Foot deformities

Anatomy and function of the foot

The foot consists of 26 bones, numerous joints, ligaments, tendons and muscles. It supports the body weight, dampens forces and enables propulsion and balance. The interaction of the longitudinal and transverse arches distributes loads efficiently and protects tendons and nerves.

• Forefoot: Toes and metatarsals for push-off and fine adjustment.
• Metatarsal: The sphenoid, scaphoid and cuboid bones stabilize the arch.
• Rear foot: ankle bone (talus) and heel bone (calcaneus) for axis guidance and power transmission.
• Ligaments and plantar fascia: passive supports of the arches.
• Muscles/tendons (e.g. tibialis posterior, peroneal tendons): dynamic stabilization.

Disturbances in one part - such as ligament laxity, tendon weakness or bone misalignment - can change the entire statics and promote deformity.

What are foot deformities?

Foot deformities are permanent or recurring deviations from the normal shape or axis of the foot. They can be flexible (passively correctable) or rigid (structurally fixed), develop slowly or be congenital. Not every misalignment is pathological – the symptoms, function and progression are crucial. The aim of the treatment is not an “ideal” appearance, but rather a resilient, less painful function.

• Flexible vs. rigid: important for therapy planning and prognosis.
• Congenital vs. acquired: e.g. B. Clubfoot is congenital, flatfoot is often acquired.
• Symptomatic vs. asymptomatic: not every deviation requires therapy.

Typical complaints and warning signs

Symptoms vary depending on the shape and severity of the deformity. The focus is often on overuse pain, pressure points or problems with shoes.

• Stress-dependent pain in the forefoot, midfoot or rear foot, often worse in the evening.
• Pressure points, calluses, corns, blisters - especially with splayfoot.
• Feeling of instability or “folding” in the rear foot.
• Reduced walking distance, rapid fatigue, altered gait.
• Difficulty finding suitable footwear.
• In children: noticeably rapid wear of shoes, toe walking (e.g. in equinus), persistent asymmetries.

Causes and risk factors

Several factors usually work together. In addition to genetic predisposition, lifestyle, connective tissue quality, neurological and rheumatological influences all play a role.

• Genetics and connective tissue weakness (collagen variants, hypermobility).
• Neuromuscular influences (tendon insufficiency, peripheral neuropathy).
• Previous injuries (torn ligaments, fractures), malunion.
• Inflammatory rheumatic diseases, osteoarthritis.
• Obesity, jobs requiring intensive standing/walking, training errors in sports.
• Footwear: tight, hard or very high-heeled shoes.
• Metabolic disorders (e.g. diabetes with sensory impairment).

Common foot deformities at a glance

Below you will find the most important deformities with a brief description. Detailed information can be found on the respective subpages.

• Splayfoot: Lowering of the transverse arch with widening of the forefoot; Often there is tenderness under the metatarsal heads, calluses, shoe conflicts.
• Flatfoot: Flattened longitudinal arch; Often acquired in adults, variable from asymptomatic to painful with overloading of the tendons.
• Arched arch foot: combination of lowered longitudinal arch and inwardly tilted rear foot; may be associated with tibialis posterior tendon insufficiency.
• Pes valgus: Valgated hindfoot position (often with pronation); often flexible in children, and needs to be clarified if there are complaints.
• Hollow foot (Pes cavus): Excessive longitudinal arch with increased load on the heel and forefoot; frequent instabilities and pressure points.
• Clubfoot: Congenital complex deformity (pointe, varus, adduction component); Early treatment is important, often Ponseti plaster concept.
• Equinus: Shortened calf muscles/Achilles tendon with lack of dorsiflexion; observable as toe walking, can cause discomfort in the forefoot.
• Tarsal Coalition: Bone/cartilage bridge between tarsal bones; limited mobility, pain under strain, often noticeable in adolescence.
• Metatarsus adductus: inward position of the forefoot; mostly in childhood, variable in stiffness and severity.

Diagnostics: structured and close to everyday life

The diagnosis is based on a thorough anamnesis, clinical examination while standing and moving, and – if necessary – imaging procedures. It is important to distinguish between flexible and rigid forms and to record accompanying factors.

• Anamnesis: pain history, stress profile, footwear, previous illnesses, injuries.
• Inspection/gait pattern: standing axes, signs of wear on shoes, toe stand/one leg toe stand.
• Functional tests: mobility of the subtalar and Chopart joints, calf muscle length testing.
• Pedobarography/foot pressure measurement and, if necessary, video gait analysis (depending on the question).
• X-ray while standing for axis and joint assessment; Ultrasound for tendon issues.
• MRI/CT for unclear findings, suspected coalition or complex tendon/bone damage.

Conservative treatment – ​​our first approach

The aim of conservative therapy is better load distribution, pain relief and improved function in everyday life. The measures are individually combined and gradually adapted.

• Patient education and activity control: dose stress, plan breaks, avoid pain provocations.
• Physiotherapy: stretching (especially calf muscles/plantar fascia), strengthening the internal foot muscles and tibialis posterior/peronea, sensorimotor training.
• Insoles supply: longitudinal and transverse arch support, soft bedding, if necessary sensorimotor elements; Regular fit checks.
• Shoe advice: firm heel support, sufficient toe room, moderate drop; If necessary, rocker sole or stiffer midsole.
• Tapes/Orthoses: temporary stabilization, pressure relief and proprioception promotion.
• Podiatry/skin care: treatment of calluses, nails, pressure protection (e.g. silicone pads).
• Pain management: local measures (cold, topicals), anti-inflammatory medications if indicated and tolerated.
• Weight management and general training control to reduce foot load.
• Children: depending on the deformity, positioning splints, stretching programs; for clubfoot, the Ponseti concept is standardized in specialized centers.

Regenerative or invasive procedures are used cautiously and only after careful information about their benefits, limitations and evidence. Conservative measures are always in the foreground.

When should surgery be considered?

An operation may make sense if conservative measures have been consistently applied and relevant pain, significant functional deficits or a progressive deformity still exist. The goals are to correct the axis, relieve strain on overloaded structures and improve walking ability.

• Soft tissue interventions: tendon lengthening/relocation, release of shortened structures.
• Bone corrections (osteotomies): e.g. B. on the heel bone, metatarsal or sphenoid bones for axial position.
• Arthrodeses: joint-stiffening procedures for rigid misalignments/osteoarthritis.
• Specific procedures depending on the deformity (e.g., tarsal coalition or cavus foot corrections).

The type of procedure, follow-up treatment (e.g. partial weight-bearing, immobilization, physiotherapy) and the expected course are discussed individually. An individual result cannot be guaranteed.

Everyday life, training and self-help

Many sufferers benefit from simple routines and wise choices of shoes and activities. The key is regularity and a slow increase.

• Daily exercises: calf and plantar fascia stretches, “short foot,” towel claws, balance exercises.
• Shoes: enough space in the forefoot, stable heel support, not too soft in the sole; Match sports shoes to your activity.
• Wear insoles consistently and change them seasonally/depending on the shoe if necessary.
• Load management: interval principle instead of continuous load, increase shock loads gradually.
• Gentle endurance: cycling, swimming, Nordic walking; Dosage high-jump-intensive sports.
• Skin care: Treat calluses gently, cushion pressure points; watch out for bubble formation.
• Walking barefoot on soft, level surfaces in moderation - consider individually (not in the case of neuropathy).

Prevention and early detection

Not every misalignment can be avoided. Nevertheless, symptoms can often be delayed or reduced through early awareness and adapted habits.

• Regular foot exercises and ankle mobilization.
• varying shoes and heel heights; Check deposits regularly.
• Weight management supports joint health.
• Increasing the load in sport slowly and in a structured manner.
• In children: observe development; If asymmetries, pain or rigidity persist, seek medical advice.
• People with diabetes/neuropathy: daily foot inspection, podiatry support.

Children's feet versus adult feet

Children's feet are soft, grow quickly and often show temporary abnormalities. A flexible arched foot is usually physiological in preschool age. The decisive factors are discomfort, stiffness and development over time. In adults, overload, tendon insufficiency and degenerative changes are often at the forefront.

• Children: observation, exercise programs, appropriate footwear; Therapy for pain, functional limitations or rigid findings.
• Adolescents: Growth periods may accentuate deformities; timely adjustment of training/insoles.
• Congenital deformities (e.g. clubfoot): early, standardized treatment in experienced centers.

Possible consequences of untreated misalignments

If symptomatic misalignments remain untreated, overloading and secondary damage can increase. Early, conservative control can often have a positive influence on the course.

• Overload syndromes of tendons (e.g. tibialis posterior, peroneal tendons).
• Pressure ulcers, calluses and recurring skin problems.
• Metatarsalgia, painful forefoot problems.
• Improper loading arthrosis in the middle/rear foot or upper ankle joint.
• More frequent twisting events with ligament lesions.

When should you seek medical advice?

• Persistent pain despite protection/adapted footwear.
• Increasing misalignment or significant asymmetry.
• New instability, frequent twisting.
• Redness, swelling, warmth with suspected fever (rule out infection).
• Children with pain, limping or rigid deformities.
• Before planned increases in physical activity if you have existing complaints.

Your orthopedic care in Hamburg-Winterhude

Our practice at Dorotheenstrasse 48, 22301 Hamburg, offers structured diagnostics and conservative therapy planning for foot deformities - from an everyday exercise program to insoles and shoe advice through to the coordination of further measures. If necessary, we discuss options on an interdisciplinary basis and refer you to experienced partners for specific procedures. You can easily receive appointments online via Doctolib or by email.