Podiatry Online

Plantar plate tears are an important but often under-recognized cause of forefoot pain, most commonly affecting the lesser metatarsophalangeal joints and especially the second toe. They can produce pain beneath the metatarsal head, swelling, toe drift, and progressive instability that may mimic or lead to a crossover toe deformity.

Anatomy and function

The plantar plate is a strong fibrocartilaginous structure on the plantar side of the metatarsophalangeal joint that helps stabilize the toe during gait and protects the joint surfaces. In the lesser toes, it works with the collateral ligaments, capsule, flexor tendons, and intrinsic muscles to resist excessive dorsiflexion and prevent sagittal and transverse plane instability. When the plate fails, the joint loses a major passive stabilizer, and abnormal toe alignment can develop over time.

How tears develop

Plantar plate tears may occur after acute trauma, but many are degenerative and accumulate gradually under repetitive load. The second MTP joint is most frequently affected because it bears high mechanical stress during propulsion and is often subjected to long second metatarsals, hallux valgus, or overload patterns that increase strain on the plantar structures. As the pathology progresses, attenuation of the plate can lead from pain alone to instability, subluxation, and eventually deformity.

Clinical presentation

Patients usually report pain in the ball of the foot, often localized beneath a specific metatarsal head. Swelling, a feeling that the toe is “coming up” or shifting, and pain on push-off are common, and some patients notice a widening between toes or crossover of the affected digit. In more advanced cases, a hammer toe or clawing posture may appear as the toe loses plantar support. Because the symptoms can resemble metatarsalgia, neuroma, or MTP synovitis, plantar plate injury is frequently missed early. Some people describe a feeling of the sock bunched up under the foot.

Diagnosis

Diagnosis begins with careful history and physical examination, because clinical suspicion is often the key to identifying the problem. Examination may reveal tenderness at the plantar MTP joint, dorsal subluxation, loss of toe purchase, and pain with drawer testing or toe instability maneuvers. Weight-bearing radiographs can show toe deviation, MTP incongruity, arthritis, and metatarsal parabola abnormalities, while MRI and ultrasound can help confirm the tear and define its extent. Early diagnosis matters because deformity and instability become harder to reverse once chronic attenuation has occurred.

Non-operative care

Initial treatment is usually conservative and aims to reduce pain, stabilize the joint, and limit further progression. Common measures include activity modification, footwear with a deep toe box, metatarsal offloading, taping or splinting of the toe into a slightly plantar-flexed position, and orthoses designed to reduce pressure beneath the involved metatarsal head. Symptom relief may occur even if the tear itself does not fully heal, especially when degeneration is advanced. In practice, conservative management is most useful for early or partial injuries and for patients whose symptoms are controllable without major deformity.

Surgical management

Surgery is considered when pain persists, instability progresses, or deformity becomes functionally significant despite conservative care. Procedures may include a metatarsal shortening osteotomy to offload the joint, direct plantar plate repair, or both, and fixed hammertoe deformity may require additional corrective procedures. Surgical planning depends on the degree of instability, the presence of associated deformity, and whether the tear is isolated or part of a broader forefoot overload pattern. Outcomes are generally aimed at restoring alignment, relieving pain, and preventing progression rather than simply “healing” the tissue in isolation.

Prognosis and clinical importance

The overall prognosis depends on the chronicity of the tear, the amount of instability, and how early the condition is recognized. Mild injuries can improve substantially with offloading and stabilization, but longstanding tears often lead to persistent deformity and may require operative correction. For clinicians, the main challenge is to distinguish plantar plate pathology from other causes of forefoot pain before the joint becomes irreversibly unstable. For patients, the key message is that ongoing pain under the forefoot, especially with toe drift or loss of toe purchase, should not be dismissed as simple metatarsalgia.

A concise way to think about it is that the plantar plate is the forefoot’s “check-rein” against toe instability: once it weakens, pressure shifts, the toe can drift, and the problem tends to become progressively more structural.

Plantar fasciitis is best managed with a staged, largely conservative approach that addresses mechanical overload of the plantar fascia, modulates pain, and restores function over time. Most patients improve within 3–6 months with structured nonoperative care, and only a minority require advanced interventions such as injections or surgery.

Pathophysiological basis and principles

Although traditionally labelled an “itis,” plantar fasciitis is now recognised as a degenerative enthesopathy rather than a purely inflammatory process, characterised by micro‑tearing and fibroblast proliferation at the medial calcaneal origin. Repetitive tensile loading from prolonged standing, running, pes planus or cavus, tight gastrocnemius–soleus complex, and suboptimal footwear contribute to overload and impaired tissue healing. Treatment therefore centres on reducing pathological load, optimising the biomechanical environment, and promoting gradual collagen remodelling rather than simply suppressing inflammation.

First‑line conservative management

Initial management is patient‑directed and focuses on relative rest, simple analgesia, and stretching. Activity modification includes reducing or temporarily stopping aggravating activities such as running or long periods of standing, and substituting with low‑impact exercise like cycling or swimming. Ice massage to the plantar heel, short courses of oral or topical NSAIDs, and occasional use of acetaminophen can help control pain sufficiently to allow participation in rehabilitation exercises

Stretching is the cornerstone of early treatment, particularly home‑based plantar fascia and gastrocnemius stretches performed several times daily. Randomised evidence shows that specific plantar fascia stretches yield substantial reductions in pain over the first 6–8 weeks and are superior to some supervised physical therapy regimens alone. Deep friction massage to the plantar fascia and calf, often taught by a physical therapist, can complement stretching by improving local circulation and reducing myofascial restriction.

Footwear, orthotics, and taping

Modifying footwear and providing mechanical support to the arch and heel are key elements of conservative care. Patients are advised to avoid worn, unsupportive shoes and to use footwear with adequate midsole cushioning, heel height, and rearfoot stability. Prefabricated silicone heel cups, gel cushions, or arch supports can reduce peak plantar loading and are supported by evidence as effective adjuncts when combined with stretching.

Functional foot orthoses, whether prefabricated or custom devices, are widely used to control excessive pronation, redistribute pressure, and reduce strain on the plantar fascia. Clinical guidelines recommend their use in patients whose symptoms persist after basic measures, with many studies reporting improved pain and function over 6–12 weeks. Low‑Dye and other taping techniques can provide short‑term relief by temporarily supporting the medial arch and unloading the plantar fascia, and are particularly useful in acute presentations or to “test” orthotic concepts before prescription.

Night splints, which hold the ankle in dorsiflexion and prevent the plantar fascia from shortening overnight, can reduce the characteristic first‑step pain and are effective in chronic cases when used for several weeks. Their benefit appears greatest in patients who present with severe morning symptoms and who have coexisting gastrocnemius tightness.

Physical therapy and intermediate modalities

For patients who do not respond adequately to first‑line measures over 6–8 weeks, formal physical therapy can add structured stretching, strengthening, and adjunctive modalities. Therapists often employ gastrocnemius–soleus and plantar fascia stretches, eccentric calf strengthening, proprioceptive training, and soft tissue techniques to optimise lower limb mechanics. Cryotherapy, iontophoresis with corticosteroids or acetic acid, and ultrasound or laser‑based treatments may be incorporated to reduce pain and facilitate exercise participation.

Recent evidence supports photobiomodulation therapy (PBMT), including low‑level laser therapy, as an intermediate option for persistent plantar fasciitis, with meta‑analyses showing significant short‑term pain reduction and improved outcomes when combined with exercise. Extracorporeal shock wave therapy (ESWT), in radial or focused forms, has also become an important noninvasive modality for chronic cases, producing faster pain relief than some alternatives and contributing to reductions in fascia thickness on imaging. These therapies are typically considered after 8–20 weeks of unsuccessful standard conservative care.

Injection therapies and minimally invasive options

When symptoms remain disabling beyond 3–6 months despite comprehensive conservative management, injectable and minimally invasive procedures may be appropriate. Corticosteroid injections have long been used and can provide short‑term pain relief, but carry recognised risks including plantar fascia rupture and fat pad atrophy; thus most guidelines recommend judicious use and avoidance of repeated injections. Dry needling (percutaneous fenestration) of the fascia, even without drug delivery, has shown pain reduction within weeks by stimulating a local healing response

Regenerative approaches such as platelet‑rich plasma (PRP), autologous blood injections, hypertonic dextrose prolotherapy, and newer agents like polydeoxyribonucleotide or calcium phosphate aim to enhance fibroblast activity and collagen deposition. Systematic reviews indicate that PRP often yields superior medium‑term pain relief and functional improvement compared with corticosteroid injection or ESWT in chronic plantar fasciitis. Prolotherapy with dextrose has demonstrated short‑ and long‑term improvements comparable to radial ESWT when administered in serial ultrasound‑guided injections. Botulinum toxin injections into the calf musculature may reduce tension transmitted to the fascia and have emerging evidence in selected chronic patients.

Surgical intervention and prognosis

Surgery is reserved as a last resort for recalcitrant plantar fasciitis that persists beyond 12 months despite exhaustive conservative, physical therapy, and injection‑based treatments. Endoscopic or open partial plantar fasciotomy, sometimes combined with gastrocnemius recession, aims to release the overloaded portion of the fascia and rebalance force distribution through the foot. Contemporary evidence suggests endoscopic plantar fascia release offers substantial improvement in pain and AOFAS scores with lower complication rates than open procedures, though risks such as lateral column pain, nerve injury, and arch destabilisation remain.

Overall, plantar fasciitis is a self‑limiting condition in most individuals, with more than 90% achieving symptomatic relief through conservative treatment within 3–6 months. The best outcomes occur when therapy is initiated early and tailored to individual biomechanical risk factors, combining education, stretching, load management, mechanical support, and, when needed, intermediate modalities or regenerative injections. For clinicians, a phased, evidence‑based framework—from initial home care through orthoses and physical therapy, then selective advanced therapies, and finally surgery—provides a clear structure for guiding patients from acute heel pain back to full function.

Pes cavus, commonly called a high-arched or “claw” foot, is a structured deformity in which the longitudinal arch of the foot is abnormally elevated, producing a relatively stiff foot with increased pressure under the heel and forefoot. Although it can be an isolated, idiopathic variant, pes cavus is often a clinical sign of underlying neuromuscular disease, and its management must therefore address both the foot morphology and the causative pathology.

Definition and Classification

Pes cavus is defined as an exaggerated elevation of the medial longitudinal arch, visible in the sagittal plane, and is often accompanied by associated deformities such as hindfoot varus, forefoot adduction, and plantar flexion of the first ray. The terms “pes cavus” and “pes cavovarus” are frequently used interchangeably, though cavovarus implies a triplane deformity with varus of the hindfoot and adduction of the forefoot superimposed on the cavus component.

Three main subtypes are commonly described: anterior cavus, posterior cavus, and mixed cavus. Anterior cavus is associated with a plantar-flexed first ray and forefoot pronation, while posterior cavus is dominated by a calcaneal pitch increase and hindfoot varus; mixed cavus combines features of both. In clinical practice, the distinction is important because it guides both biomechanical assessment and surgical planning.

Epidemiology and Aetiology

In adults, the prevalence of pes cavus is estimated at approximately 10–29%, with no clear gender predominance. Many cases are idiopathic or familial, but a significant proportion are acquired and linked to neurological or musculoskeletal conditions.

Neurological aetiologies include:

• Hereditary motor and sensory neuropathies, particularly Charcot–Marie–Tooth disease
• Spinal cord disorders such as spinal dysraphism, tumors, or trauma
• Upper motor neuron conditions like cerebral palsy or stroke
• Peripheral nerve lesions, for example from compartment syndrome or trauma

Non-neurological causes include congenital deformities (e.g., clubfoot residual deformity), trauma with malunion, inflammatory conditions, and muscle imbalances secondary to local pathology. Importantly, the presence of a rigid, progressively worsening cavus foot in a child or young adult should prompt investigation for an underlying neuromuscular disorder.

Clinical Features and Symptoms

Patients with pes cavus typically present with:

• Pain localized to the heel, lateral forefoot, and sometimes the arch, due to focal overload
• Recurrent ankle sprains and a sense of instability, as the high arch reduces the contact area and compromises shock absorption
• Clawing or hammertoes, caused by imbalance between intrinsic and extrinsic muscles of the foot
• Difficulty with footwear, as the high arch and rigid foot shape can create pressure points and poor fit.

Gait abnormalities may include a shortened stance phase, increased lateral loading, and a tendency to “stiff-knee” gait in more severe neuromuscular cases. In children, parents may note that the child walks on the outer border of the foot or has frequent “falling over” of the ankle.

Assessment and Diagnosis

A comprehensive assessment begins with a detailed history, including family history of neuropathy, developmental milestones, and progression of the deformity. Neurological examination should evaluate distal muscle strength, tone, reflexes, and sensory function, as subtle signs of neuropathy may be present even when the foot deformity is the most obvious feature

Physical examination focuses on:

• Arch height and flexibility: a rigid cavus suggests a more established or neuromuscular cause
• Hindfoot position: varus is common and may be fixed or reducible
• Forefoot alignment: adduction and pronation are frequent
• Toe posture: claw toes indicate intrinsic weakness or imbalance
• Muscle bulk and tendon tightness, particularly the Achilles and plantar fascia.[acnr.co]

Radiographic evaluation includes weight-bearing foot X-rays to measure calcaneal pitch, first-ray angle, and other indices of arch elevation and hindfoot/forefoot alignment. In suspected neuromuscular cases, further investigations such as electromyography (EMG), nerve conduction studies, or genetic testing may be warranted to identify the underlying condition

Management Principles

Management of pes cavus is guided by the severity of the deformity, the presence of symptoms, the flexibility of the foot, and the underlying aetiology. The overarching goals are to reduce pain, improve function and stability, prevent progression, and, where possible, address the causative condition.

Conservative Management

Conservative measures are the first line of treatment for mild to moderate, flexible deformities:

• Orthotic devices: Custom foot orthoses with appropriate arch support, heel cupping, and forefoot relief can redistribute pressure, improve stability, and reduce pain. In neuromuscular cases, orthoses may also need to accommodate claw toes or varus alignment.[
• Footwear modification: Shoes with a supportive midsole, adequate cushioning, and a wide toe box help accommodate the high arch and clawed toes while reducing lateral overload.
• Physical therapy: Targeted stretching of the Achilles tendon and plantar fascia, alongside strengthening of intrinsic foot muscles and hip stabilizers, can improve flexibility and dynamic control. Gait retraining may be beneficial in cases with significant instability.

Conservative management is often insufficient for rigid, severe deformities or when there is progressive neurological deterioration, but it remains central in the long-term management of many patients.

Surgical Management

Surgery is indicated when conservative measures fail, when the deformity is markedly rigid, or when there is significant functional impairment or recurrent injury. The choice of procedure depends on the subtype of cavus, the site of the deformity, and the underlying pathology.

Common surgical options include:

• Soft-tissue procedures: Tendon transfers (e.g., flexor digitorum longus to first metatarsal) and lengthening of tight structures (Achilles, plantar fascia) to correct muscle imbalance and improve alignment.
• Osteotomies: Calcaneal osteotomies to reduce hindfoot varus; first-ray elevating osteotomies to correct plantar flexion of the first metatarsal; and midfoot or forefoot osteotomies to address adduction and arch elevation.
• Arthrodesis: In severe, rigid deformities, especially in the context of neuromuscular disease, fusion of selected joints (e.g., subtalar or triple arthrodesis) may be necessary to achieve a stable, plantigrade foot.

Surgical planning must be carefully integrated with the management of the underlying neuromuscular condition, as recurrence or progression may occur if the primary disease is not addressed.

Pes cavus is not merely a structural variant of the foot but a potentially significant clinical sign that warrants thorough evaluation for underlying neuromuscular pathology. Its management requires a nuanced combination of biomechanical understanding, neurological assessment, and tailored treatment ranging from orthotics and physical therapy to complex reconstructive surgery. For podiatrists and allied professionals, recognizing the patterns of cavus deformity, understanding its subtypes, and integrating conservative and surgical options within a broader diagnostic framework are essential to optimising outcomes for patients with this challenging condition.

Peroneal tendonitis is a common yet often under-recognized cause of lateral ankle pain, particularly in athletic populations and individuals with biomechanical abnormalities of the foot and ankle. The condition involves inflammation or degeneration of the peroneal tendons—specifically the peroneus longus and peroneus brevis—as they course posterior to the lateral malleolus and insert into the foot. Given their essential role in dynamic ankle stability and foot function, pathology affecting these tendons can significantly impair gait and athletic performance.

The peroneal tendons originate from the lateral compartment of the leg. The peroneus longus arises from the proximal fibula and lateral tibial condyle, while the peroneus brevis originates more distally from the fibular shaft. Both tendons pass through the retrofibular groove, secured by the superior peroneal retinaculum, before diverging distally. The peroneus brevis inserts onto the tuberosity of the fifth metatarsal, whereas the peroneus longus courses plantarward across the cuboid and inserts at the base of the first metatarsal and medial cuneiform. Functionally, these tendons act to evert the foot and contribute to plantarflexion, while also providing lateral ankle stability, particularly during the stance phase of gait.

Peroneal tendonitis typically arises from repetitive overuse, resulting in microtrauma and subsequent inflammation or tendinopathy. It is frequently observed in runners, especially those who train on uneven surfaces or perform excessive hill running. Sudden increases in training intensity, duration, or frequency are well-established risk factors. Biomechanical contributors play a significant role; individuals with cavovarus foot alignment are particularly predisposed due to increased lateral column loading and chronic tensile stress on the peroneal tendons. Additionally, lateral ankle instability following previous sprains can lead to compensatory overactivation of the peroneal muscles, further exacerbating tendon overload.

Clinically, patients with peroneal tendonitis present with lateral ankle pain that may radiate distally along the course of the tendons. Pain is typically exacerbated by activity, particularly during resisted eversion or passive inversion of the foot. Swelling and tenderness posterior to the lateral malleolus are common findings, and in some cases, crepitus may be appreciated, suggesting tenosynovitis. Chronic cases may demonstrate tendon thickening or weakness in eversion strength. It is important to differentiate peroneal tendonitis from other causes of lateral ankle pain, such as lateral ligament sprains, sinus tarsi syndrome, or fractures of the fifth metatarsal.

Diagnostic evaluation is primarily clinical but may be supplemented by imaging in ambiguous or refractory cases. Ultrasound provides a dynamic, cost-effective modality for assessing tendon integrity, detecting tenosynovitis, and identifying subluxation. Magnetic resonance imaging (MRI) offers superior soft tissue contrast and is particularly useful in evaluating tendon tears, degenerative changes, or associated pathology such as retinacular injury. Imaging is especially indicated when symptoms persist despite conservative management or when surgical intervention is being considered.

Management of peroneal tendonitis is predominantly conservative and focuses on reducing inflammation, correcting biomechanical contributors, and gradually restoring function. Initial treatment typically includes activity modification, rest, and the use of nonsteroidal anti-inflammatory drugs (NSAIDs) where appropriate. Cryotherapy and compression may help manage acute inflammation. Immobilization in a walking boot may be indicated in more severe cases to allow tendon healing.

A key component of treatment involves addressing underlying biomechanical abnormalities. Foot orthoses can be particularly beneficial, especially in patients with cavus or varus alignment. Devices designed to increase lateral forefoot support and reduce excessive supination can offload the peroneal tendons. Lateral wedging or modifications to improve pronatory moments may be considered, depending on the individual’s gait pattern. Footwear modifications, including the use of stable, cushioned shoes with adequate lateral support, are also important in mitigating excessive tendon stress.

Rehabilitation plays a critical role in recovery and prevention of recurrence. Physiotherapy programs typically focus on progressive strengthening of the peroneal muscles, proprioceptive training, and correction of movement patterns. Eccentric loading exercises have shown efficacy in the management of tendinopathies and may be incorporated into rehabilitation protocols. Additionally, addressing proximal kinetic chain deficits, such as hip abductor weakness or poor neuromuscular control, can reduce compensatory loading at the ankle.

In cases where conservative treatment fails, or when structural abnormalities such as tendon tears or subluxation are present, surgical intervention may be warranted. Procedures may include tendon debridement, repair of longitudinal splits, or reconstruction of the superior peroneal retinaculum. Postoperative rehabilitation is essential to restore strength and function, with gradual return to activity over several months.

Prevention of peroneal tendonitis centers on appropriate training practices, biomechanical optimization, and early intervention. Gradual progression of training loads, adequate recovery periods, and cross-training can help minimize overuse injuries. Screening for and addressing biomechanical risk factors, particularly in high-risk populations such as runners, is essential. Education on proper footwear selection and terrain considerations can further reduce the risk of tendon overload.

Peroneal tendonitis is a multifactorial condition that reflects the interplay between mechanical loading, anatomical predisposition, and activity demands. A thorough understanding of the underlying biomechanics and risk factors is essential for accurate diagnosis and effective management. With appropriate conservative care, most patients achieve favorable outcomes; however, recognition of refractory cases and timely referral for advanced imaging or surgical consultation is critical. For clinicians, particularly those involved in sports medicine and podiatry, a comprehensive and individualized approach remains the cornerstone of successful treatment and long-term prevention.

Peroneal spastic flatfoot (PSFF) is a rigid, painful valgus deformity of the foot historically associated with protective spasm of the peroneal muscles, now recognized as a clinical syndrome rather than a single disease entity. While often linked to tarsal coalition, it can also occur in the absence of developmental anomalies, and in many cases the “spasm” is more accurately an adaptive shortening or reactive contraction secondary to an irritative lesion in the peritalar region. Because of its variable etiology and outdated terminology, modern podiatric and orthopedic literature frequently uses broader terms such as “rigid valgus foot” or specifies the underlying pathology (e.g., calcaneonavicular bar, talocalcaneal bridge, inflammatory arthritis)

Definition and Terminology

Peroneal spastic flatfoot describes a foot in which the arch is flattened, the heel is in valgus, and the foot is stiff or rigid, with apparent spasm of the peroneal muscles causing pain and limiting motion. Classic descriptions emphasize unilateral or bilateral rigid flatfoot with peroneal muscle tenderness and a foot that resists manual correction into inversion or neutral.

The term is now considered imprecise by many authors. In cases where tarsal coalition is present, the deformity is primarily a fixed structural problem due to abnormal bone union; the peroneal “spasm” is then an adaptive shortening rather than true primary spasm. In inflammatory cases (e.g., rheumatoid arthritis), peroneal spasm may be more genuine, but these are better classified separately as arthritic flatfoot with peroneal spasm. Consequently, contemporary texts often prefer “rigid flatfoot due to [specific coalition]” or reserve PSFF for idiopathic presentations where no coalition or other cause is identified.

Etiology

The most common cause of PSFF is tarsal coalition, particularly calcaneonavicular bars and talocalcaneal bridges. These congenital or developmental unions between tarsal bones restrict motion at the subtalar and peritalar joints, producing a rigid valgus deformity and peroneal irritation. Radiographs with special oblique views are often required to detect rudimentary forms of these coalitions.

However, PSFF can occur without detectable tarsal anomalies. Historical series have documented cases with normal tarsal skeletons in which peroneal spasm was clinically evident, suggesting that any irritative lesion in the peritalar region—such as trauma, sinus tarsi pathology, neoplasm, or inflammatory disease—can provoke protective peroneal contraction and a rigid flatfoot posture. Idiopathic peroneal spastic flatfoot (IPSF) is used when no cause is found after thorough clinical, laboratory, and imaging evaluation.

Less common etiologies include inflammatory arthropathies (notably rheumatoid arthritis), where true peroneal spasm may accompany joint destruction, and rare neoplasms manifesting as a rigid flatfoot deformity. Heavy mechanical stress on an architecturally abnormal or even normal foot is also hypothesized to contribute, with tarsal anomalies increasing susceptibility to breakdown under average stress.

Clinical Features

Patients typically present in childhood or adolescence with a painful, stiff foot that is flat and in valgus. The deformity is often unilateral but can be bilateral. The foot is rigid: inversion and abduction are limited, and the foot cannot be passively corrected into a neutral or varus position. Peroneal tenderness along the lateral foot and behind the lateral malleolus is characteristic, and patients may report pain in the sinus tarsi or lateral aspect of the foot

Gait may show an antalgic pattern, with avoidance of pronation and altered weight distribution. There may be a history of recurrent ankle sprains or minor trauma, but in some cases the onset appears spontaneous. In older children and adolescents, the deformity may be more established, with secondary changes in the soft tissues and alignment of the lower limb.

Diagnosis

Diagnosis relies on clinical examination, plain radiography, and advanced imaging. Clinical assessment confirms a rigid valgus flatfoot with peroneal tenderness and limited subtalar motion. Standard weight-bearing radiographs show a flattened longitudinal arch, valgus tilt of the calcaneus, and possible uncovering of the talonavicular joint

Specialized radiographic views (e.g., oblique calcaneonavicular views, lateral talar–calcaneal angle) are essential to detect calcaneonavicular bars and talocalcaneal bridges, which may be missed on routine films. CT is now the gold standard for defining the morphology and extent of tarsal coalitions, while MRI is valuable for evaluating soft tissue irritation, sinus tarsi pathology, and inflammatory or neoplastic processes. In cases where no coalition is identified, the diagnosis of IPSF is considered, and further investigation for inflammatory, neurologic, or neoplastic causes is warranted.

Management

Conservative management is the initial approach, particularly in children and those with mild symptoms. This includes activity modification, avoidance of high-impact loading, and use of immobilization or short-term casting in severe, refractory cases to reduce peroneal irritation and restore some flexibility. Orthotic devices designed to support the medial arch, control valgus, and offload the peroneal tendons are commonly used, along with physical therapy to improve peroneal and intrinsics strength and flexibility.

Surgical intervention is indicated when there is persistent pain, functional limitation, or progressive deformity despite conservative measures. For coalitions, the standard procedure is resection of the bar with interposition of fat, tendon, or other material to prevent recurrence and restore motion. In idiopathic cases or when resection is not feasible, procedures such as peroneal tendon lengthening, medial soft-tissue releases, or corrective osteotomies (e.g., calcaneal osteotomy, triple arthrodesis) may be required, depending on the degree of rigidity and deformity. The choice of procedure is guided by the underlying etiology, age, and functional demands of the patient.

Peroneal spastic flatfoot is best understood as a heterogeneous clinical syndrome characterized by rigid valgus flatfoot with peroneal irritation, rather than a single pathologic entity. While tarsal coalition is the predominant cause, idiopathic and inflammatory forms exist, and the term “spastic” is often misleading. Accurate diagnosis requires careful imaging to identify or exclude coalitions and other structural abnormalities, and management should be tailored to etiology, with conservative measures first and surgery reserved for refractory or advanced cases.

Heel pain is most commonly caused by overload or inflammation of the plantar fascia or Achilles tendon, but it can also arise from bony, neural, and systemic disorders. Because the heel tolerates significant ground reaction forces during weight-bearing, even subtle biomechanical or tissue changes can produce disabling symptoms. This essay outlines the principal causes of heel pain, grouped by anatomical region and mechanism, with reference to underlying pathophysiology and clinical context.

Plantar (inferior) heel pain

Plantar fasciitis

Plantar fasciitis is the single most common cause of heel pain. The plantar fascia is a thick aponeurosis that extends from the medial calcaneal tuberosity to the bases of the toes, acting as a dynamic stabiliser of the foot arch. Repetitive tensile loading—particularly with excessive pronation, tight calf muscles, or sudden increases in activity—produces microtrauma and degenerative changes at the fascial origin rather than purely inflammatory ones. Clinically, this manifests as sharp, focal pain at the medial inferior heel, often worst with the first steps after rest and improved with mild activity, then returning after prolonged standing.

Risk factors include obesity, flat feet or rigid high arches, abnormal gait (e.g. overpronation), prolonged standing on hard surfaces, and wearing shoes with poor cushioning or support. In chronic cases, traction at the calcaneal attachment may stimulate a plantar heel spur; the spur itself is often not painful, but reflects the same biomechanical overload that drives fasciitis.

Heel spur and fat pad atrophy

Heel spurs are bony projections that can develop on the inferior calcaneus in association with chronic plantar fasciitis or traction. While many patients with spurs are asymptomatic, some experience localized inferior heel pain, especially during weight-bearing after rest. Fat pad atrophy refers to thinning of the subcutaneous cushion beneath the calcaneus, commonly seen in older adults or after repeated steroid injections. Loss of this natural padding reduces shock absorption, producing deep, central heel pain that worsens with barefoot walking and improves when the patient walks on their toes, thereby shifting load away from the central heel.

Calcaneal stress fracture and bruising

Calcaneal stress fractures result from repetitive overload, often in runners, military personnel, or individuals who suddenly increase activity on hard surfaces. Pain is typically diffuse over the heel, present with weight-bearing, and may not improve with rest; compression of the calcaneus from side to side often reproduces pain. Early radiographs can be normal, necessitating MRI or bone scan for diagnosis. Acute heel bruise (contusion) occurs after a direct impact, such as landing from a jump or stepping on a hard object, causing localized pain and sometimes swelling.

Posterior (back of heel) pain

Achilles tendinitis and tendinopathy

Achilles tendinitis (more accurately, tendinopathy) is a common cause of posterior heel pain, affecting the tendon that connects the calf muscles to the calcaneus. Repetitive microtrauma from running, jumping, or abrupt increases in training load leads to degeneration and failed healing within the tendon, often with associated swelling and pain 2–6 cm above the calcaneal insertion. Pain is typically worse at the start of activity, may ease with warming up, and then recur after prolonged use. Risk factors include tight gastrocnemius–soleus muscles, poor footwear, and biomechanical abnormalities such as excessive pronation or hindfoot varus.

Retrocalcaneal bursitis and Haglund’s deformity

Retrocalcaneal bursitis involves inflammation of the bursa between the Achilles tendon and the anterior surface of the calcaneus, producing pain and swelling at the back of the heel, often with redness. It is frequently associated with Haglund’s deformity, a bony prominence on the posterosuperior calcaneus that impinges on surrounding soft tissues during ankle motion. The combination of bony enlargement and repetitive friction can cause significant pain, especially in active individuals or those wearing rigid-backed shoes.

Achilles tendon rupture

A complete or partial rupture of the Achilles tendon typically occurs after a sudden, forceful push-off or landing, often with a audible “pop” and immediate inability to calf-rise or walk normally. Pain may be severe initially but can become less intense as the tendon heals in a non-functional position, leading to persistent weakness and gait abnormality.

Medial, lateral, and neural causes

Tarsal tunnel syndrome and nerve compression

Tarsal tunnel syndrome results from compression of the posterior tibial nerve as it passes through the tarsal tunnel on the medial aspect of the foot, producing burning pain, tingling, or numbness in the heel and arch. Tenderness over the tunnel and a positive Tinel’s sign support the diagnosis. Baxter’s nerve compression, involving the first branch of the lateral plantar nerve, can mimic plantar fasciitis with medial plantar heel pain and is often under-recognized in runners. Peripheral neuropathy, particularly in diabetes, can also produce diffuse or burning heel pain, often with altered sensation and decreased protective reflexes.

Referred pain from lumbar radiculopathy

Pain on the lateral aspect of the foot and heel may be referred from an L5–S1 disc herniation compressing the S1 nerve root, leading to radicular symptoms that include pain, hypoesthesia, and sometimes weakness in the hamstring and calf muscles. In such cases, heel pain is part of a broader pattern of neuropathic symptoms rather than a local foot pathology.

Systemic and inflammatory conditions

A range of systemic diseases can present with heel pain. Rheumatoid arthritis, psoriatic arthritis, reactive arthritis, and ankylosing spondylitis may cause inflammatory pain in the Achilles tendon insertion, plantar fascia, or surrounding joints, often with morning stiffness and bilateral involvement. Paget’s disease of bone, osteomyelitis, and bone tumors are less common but important considerations, particularly when pain is persistent, progressive, and not clearly related to mechanical loading. Plantar warts can cause focal inferior heel pain, especially when located under the calcaneal area, and are distinguished by their characteristic surface appearance and tenderness with lateral compression.

Biomechanical and lifestyle contributors

Many causes of heel pain are strongly influenced by biomechanics and lifestyle. Abnormal walking patterns, such as overpronation or excessive supination, alter load distribution across the plantar fascia, Achilles tendon, and calcaneus, predisposing to overload injuries. Obesity increases ground reaction forces and tensile stress on the plantar fascia and fat pad, accelerating wear and tear. Ill-fitting shoes, particularly those with poor arch support, inadequate cushioning, or excessively rigid heel counters, fail to attenuate shock and can exacerbate local pathology. Activities involving repetitive jumping, running, or prolonged standing on hard surfaces are frequent precipitants of both plantar fasciitis and Achilles tendinopathy.

In children, Sever’s disease (calcaneal apophysitis) is a common cause of heel pain, resulting from stress on the growth plate of the calcaneus during periods of rapid growth and high activity levels. This condition is typically self-limiting but requires activity modification and appropriate footwear to prevent chronicity.[

Heel pain arises from a diverse set of causes, but the majority are mechanical in nature, involving the plantar fascia, Achilles tendon, calcaneal bone, or surrounding soft tissues. Plantar fasciitis and Achilles tendinopathy dominate the clinical picture, while stress fractures, fat pad atrophy, nerve compressions, and systemic inflammatory conditions represent important secondary categories. Understanding the anatomical location of pain, associated symptoms, and contributing biomechanical and lifestyle factors is essential for accurate diagnosis and targeted management. In a podiatric context, this knowledge supports both clinical assessment and the development of individualized treatment strategies, including footwear modification, orthotic prescription, gait retraining, and, where necessary, advanced imaging or referral.

Pain on the top of the foot is a common complaint that can affect athletes, active adults, and people who simply spend long hours on their feet. Although the symptom may seem minor at first, it can significantly interfere with walking, running, and everyday activities. The top of the foot contains tendons, bones, joints, ligaments, and nerves packed into a small area, so pain there can arise from many different structures. Understanding the likely cause is important because treatment depends on whether the problem is mechanical, inflammatory, traumatic, or neurological.

One of the most frequent causes of pain on the top of the foot is overuse. Activities such as running, jumping, kicking, and repeated walking can overload the extensor tendons that run along the top of the foot, leading to extensor tendinitis. This condition is often associated with tight or poorly fitting shoes, especially footwear that compresses the dorsal aspect of the foot or laces too tightly across the midfoot. The result is pain that may worsen with activity and improve with rest. In many cases, people notice tenderness when pressing on the top of the foot, swelling, or discomfort when pulling the toes upward.

Stress fractures are another important cause, particularly in physically active individuals. A stress fracture is a small crack in a bone caused by repeated loading rather than a single major injury. In the foot, the metatarsals and midfoot bones are common sites of injury, and the pain often begins gradually before becoming more constant. Swelling and pain with weight-bearing are typical, and the discomfort may become sharp during walking or running. Because stress fractures can worsen if ignored, persistent pain on the top of the foot after increased training or impact activity should be assessed carefully.

Direct trauma can also cause dorsal foot pain. Dropping an object on the foot, stubbing it forcefully, or twisting the foot can injure soft tissues, ligaments, or bone. Sprains and strains may produce bruising, swelling, and reduced movement, while fractures can cause more severe pain and difficulty bearing weight. The presence of marked swelling, bruising, or an inability to walk normally increases concern for a more serious injury. In these cases, the pain is often abrupt rather than gradual, which helps distinguish trauma from overuse problems.

Joint disease is another possible explanation. Osteoarthritis and rheumatoid arthritis can affect the joints of the foot, including the metatarsophalangeal joints and the midfoot, leading to stiffness, swelling, and pain on the top of the foot. In osteoarthritis, bone spurs can develop and may irritate the surrounding tissues. These problems are often worse in the morning or after periods of rest, and may become more noticeable during activities that require bending of the foot. Arthritis-related pain tends to be chronic or recurring rather than isolated to one event.

Gout is a less common but very important cause. It is caused by uric acid crystal deposition in a joint, producing sudden pain, redness, warmth, and swelling. Although gout most often affects the big toe joint, it can also involve other parts of the foot, including the top of the foot. The pain is usually intense and may be so severe that even light touch is uncomfortable. When the skin is hot and swollen and the pain comes on rapidly, gout should be considered alongside infection and other inflammatory conditions.

Nerve-related causes can also produce pain on the top of the foot. Compression or irritation of nerves may cause burning, tingling, numbness, or radiating pain. Sciatica or peroneal nerve dysfunction can refer symptoms into the dorsum of the foot, and dorsal compression syndrome may occur when local structures pinch nerves on the top of the foot. These symptoms are often different from bone or tendon pain because they may be accompanied by altered sensation, weakness, or pain extending up the leg. In patients with diabetes, peripheral neuropathy may also contribute to pain, tingling, or numbness in the feet.

A careful history and examination are essential in working out the cause. Key questions include when the pain started, whether it followed a specific injury, what activities worsen it, whether shoes contribute, and whether there are associated symptoms such as swelling, bruising, redness, numbness, or stiffness. For example, pain that developed after a sudden increase in running mileage suggests overuse or stress fracture, while pain with red, hot swelling points more toward gout or inflammation. Physical examination may reveal focal tenderness, pain with tendon movement, joint stiffness, or sensory changes. Imaging such as X-ray, ultrasound, or MRI may be needed when fracture or a more complex injury is suspected

Treatment depends on the underlying cause, but several general measures are commonly helpful. Resting the foot, reducing aggravating activity, icing the area, and elevating the foot can reduce pain and swelling. Supportive footwear is important, especially shoes with adequate width, cushioning, and a low heel that do not compress the top of the foot. Over-the-counter pain relief may help in some cases, and gentle stretching or mobility work can be useful when tendons are involved. For biomechanical issues, inserts or orthotics may help redistribute pressure and improve support. If a fracture is present, immobilisation with a boot or cast may be necessary.

Knowing when to seek medical help is equally important. Persistent pain, worsening symptoms, significant swelling, bruising, difficulty walking, or numbness should not be ignored. Pain that does not improve after a period of home treatment, or pain that follows trauma, deserves professional assessment. Severe or sudden pain with redness and heat may require urgent evaluation to rule out gout, infection, or fracture. Early diagnosis generally leads to faster recovery and lowers the risk of chronic foot problems.

In summary, pain on the top of the foot is a symptom with many possible causes, ranging from simple shoe irritation to stress fracture, arthritis, gout, or nerve entrapment. The pattern of onset, associated symptoms, and response to activity help narrow the diagnosis. Most cases improve with rest, proper footwear, and targeted treatment, but ongoing or severe pain should be assessed to prevent longer-term problems.