Expert Patient Guide · London & North London

Stress Fractures of the Foot & Ankle

A comprehensive patient guide by Mr Matthew Welck, Consultant Orthopaedic Foot & Ankle Surgeon, Royal National Orthopaedic Hospital (RNOH) Stanmore and UCL — London, UK.

Overview

Understanding Stress Fractures of the Foot & Ankle

At a Glance

Condition
Tiny (hairline) cracks in bone caused by repeated overload — among the most common overuse injuries in the foot and ankle.

Who Is Affected
Runners, dancers, jumpers, footballers and military recruits; more common in women and in those with low bone density.

Most Common Sites
Metatarsals (forefoot) and tibia (shin), followed by the navicular, calcaneus (heel) and fibula.

Diagnosis
MRI is the gold-standard test. X-rays are often normal in the early weeks; CT and bone scans are also used.

High-Risk Fractures
Navicular, base of the 5th metatarsal (Jones), anterior tibia, medial malleolus and hallux sesamoids — these are prone to non-union.

Non-Surgical Care
Rest and activity modification, a walking boot or cast, load management and, in selected cases, shockwave therapy.

Surgical Options
Screw or intramedullary fixation for high-risk, displaced or non-healing fractures, and for athletes needing a faster return to sport.

Specialist
Mr Matthew Welck — Consultant Foot & Ankle Surgeon, RNOH Stanmore & UCL, London (matthewwelck.com).

A stress fracture is a tiny crack in a bone often not caused by a single injury, but by repeated, submaximal loading over time. With each cycle of running, jumping or marching, microscopic damage accumulates faster than the bone can repair it. Eventually the bone fails structurally — first as a stress reaction, then as a true stress fracture.

Most stress fractures occur in the lower limb. Within the foot and ankle, they are seen most often in the metatarsals and the tibia (shin), but they can also affect the navicular, calcaneus (heel), fibula, talus, medial malleolus, sesamoids and other tarsal bones. Because these injuries are frequently missed or mistaken for soft-tissue problems, expert assessment by a Consultant Foot & Ankle Surgeon — such as Mr Matthew Welck in London and North London — gives the earliest diagnosis and the widest range of treatment options.

Who Gets Stress Fractures?

Repetitive impact sport or training — running, dancing, jumping, court and field sports, and military marching.
Low bone mineral density — reducing the bone’s ability to withstand repeated load.
Female sex and the athlete triad — the combination of repeated stress, low bone density and restricted dietary energy carries a stress-fracture risk as high as 30–50% in some women.
Rapid change in training — a sudden increase in mileage, intensity, surface or footwear.
Foot shape and biomechanics — a high-arched (cavus) or rolled-in (pronated) foot can concentrate load on specific bones.

Why Early Diagnosis Matters Late diagnosis can mean prolonged pain and time out of sport, and some sites are especially prone to non-union (failure to heal) — notably the hallux sesamoids, the mid-shaft and anterior tibia, the base of the 5th metatarsal and the tarsal navicular. Early recognition often allows simple, non-surgical treatment; delay can turn a straightforward problem into one that needs surgery.

Metatarsal Stress Fracture

Metatarsal Stress Fractures

What Is It?
A metatarsal stress fracture is a hairline crack in one of the long bones of the forefoot. The 2nd and 3rd metatarsals are affected most often; fractures of the 4th and 5th metatarsals are less common but slower to heal. A stress fracture at the base of the 5th metatarsal is commonly known as a Jones fracture.

How Common Is It?
Metatarsal stress fractures are the most common stress fracture in the foot, accounting for around 38% of all lower-limb stress fractures. Classic examples include the “march fracture” in military recruits and the 2nd metatarsal fracture in ballet dancers.

What Causes It?

Repetitive forefoot loading from running, marching or dancing.
In ballet dancers, repeated extreme pointing of the foot (plantarflexion) through the midfoot.
A long or prominent 2nd metatarsal, a naturally pronated foot, or a stiff ankle that shifts load onto the forefoot.
For the 5th metatarsal base: a high-arched cavovarus foot, a wide splay between the 4th and 5th metatarsals, and a poor “watershed” blood supply that predisposes to non-union.

What Are the Symptoms?

Gradual-onset forefoot pain that worsens with activity and eases with rest.
Localised tenderness over the affected bone, sometimes with mild swelling.
For the 5th metatarsal: pain along the outer border of the foot, tender at the base and worse when the foot is turned inward.

What Investigations Might You Need?

X-rays — useful but often normal (falsely negative) in the first few weeks.
MRI — the gold-standard test, showing the fracture and surrounding bone reaction early.
For 5th metatarsal base fractures, the Torg classification (grades I–III) helps predict healing and guide treatment.

Non-Surgical Treatment

Rest and activity modification, often with a stiff-soled shoe or walking boot.
2nd metatarsal fractures usually settle with rest or cast immobilisation; shockwave therapy is sometimes added.
A low-grade (Torg I) 5th metatarsal base fracture may be treated with a trial of non-weightbearing cast immobilisation.

Surgical Options

For athletes prioritising a rapid return to sport — or for higher-grade (Torg II–III) or non-healing 5th metatarsal base fractures — fixation with an intramedullary or lag screw can give reliable healing and a faster return to sport than non-operative care.

Tibial Stress Fracture

Tibial (Shin) Stress Fractures

What Is It?
A tibial stress fracture is a crack in the tibia (shin bone), the main weight-bearing bone of the lower leg. It is one of the most common stress fractures overall and a frequent cause of persistent shin pain in runners.

How Common Is It?
The tibia is often cited as the most common site of stress fracture in runners and military recruits. About 57% occur in the lower third of the shin, 30% in the middle third, and the remainder higher up.

What Causes It?

Repetitive impact from running, jumping or marching — stress magnitude matters more than sheer frequency.
Gait factors such as increased hip adduction, heel eversion and rotational torque through the shin.
In children and adolescents, a tibial stress fracture can closely mimic a bone tumour, so careful assessment is essential.

What Are the Symptoms?

Exertional shin pain that builds during activity and settles with rest.
Localised tenderness over the front or inner edge of the shin.
A fracture of the front (anterior) cortex — the so-called “dreaded black line” — is a higher-risk pattern.

What Investigations Might You Need?

X-rays, MRI, CT and occasionally bone scans.
Imaging both confirms the fracture and, in younger patients, helps distinguish it from a bone tumour or infection.

Non-Surgical Treatment

Rest from impact — sometimes for as long as 4–6 months in stubborn cases — followed by a graded return to loading.
Shockwave therapy may help resistant fractures.

Surgical Options

Chronic or recurrent anterior tibial stress fractures in athletes may be treated with intramedullary nailing, which shows good healing and a faster return to sport than continued non-operative management.

Calcaneal Stress Fracture

Calcaneal (Heel) Stress Fractures

What Is It?
A calcaneal stress fracture is a crack in the heel bone (calcaneus). Because it causes heel pain, it is often mistaken for plantar fasciitis or a heel spur — one reason expert assessment is valuable.

How Common Is It?
Heel stress fractures are relatively common. In one large military study they were the second most common foot stress fracture in men (after the metatarsals) and the most common in women. The back part of the heel is affected most often.

What Causes It?

Repetitive heel loading from running or marching.
Low bone density, and occasionally following hip or knee replacement surgery.
Anatomical factors such as a long anterior process of the calcaneus or a calcaneonavicular coalition.

What Are the Symptoms?

Exercise-induced heel pain.
Tenderness when the heel is squeezed from both sides (the “squeeze test”).

What Investigations Might You Need?

X-rays are often normal.
MRI is the most helpful test for confirming the diagnosis.

Non-Surgical Treatment

Most heel stress fractures settle well with activity modification and a period of reduced loading.

Surgical Options

Surgery is rarely required for calcaneal stress fractures.

Navicular Stress Fracture

Navicular Stress Fractures

What Is It?
The navicular is a keystone bone of the midfoot arch. A navicular stress fracture is considered a high-risk injury because the bone has a relatively poor central blood supply and is prone to delayed healing or non-union.

How Common Is It?
Navicular stress fractures are under-recognised and frequently overlooked. They are seen particularly in sprinters and jumping athletes. A delay of around four months between symptom onset and diagnosis is common.

What Causes It?

Repetitive push-off compression forces from sprinting and jumping.
A high-arched (cavus) foot, metatarsus adductus, limited ankle or subtalar movement, or a short first metatarsal.
A central “watershed” zone of reduced blood supply within the bone.

What Are the Symptoms?

Poorly localised, aching midfoot pain that worsens with activity and improves with rest.
Tenderness over the top of the navicular (the “N spot”).

What Investigations Might You Need?

X-rays are unreliable — around two-thirds are falsely normal — so CT or MRI is required.
The Saxena classification (types I–III, with modifiers) grades the fracture and guides treatment.

Non-Surgical Treatment

The gold standard is a period of non-weightbearing cast immobilisation for at least six weeks, which achieves very high healing rates.
Partial weightbearing is linked to a higher risk of non-union and is best avoided.

Surgical Options

For displaced fractures, higher-grade injuries (type III and some type II with adverse features), or when conservative treatment fails, open reduction and internal fixation with screws is used to restore the arch and stabilise the bone. Surgery does not necessarily speed the return to sport, but is essential when non-operative care has not worked.

Fibular Stress Fracture

Fibular Stress Fractures

What Is It?
The fibula is the slender outer bone of the lower leg and carries relatively little body weight. A fibular stress fracture is therefore less common than a tibial one and usually more straightforward to treat.

How Common Is It?
Fibular stress fractures account for around 6.6% of lower-limb stress fractures. In military recruits they most often occur in the upper third of the bone.

What Causes It?

Repetitive running and jumping, as with tibial stress fractures.
Less commonly, a tibiofibular synostosis (a bony bridge between the two leg bones) or repeated heavy lifting.

What Are the Symptoms?

An ache over the outer part of the lower leg that comes on with activity.

What Investigations Might You Need?

MRI is helpful both to confirm the fracture and to exclude a bone tumour or infection, which it can mimic early on.

Non-Surgical Treatment

Rest, activity modification and simple pain relief — fibular stress fractures almost always heal without surgery.

Surgical Options

Surgery is rarely required.

Talar Stress Fracture

Talar Stress Fractures

What Is It?
The talus is the bone that links the leg to the foot and forms the lower half of the ankle joint. A talar stress fracture is rare, and the head of the talus is the part most often affected.

How Common Is It?
Talar stress fractures are uncommon — only around 4.4 cases per 10,000 person-years, even among military recruits — so they are easily missed. They often occur alongside stress fractures of neighbouring bones such as the calcaneus or navicular.

What Causes It?

Repetitive high-impact loading of the ankle and hindfoot.
The intense, sustained training that causes a talar stress fracture frequently overloads more vulnerable tarsal bones at the same time.

What Are the Symptoms?

Exercise-induced ankle or heel pain.

What Investigations Might You Need?

The fracture is often invisible on X-ray, so MRI or CT is usually needed to confirm it.

Non-Surgical Treatment

Around six weeks of non-weightbearing immobilisation is commonly successful.

Surgical Options

There is no firm consensus on surgery; it is reserved for selected cases. Because untreated injuries around the ankle can accelerate ankle arthritis over time — occasionally leading to fusion or total ankle replacement — early specialist assessment is important.

Medial Malleolar Stress Fracture

Medial Malleolar Stress Fractures

What Is It?
The medial malleolus is the bony prominence on the inner side of the ankle, formed by the lower end of the tibia. A stress fracture here is rare and carries a high risk of non-union, so it is taken seriously.

How Common Is It?
Medial malleolar stress fractures are uncommon and are seen mainly in running and jumping athletes.

What Causes It?

Repetitive loading of the inner ankle.
Anteromedial ankle impingement (bony crowding at the front and inner ankle) may contribute in some patients.

What Are the Symptoms?

Inner ankle pain and tenderness that comes on with activity.

What Investigations Might You Need?

MRI or CT is used to confirm the fracture, as X-rays may not show it early.

Non-Surgical Treatment

Cast immobilisation and a period of non-weightbearing can be used in the first instance.

Surgical Options

Screw fixation is often preferred because it is associated with more rapid healing and a quicker return to sport; where impingement is present, this may be addressed at the same time.

Sesamoid Stress Fracture

Sesamoid Stress Fractures

What Is It?
The hallux sesamoids are two small bones beneath the big-toe joint that reduce pressure on the joint and protect its tendons. A sesamoid stress fracture is uncommon but has a high tendency to non-union.

How Common Is It?
Sesamoid stress fractures are seen in runners, dancers and athletes in sports that heavily load the forefoot.

What Causes It?

Repetitive loading of the ball of the foot with the big toe bent upward (dorsiflexed).

What Are the Symptoms?

Activity-related pain under the big-toe joint, characteristically worst on forced upward bending of the big toe and relieved by rest.

What Investigations Might You Need?

MRI or a bone scan confirms the diagnosis and helps distinguish a fracture from a naturally two-part (bipartite) sesamoid.

Non-Surgical Treatment

Immobilisation and offloading of the forefoot are tried first.

Surgical Options

For a painful non-union, options are internal fixation or removal of the affected sesamoid (sesamoidectomy). Sesamoidectomy allows a faster return to sport but carries a risk of gradual big-toe deformity (hallux valgus or varus), so the decision is individualised.

Cuneiform Stress Fracture

Cuneiform Stress Fractures

What Is It?
The cuneiforms are three small wedge-shaped bones in the midfoot. A cuneiform stress fracture is very rare and typically causes midfoot and heel pain.

How Common Is It?
Only a small number of cases have been reported. Sprinters are at particular risk, as the middle cuneiform is heavily loaded during the propulsive phase of running.

What Causes It?

A change in gait, a larger body habitus, or new or excessive training.
There is also an association with plantar fasciitis.

What Are the Symptoms?

Midfoot and heel pain that comes on with activity.

What Investigations Might You Need?

X-rays are often normal, so MRI or CT is used to make the diagnosis.

Non-Surgical Treatment

Weightbearing immobilisation in a fracture boot, followed by a gradual return to sport, is usually successful.

Surgical Options

Surgery is rarely required.

Cuboid Stress Fracture

Cuboid Stress Fractures

What Is It?
The cuboid is a bone on the outer side of the midfoot. A cuboid stress fracture is very rare and, because it is easily missed, is probably under-diagnosed.

How Common Is It?
Very few cases have been reported in the medical literature, partly because the fracture is often invisible on X-ray.

What Causes It?

Repetitive loading of the outer midfoot, with the usual stress-fracture risk factors.

What Are the Symptoms?

Pain over the outer part of the midfoot that comes on with activity.

What Investigations Might You Need?

X-rays are frequently normal; CT is the most useful test for confirming the diagnosis.

Non-Surgical Treatment

Immobilisation is usually effective and the fracture typically heals well.

Surgical Options

Surgery is rarely required.

Why Choose Mr Welck

Why Choose Mr Welck?

Mr Matthew Welck is a Consultant Orthopaedic Foot & Ankle Surgeon at the Royal National Orthopaedic Hospital (RNOH) Stanmore — the UK’s leading orthopaedic hospital — and Honorary Associate Clinical Professor at UCL. His practice is dedicated exclusively to the foot and ankle, making him a natural choice for patients searching for one of the best foot and ankle surgeons in London and North London.

He has a particular interest in sports foot and ankle injuries, including stress fractures, and in complex reconstruction, total ankle replacement and joint-preserving surgery. He has authored over 50 peer-reviewed publications, holds double fellowship training with international experience, and is a pioneer of weight-bearing CT and 3D-printed patient-specific instrumentation for complex cases.

What Sets His Stress-Fracture Care Apart

Fast, accurate diagnosis — rapid access to MRI and weight-bearing CT to catch stress fractures that X-rays miss.
Sports-focused rehabilitation — treatment planned around a safe, structured return to running and sport.
Expertise in high-risk fractures — navicular, Jones (5th metatarsal), anterior tibia, medial malleolus and sesamoid injuries that need specialist judgement.
The full range of options — from load management and bracing through to modern surgical fixation, and, where earlier injury has led to arthritis, ankle-preserving surgery and total ankle replacement.
Convenient access — seen across North and Central London, with NHS care at the RNOH Stanmore.

Every patient is assessed individually and a customised, bespoke treatment plan is agreed together. Visit matthewwelck.com to learn more.

Common Questions

Frequently Asked Questions

How long does a stress fracture take to heal?

Most straightforward stress fractures heal in around six to eight weeks with the right rest and load management. High-risk sites — such as the navicular, Jones fracture and anterior tibia — can take considerably longer and are watched more closely.

Can I keep training through it?

No. Continuing to load a stress fracture risks turning it into a complete break or a non-union that fails to heal. The safest and quickest route back to sport is early diagnosis followed by a structured, supervised return.

Which stress fractures are considered high-risk?

The navicular, the base of the 5th metatarsal (Jones fracture), the anterior tibia, the medial malleolus and the hallux sesamoids. These are more likely to heal slowly or not at all, and may need surgery.

Will I need surgery?

Most stress fractures heal without an operation. Surgery is considered for high-risk, displaced or non-healing fractures, and for athletes who need the fastest reliable return to sport.

How are stress fractures diagnosed?

MRI is the gold-standard test because it detects stress fractures early, when X-rays are often still normal. CT and bone scans are also used in specific situations.

Can stress fractures be prevented?

Often, yes. Sensible increases in training load, good bone health, appropriate footwear and correcting biomechanical or energy-availability problems all reduce the risk. Specialist assessment can identify and address your individual risk factors.

Where can I see Mr Matthew Welck for a stress fracture in London?

Mr Welck consults across North and Central London. NHS patients are seen at the Royal National Orthopaedic Hospital (RNOH) Stanmore. Private appointments can be booked by phone or email via matthewwelck.com.

Get in Touch

Book a Consultation

If you have persistent foot, ankle or shin pain that worsens with activity — particularly if you are an active person, runner or athlete — a stress fracture should be considered and excluded. Early specialist assessment gives you the widest range of treatment options and the best long-term result.

Book a private or NHS consultation with Mr Matthew Welck, Consultant Foot & Ankle Surgeon.

Email: secretary@matthewwelck.com
Call: 07547 395 270
Website: matthewwelck.com

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This guide is provided for general patient education and does not replace individual medical assessment. Diagnosis and treatment of a stress fracture should always be based on personal examination and appropriate imaging by a qualified specialist.

Written by: Matthew Welck | Consultant Orthopaedic Foot & Ankle Surgeon London — last updated 9 July 2026