltrations: targeted and reserved, if necessary with ultrasound support; Corticoids should not be administered in, but rather in the vicinity of, tendons (note the risk of tendon rupture).
• Regenerative procedures (e.g. PRP): can be considered depending on the findings; Evidence varies depending on the structure – individual explanation.

Operational options – rare, targeted and after exhausting conservatives

As a rule, operations should only be considered in the case of structural lesions (e.g. tendon rupture, severe tendon subluxation), therapy-resistant instability or persistent functional deficits despite consistent conservative treatment. The intervention depends exactly on the structure and activity profile.

• Tendon suturing/debridement, tenosynovectomy for stubborn tendonitis.
• Retinacula reconstruction in peroneal tendon subluxation.
• Ligament reconstructions/plastics for chronic instability (see ligament injuries/instabilities).
• Achilles tendon suturing in the event of a rupture, if necessary with additional augmentation - indication is strictly individual.

We provide neutral advice, examine conservative alternatives and explain the benefits, risks and the expected rehabilitation path.

Prevention and self-management

• Gradual increase in training, change in load (cross training), sufficient regeneration.
• Targeted strength and coordination training: eccentric calf strength, peroneal muscles, arch stability, core.
• Balance/proprioception: one-legged stance, wobble board, landing control during jumps.
• Flexibility: gentle stretches of the calf and foot muscles, no forced, painful stretching.
• Adapt footwear and, if necessary, insoles to your activity and foot shape.
• Take early warning signs seriously: reduce stress and have an orthopedic check in good time.

When should you seek medical advice?

• Sudden whiplash/snap at the heel with loss of function (suspected crack).
• Severe swelling, misalignment or inability to bear weight after trauma.
• Redness, overheating, fever or pain at rest at night.
• Increasing instability or repeated twisting.
• Persistent symptoms despite rest and self-exercises for several weeks.

What you can expect in our practice in Hamburg

At the orthopedics department at Dorotheenstrasse 48, 22301 Hamburg, you will receive a structured assessment of ankle soft tissue problems. We combine a thorough clinical examination with sonography, take axle and shoe factors into account and create an individual therapy and training plan.

• Clear diagnosis and explanation of the structure(s) involved.
• Conservative therapy prioritized: exercise program, load control, aids.
• Transparent information about optional procedures (e.g. shock wave, PRP) with no guarantee of results.
• Return-to-activity plan with objective functional criteria.
• Interdisciplinary collaboration if necessary (physiotherapy, sports science).

Delimitation: If it's not just soft tissue

Ankle joint problems can also come from the joint itself (cartilage/impingement), from the bone (stress reactions/fractures) or from systemic causes (e.g. rheumatic). A differentiated diagnosis ensures that the correct structure is treated.