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Plantar Fasciitis

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Plantar Fasciitis

What Is Plantar Fasciitis?

Before describing the condition, you may wish to read about the normal anatomy of the plantar fascia here.

The plantar fascia is a thin band on the sole that has a very important role in the foot, maintaining the shape and arch of the foot.

The suffix “itis” is used to describe inflammation of a part of the body, for example gastritis, which is inflammation of the stomach. The term plantar fasciitis therefore means inflammation of the plantar fascia.

However the term plantar fasciitis is strictly incorrect. Research has shown that there is actually little, if any inflammation. That is why NSAIDs (such as ibuprofen) do not work except for patients who are in the early stages of the disease (when there is a little inflammation present). In fact, plantar fasciitis is a degenerative condition and for that reason it is more appropriate to call it plantar fasciopathy. By degeneration we mean “wear and tear”. The body’s normal healing response is impaired resulting in pain. Instead of a thin strong band of tissue the fascia becomes thickened and has weaker properties.

Patients often come to The London Foot and Ankle Clinic having been told that they have a heel spur, which is the cause of their symptoms. This was in the past thought to be the cause of plantar fasciitis but has now been disproven. A large proportion of the population has a “heel spur” and it is now seen as an incidental finding and nothing else.

The plantar fascia (white arrow) Achilles tendon (red arrow) and continuous fibres (yellow arrow)

The plantar fascia (white arrow) Achilles tendon (red arrow) and continuous fibres (yellow arrow)

MRI scans of the hindfoot showing a normal plantar fascia and an abnormal plantar fascia

MRI of the hindfoot demonstrating A – normal plantar fascia and B – abnormal plantar fascia consistent with plantar fasciitis

What Can Cause It?

Risk factors for plantar fasciitis include:

  • Obesity – puts more strain on the plantar fascia
  • Prolonged standing – can damage the plantar fascia
  • Wearing unsupportive footwear on hard surfaces
  • Increasing age – is most common between the ages of 40 and 60
  • Exercise – certain sports and activities place a lot of stress on the heel such as running and dance aerobics
  • Tight calf muscles – additional strain and load on the plantar fascia
  • Abnormal foot biomechanics – very flat feet or feet with very high arches can predispose to plantar fasciitis

What Are The Symptoms?

Pain is the most common symptom of plantar fasciitis.

The characteristics of plantar fasciitis are –

  • Pain worse first thing in the morning (getting out of bed)
  • Pain worse after a period of rest or sitting and then getting up (post static dyskineasia)
  • Pain that eases with walking initially
  • Pain that gets worse the longer you are on your feet
  • Pain that initially is intermittent but then becomes chronic
  • Pain on the plantar medial aspect of the foot (inside of the heel)
  • Pain that is aching, sharp, stabbing, burning or throbbing in nature
  • Not uncommon to have pain in both feet
  • May have history of calf tightness or cramps
  • May have history of Achilles tendon pain

On clinical examination patients complain of pain at a specific point on the plantar aspect of the heel. Patients will often have tight calf muscles.

The history and examination will aim to rule out other pathology that can cause similar symptoms. Other conditions that can cause plantar heel pain include:

  • Disc prolapse and sciatica
  • Tarsal tunnel syndrome
  • Calcaneal stress fracture
  • Calcaneal stress lesion (reaction within the bone, but no fracture)
  • Nerve entrapment i.e. lateral calcaneal nerve (Baxters nerve entrapment)
  • Subtalar joint osteoarthritis
  • Fat pad atrophy
  • Infection
  • Systemic conditions such as i.e. rheumatoid arthritis, Reiters syndrome, Ankylosing spondylitis, gout
  • Overload heel pain syndrome
  • Ruptured plantar fascia
  • Soft tissue mass (tumour)

What Investigations May Be Required?

The diagnosis is based on history and clinical examination in the majority of patients with “classic” symptoms and examination findings as described above.


Radiographs

Radiographs are rarely requested unless there are atypical symptoms and other pathology needs to be ruled out.


Ultrasound

An ultrasound is a quick and pain free investigation that can confirm the diagnosis.


MRI

MRI is particularly useful in making the diagnosis and ruling out other conditions such as a calcaneal stress fracture. It is requested if there are atypical symptoms and examination findings.

MRI is particularly useful in assessing:

  • Thickening of plantar fascia
  • Evidence of plantar fascia rupture or tear
  • Cartilage damage (arthritis)
  • Reactive bone changes (stress response)
  • Synovitis (inflammation and fluid in the joint)
  • Inflammation and oedema in tissues
  • Inflammation of bursa (bursitis)
  • Other pathology

Can The Problem Get Worse?

Yes the pain can become chronic in nature and more severe however this is uncommon as the condition tends to be self limiting and the majority of people get better.

Rarely the plantar fascia can rupture (partial or complete).

To ease the pain you may alter your gait pattern and therefore walk in such a way that puts abnormal pressure on other joints. As a result you may develop ankle, knee, hip or back problems.

Non-Operative Treatment Options

Non-operative management aims at relieving pain ad allowing return to normal function.

It should always be the first line of treatment. Options include:

Activity modification

A period of rest from sports and exercise that bring on symptoms. Avoiding high impact activities and sports. Reducing the amount of time standing and walking particularly on hard surfaces.


Footwear

Wearing shoes with cushioned heels.


Orthotics

Gel heel pads to cushion the heel and act as an additional shock absorber.

Orthotics with an arch support to help spread the load across the whole foot.


Splints

A night splint holds the plantar fascia and calf muscles in a lengthened position overnight and facilitates stretching.


Immobilisation

Immobilisation in a walking cast or boot for 4 weeks is sometimes indicated and may help alleviate symptoms.


Non steroidal anti-inflammatories

The use of non-steroidal anti-inflammatory drugs (NSAIDs) can decrease discomfort from plantar fasciitis in the very early stages of the condition when some inflammation is present. However usually in most patients there is no inflammation and therefore NSAIDs tend not to work.


Physiotherapy

Calf muscle stretches and plantar fascia stretches help reduce the forces going across the plantar fascia.

Intrinsic foot muscle strengthening exercise, lower limb muscle conditioning and strengthening exercise can also help ease symptoms.


Time

This is a self limiting condition in the majority of patients. It can take up to a year or more for symptoms to settle.


Extracorporeal shockwave therapy (ESWT)

Relatively new technique although evidence is coming forwards to show that it is effective in select cases. To qualify for this treatment patients should have symptoms for greater than 6 months. Patients with symptoms of less duration may find their symptoms are worse after treatment.

Shockwaves are used to create microtears in the plantar fascia, which in turn generates an inflammatory (healing) response. Three courses of ESWT are required spaced 1-2 weeks apart. Patients should avoid taking NSAIDs during treatment. The procedure is quite painful. In the majority of patients the pain is limited to the actual duration of treatment, which is about 5 minutes. We inform you of this only to forewarn rather than dissuade you of this treatment.

The complications of this procedure include bruising, swelling, pain, numbness or tingling and very rarely plantar fascia rupture. Treatment does not guarantee relief of symptoms.

Injections For Plantar Fasciitis

Injections are rarely carried out due to poor results and low efficacy. May work for a short period in some patients but generally not very effective and carries significant risk of complications such as plantar fascia rupture and fat pad atrophy (the natural cushion of the heel wastes away).


Image guided steroid injection

In very few select cases an image guided local anaesthetic and steroid injection at the plantar fascia origin is performed. This is carried out under a short general anaesthetic and under x-ray control.

Steroids act by reducing inflammation. As most chronic cases of plantar fasciitis have no inflammation these injections tend not to work.


Dry needling

Multiple small needle punctures are made in the symptomatic area under ultrasound guidance. This causes bleeding at the site of the plantar fasciopathy, and like ESWT is thought to simulate an inflammatory healing reaction. Results are unpredictable but complications minimal.

Operative Treatment Options

Surgical management is reserved for patients who have failed to respond to non operative treatment. Surgery is very rarely necessary for the treatment of plantar fasciitis.

Patients should understand that the decision to undergo surgery should not be taken lightly.

Any intervention is considered in a step wise manner, with the least invasive procedure carried out first.


Proximal medial gastrocnemius release

In patients who have failed conservative management and have tight calf muscles a proximal medial gastrocnemius release can be effective in easing symptoms in up to 80% of patients.

This operation involves making a small 2cm incision at the back of the knee and releasing the medial head of the gastrocnemius muscle. It lengthens the calf muscle and relieves the tension across the Achilles tendon and plantar fascia.

The operation is carried out under local anaesthetic and a short sedation. It is a day case procedure so you can expect to go home the same day. As the wound itself is small and the operation involves cutting fascia and not muscle most patients are able to walk out of hospital without crutches and are able to drive within 4 to 5 days. Calf stretching exercises are recommended for 2 weeks post surgery to help maintain the increased length obtained by surgery.

Expect to feel the benefit of the operation 6 to 8 weeks post surgery.

A typical wound following a proximal medal gastrocnemius release

A typical wound following a proximal medal gastrocnemius release

 


Plantar fascia release

Plantar fascia releases are rarely performed at The London Foot and Ankle clinic due to potential complications such as plantar fascia rupture, loss of foot arch and chronic pain.

Potential Complications

It should be borne in mind that complications can result from a condition with or without surgery.


Potential complications of non-operative treatment include:

  • Worsening pain
  • Plantar fascia rupture
  • Abnormal gait – altered kinetic chain with resulting problems in ankle, knee, hip or back

Complications can occur as with any type of surgery. Please see Complications for more detailed explanation of post surgical complications.

Potential general complications of any operative treatment include:

  • Risks and complications of anaesthesia
  • Bleeding
  • Infection (superficial and deep)
  • Blood clots
  • Need for further surgery
  • Complex regional pain syndrome
  • Wound healing problems
  • Painful scar
  • Persistent pain

Potential specific complications of proximal medial gastrocnemius release include:

  • Saphenous nerve injury

Note – these complications are not exhaustive and are meant as a guide

Post Operative Period & Recovery

Please read the information regarding what to expect post surgery on this website.

Remember that below is a guide to recovery and that everyone heals at different rates and some people do take longer. Use this information to help you understand your condition, possible treatment and recovery. The timeframes given below are a minimum, it is important that you appreciate this when considering surgery as your healing and recovery may take longer.


Immediate post operative period

Following a proximal medial gastrocnemius release –

You will have a small waterproof dressing applied to the back of the knee. It is advised not to remove this until seen at clinic by Mr Malik at the 2 week follow up.

For 2 weeks following surgery it is recommended that you keep the area dry. You may wish to get a Limbo bag which will stop the wound getting wet.

Most patients are able to walk comfortably without any aids after the operation. If both legs have been operated on then crutches maybe necessary. A physiotherapist will guide you before your discharge from hospital. Please ensure someone is able to drive you home after the operation. It is important that you commence calf stretching exercises as soon as possible after the operation. Activities can be gradually increased as pain allows.


Two weeks post operatively

You will be reviewed at the clinic and your dressings removed. Your wound will be checked and if completely healed you will be given advice regarding soft tissue massage and scar desensitisation. Scar desensitisation should start as soon as the wound has completely healed. You can do this by massaging cream (E45 for example) into the scar and around the wound area. You may shower and get the area wet only if the wound has completely healed and is dry.

You may be referred at this stage for physiotherapy for early rehabilitation – calf and  plantar fascial stretches and intrinsic foot muscle strengthening exercises.


Six weeks post operatively

At this stage if your healing is progressing satisfactorily swelling and bruising should have subsided considerably. You should start noticing an improvement in pain levels.


Three months post operatively

Final clinical examination. Discharge if satisfactory.

FAQs

How long does the operation take?

This is probably the most common question asked of surgeons. Total operation time is different from the actual total surgical time. For example a flight involves not just the flying time, but the time checking in, going through security and boarding the plane for example.

The time given below is only a guide to the actual surgical time.

For a proximal medial gastrocnemius release 

15 minutes


When can I drive?

Following a proximal medial gastrocnemius release – 

Most patients are able to drive within a week or two. Please see guidance below.

Please see guidance above and information here. Ultimately it is the responsibility of the patient to decide if they are safe to drive. A good way of knowing is if you can stamp your right foot heavily on the ground to mimic an emergency brake. If you have any hesitation or pain then it should suggest you are not safe to drive. Remember prolonged driving involves keeping your feet in a dependant position. This will worsen the post operative swelling.


When can I return to work?

Following a proximal medial gastrocnemius release – 

Most patients are able to return to work within 3 to 5 days.


What should the final outcome be?

Following a proximal medial gastrocnemius release – 

Excellent pain relief and return to sports by 3 to 6 months in approximately 80% of patients.

 

Mucoid Cysts

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Mucoid Cysts

What Is A Mucoid Cyst?

A mucoid cyst is a benign lump that occurs in the distal joints around fingers and toes.

A mucoid cyst in the 2nd toe arising from the DIP joint

A mucoid cyst in the 2nd toe arising from the DIP joint

What Can Cause It?

No one really knows why mucoid cysts occur, although there is an association with arthritis of the DIP joint and rarely trauma.

What Are The Symptoms?

Most people with a mucoid cyst have no symptoms.

Some people do complain of pain in the underlying DIP joint and this is due to arthritis in the joint. Patients that do present to a doctor typically do so because of frequent discharge from the cyst which almost invariably fills up again.

Rarely patients may complain of nail changes.

To summarise common symptoms include:

  • Pain
  • Discharge
  • Swelling
  • Nail changes

What Investigations May Be Required?

Investigations are rarely necessary to make diagnosis.

Radiographs may demonstrate osteophytes (bony spurs) in the DIP joint or evidence of arthritis.

Can The Problem Get Worse?

The vast majority of people with a mucoid cyst are asymptomatic. It is a condition that can get worse.

If a mucous cyst ruptures & become infected, then a septic joint may result. This is a very rare complication however.

If there is a history of increasing pain, frequent discharge, swelling or an inability to do sports you may wish to consult with Mr Malik, an orthopaedic foot & ankle surgeon for further advice.

Non-Operative Treatment Options

Non-operative management aims at relieving pain and limiting deformity progression. It is likely to be most effective in the early stages of the condition.

It should always be the first line of treatment. Options include:

Toe sleeves 

Made of silicon can be worn over the toe to protect from direct pressure and rubbing against footwear.


Footwear

The use of stiff soled shoes that do not bend and therefore protect the DIP joint. Wearing a shoe with a wide and deep toe box to minimise pressure on the cyst.


Non steroidal anti-inflammatories

The use of non-steroidal anti-inflammatory drugs (NSAIDs) can decrease discomfort from an arthritic DIP joint.


Needle aspiration

Will most likely result in recurrence and is not recommended.

Operative Treatment Options

Surgical management is reserved for patients who have failed to respond to non operative treatment.

Patients should understand that the decision to undergo surgery should not be taken lightly.

Any intervention is considered in a step wise manner, with the least invasive procedure carried out first.


Treatment options include:

  • Excision of cyst – associated with high recurrence rate and wound problems
  • Excision of osteophytes – associated with high recurrence rate
  • Fusion of DIP joint – high success rate

Our favoured option is DIP joint fusion as this reliably relieves any arthritic pain in the DIP joint and has the lowest risk of recurrence.

Potential Complications

It should be borne in mind that complications can result from a condition with or without surgery.


Potential complications of non-operative treatment include:

  • Worsening pain
  • Increasing deformity/swelling
  • Chronic wound/ulcer
  • Septic joint

Complications can occur as with any type of surgery. Please see Complications for more detailed explanation of post surgical complications.

Potential general complications of any operative treatment include:

  • Risks and complications of anaesthesia
  • Bleeding
  • Infection (superficial and deep)
  • Blood clots
  • In the case of an MIS procedure it may be necessary to proceed to open surgery if during the operation it is felt that a better outcome will be achieved using an open technique
  • Failure to fully correct deformity (particularly if longstanding deformity)
  • Need for further surgery
  • Complex regional pain syndrome

Potential specific complications of operative treatment of mucoid cyst include:

  • Painful non union of the DIP joint
  • Recurrence of the mucoid cyst
  • Malunion
    • It is not uncommon for the toe to heal in a position that may not be perfectly straight
    • Minor degrees of deformity will be mostly a cosmetic concern, which is why almost all orthopaedic foot and ankle surgeons discourage patients from having toe surgery if the underlying issue is cosmetic!
    • In the unlikely case that there is a severe malunion further surgery may be required
  • Stiffness of the MTP joint
  • Wound healing problems (particularly when correcting a chronic deformity the soft tissue can become contracted)
  • Compromise to the blood supply (particularly when correcting a chronic deformity the blood vessels can become contracted)
    • If the blood supply to the tip of the toe is lost the tissue will die and it may be necessary to amputate part, or all of the toe
    • This is a very small risk
  • Nerve injury to the toes causing numbness

Note – these complications are not exhaustive and are meant as a guide

Post Operative Period & Recovery

Please read the information regarding what to expect post surgery on this website.

Remember that below is a guide to recovery and that everyone heals at different rates and some people do take longer. Use this information to help you understand your condition, possible treatment and recovery. The timeframes given below are a minimum, it is important that you appreciate this when considering surgery as your healing and recovery may take longer.


Immediate post operative period

All surgical procedures for mucoid cyst will be undertaken as a day case.

You will have a bandage applied similar to this during the operation.

Post operative bandage of the foot

Post operative bandage of the foot

Please do not remove your bandages until you are seen by your surgeon Mr Malik at the two week post operative clinic appointment. You will also be provided with a stiff soled black post operative shoe. Please ensure you wear this whenever you are weight bearing.

Post operative stiff soled shoe

Post operative stiff soled shoe

For the first 48 hours you will be allowed to touch weight bear using two crutches. After 48hrs you can weight bear as tolerate. The physiotherapist will guide you after your operation and before your discharge from hospital with the use of crutches and mobilising.

For the first two weeks following your surgery please keep your foot elevated to the level of your heart for 95% of the time. It is recommended you stay at home during this period.

High elevation of the foot and ankle after surgery

High elevation of the foot and ankle

Naturally most people do not have a hospital bed at home. The same effect can be achieved by lying in a bed or lengthways on a sofa, with pillows behind your back and under your foot. You cannot have your leg elevated sitting in a chair. It is strongly advised that during the first two weeks you are house bound.

To minimise risk of infection keep the foot dry and cool. Avoid humid and hot environments. Keep the foot dry and when showering wear a Limbo bag.

To minimise the risk of blood clots please move your foot and ankle at regular intervals. Please ensure you are well hydrated. If you have a risk of blood clots please notify Mr Malik who may organise for you to have blood thinning injections as a precaution.


Two weeks post operatively

You will be reviewed at the clinic and your dressings removed. Your wound will be checked and your toe taped or strapped.

At this stage if the swelling has subsided sufficiently you will be advised to keep your foot in an elevated horizontal position (50-75% of the time). You will require to wear the special post operative shoe for another 4 weeks. Short trips can be made outside, within limits of pain and swelling.

Driving will be permitted for short trips if the left foot has been operated on and you drive an automatic. If the right foot has been operated on it will be at least 8 weeks before any driving is advisable.

Scar desensitisation should start as soon as the wound has completely healed. You can do this by massaging cream (E45 for example) into the scar and around the wound area.


Six weeks post operatively

You will have radiographs taken just before you are seen in clinic. You will go over these with Mr Malik and compare the before and after images. If you have had a bony procedure, it will take a minimum of 6 weeks to heal.

At this stage if your healing is progressing satisfactorily swelling and bruising should have subsided considerably, although expect some degree of swelling for at least 3 to 4 months.

You will be able to start wearing normal footwear (swelling permitted), although stiff soled shoes are advisable. Continue to do the lesser toe exercises for another 6 weeks.


Three months post operatively

Final clinical examination. Discharge if satisfactory.

FAQs

When can I wear normal shoes?

This depends on your rate of healing and how much pain and swelling you have. For the first 6 weeks we advise you to use the stiff post operative shoe. After 6 weeks it is advised that you wear a stiff soled shoe with a wide toe box while your foot continues to heal.

When can I drive?

Please see guidance above and information here. Ultimately it is the responsibility of the patient to decide if they are safe to drive. A good way of knowing is if you can stamp your right foot heavily on the ground to mimic an emergency brake. If you have any hesitation or pain then it should suggest you are not safe to drive. Remember prolonged driving involves keeping your feet in a dependant position. This will worsen the post operative swelling.

When can I return to work?

This really depends on you and your job. If you have a job that involves a lot of standing, walking and is manual it may be 8 to 12 weeks. If you have a sedentary job, for example in an office and you have a reasonable commute you may be able to go back to work at 2 weeks, although this would be exceptional and not the norm.

What should the final outcome be?

Excellent pain relief and deformity correction. Ability to participate in sports by 6 months. Sometimes up to a year before the foot feels “normal” and fully healed.

5th Metatarsal Base Fracture

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5th Metatarsal Base Fracture

What Is A 5th Metatarsal Base Fracture?

As the name suggests this is a fracture at the base of the 5th metatarsal. Fractures at the base of the 5th metatarsal are quite a common injury.

A “Fracture”, “break”, and “crack” are often used to describe an injury to a bone. Contrary to what most people think, they all mean the same thing. A fracture is a complete or incomplete break in a bone resulting from the application of excessive force.

Displaced avulsion fracture at the base of the 5th metatarsal

Displaced avulsion fracture at the base of the 5th metatarsal

There are 3 types of 5th metatarsal base fracture depending on the Zone of injury:

  • Zone 1: Avulsion facture
  • Zone 2: Jones fracture
  • Zone 3: Proximal diaphyseal fracture

 

 

X-ray demonstrating the areas of injury from 5th metatarsal foot fractures

X-ray demonstrating the areas of injury from 5th metatarsal foot fractures

 

What Can Cause It?

The mechanism of injury differs according to which zone the fracture has occurred in:

  • Zone 1: hindfoot inversion (twisting injury of the ankle)
  • Zone 2: forefoot adduction with hindfoot inversion (foot and ankle turned in)
  • Zone 3: repetitive microtrauma (stress fracture)
Foot x-ray demonstrating the zones of injury from 5th metatarsal fractures

Foot x-ray demonstrating the zones of injury from 5th metatarsal fractures

 


Zone 1: Avulsion 5th metatarsal base fracture

These injuries are also known as a Dancer’s fracture. A twisting injury to the foot and ankle literally pulls (avulsion) of a small piece of bone at the base of the 5th metatarsal. While as the name suggests it occurs in dancers, anyone can get this fracture, from a trivial injury such as stepping off a kerb.

A muscle in the leg called peroneus brevis attaches via its tendon to the base of the 5th metatarsal. When the ankle is forced inwards, the pull on the muscle and its tendon is strong enough to pull a bit of bone off.


Zone 2: Jones fracture

This is an acute injury. The mechanism of injury is similar to an avulsion injury. It occurs at the junction of the metaphysis and diaphysis of the metatarsal bone (where the widened part of the bone at its end begins to thin out as it becomes the shaft of the bone). This injury is associated with sports such as football and rugby.

X-ray of the foot demonstrating a Jones fracture

X-ray of the foot demonstrating a Jones fracture


Zone 3: Proximal diaphyseal fracture

This can be thought of as a chronic Jones fracture. The history is typically of pain for several weeks or months. This is a stress fracture of the 5th metatarsal. It typically occurs in athletes and is often a sports injury. This part of the metatarsal has a poorer blood supply than the bone more proximal and distal to it. It is called a “vascular watershed” zone. For that reason healing occurs slower. Repetitive strain and injury from playing sports for example can weaken the bone and result in a stress fracture. A stress fracture occurs when the rate of injury is greater than the bodies rate of healing.

This fracture can also occur in people who have very high arched feet (pes cavus). People with this foot shape tend to walk on the outer aspect of their foot. This can cause lateral foot overload, resulting in a stress fracture of the 5th metatarsal.

What Are The Symptoms?

Symptoms vary depending on the site of the fracture.

X-ray of the foot demonstrating the zones of injury in base of 5th metatarsal fractures

X-ray of the foot demonstrating the zones of injury in base of 5th metatarsal fractures


Zone 1: Avulsion 5th metatarsal base fracture

  • Pain over the lateral border of the midfoot, especially with weight bearing
    • Aching (particularly at night)
    • Sharp pain when weight bearing
    • Limp
  • There may be no or minimal symptoms
  • Swelling
  • Bruising and skin discolouration
  • Ankle instability

Zone 2: Jones fracture

  • Pain over the lateral border of the midfoot, especially with weight bearing
    • Aching (particularly at night)
    • Sharp pain when weight bearing
    • Limp
  • There may be no or minimal symptoms
  • Swelling
  • Bruising and skin discolouration
  • Ankle instability

Zone 3: Proximal diaphyseal fracture

  • Pain over the lateral border of the midfoot
  • Inability to play sports
  • Difficulty walking
  • Ankle instability

What Investigations May Be Required?

Radiographs (x-rays) of the foot help identify the fracture and importantly the zone of injury. This helps distinguish whether it is an avulsion (Zone 1) from a Jones fracture (Zone 2) for example. Radiographs also provide information regarding the fracture:

  • Is it a complete fracture?
  • Is there any displacement of the fracture?
  • Is it comminuted (multi fragmentary)?
  • Acute fractures should show sharp edges to the bone
  • Non-union or delayed union will show:
    • Persistent fracture line
    • Absence of bone crossing the fracture site
    • Sclerotic (whitened) fracture edges
  • Stress fractures will have a widened fracture line

CT and MRI are not usually required to make the diagnosis in acute setting. They may be considered in the setting of delayed healing or non-union.

CT scan of the 5th metatarsal showing partial union (healing) of the 5th metatarsal bone (white circle)

CT scan of the 5th metatarsal showing partial union (healing) of the 5th metatarsal bone (white circle)

Can The Problem Get Worse?

The prognosis depends on individual patient factors and characteristics of the fracture itself.

X-ray of the foot demonstrating the zones of injury in base of 5th metatarsal fractures

X-ray of the foot demonstrating the zones of injury in base of 5th metatarsal fractures

 


Zone 1: Avulsion 5th metatarsal base fracture

The majority of these injuries heal with conservative management without complication. There is a small risk of non union particularly if there is significant displacement.


Zone 2: Jones fracture

As with most fractures a Jones fracture will usually heal if the foot it protected from weight bearing for a long enough period of time. Approximately 66-75% of these fractures will heal with conservative management.

However, as discussed earlier the area of the bone that is fractured has a relatively poor blood supply. This means that it may take longer for the bone to heal (delayed union), or that the bone may not heal at all (non union). Due to the high risk of non union many patients decide to have surgical fixation.


Zone 3: Proximal diaphyseal fracture

The same can be said for these fractures. In addition as these fractures are related to repetitive stress at the level of the fracture site, there is always a concern that the fracture may recur. In patients with a foot and lower limb that lends itself towards lateral overload (High arched feet – Pes cavus for example) there may be a higher risk of developing non-union and repeat fractures.


General risk factors for delayed healing, or non union of fractures include:

  • Smoking
  • Weight bearing too early or excessively
  • Increasing age
  • Previous surgery
  • Use of steroids or other immunosuppressant
  • Diabetes
  • Poor blood supply (including peripheral vascular disease)
  • Site of surgery
  • Metabolic bone disease (for example thyroid problems)
CT of the foot demonstrating non union of a 5th metatarsal bone fracture

CT of the foot demonstrating non union of a 5th metatarsal bone fracture

Non-Operative Treatment Options

Zone 1: Avulsion 5th metatarsal base fracture

  • Protected weight bearing in stiff soled shoe or walking boot, rarely a walking plaster may be required
  • Weight bear as pain allows (use two crutches if necessary)
  • Start wearing stiff soled shoes by 6 to 8 weeks
  • This is a frustrating injury as it can take anywhere from 6 weeks to 6 months to heal
  • Occasionally there is radiographic evidence of delayed union or non-union, fortunately the patient’s symptoms are usually minimal
  • It can be many months before the bone is completely healed and a full recovery has been achieved
X-ray of a minor undisplaced 5th metatarsal fracture that can be treated without undergoing an operation

X-ray of a minor undisplaced 5th metatarsal fracture that can be treated without undergoing an operation


Zone 2: Jones fracture

  • Criteria for non operative management
    • Acute injury
    • Minimal displacement
    • No evidence of non union
  • Non weight bearing for at least 6 to 8 weeks in a cast or boot
  • Commence gradual weight bearing when radiological signs of healing

Zone 3: Proximal diaphyseal fracture

  • Criteria for non operative management
    • Minimal displacement
    • No evidence of non union
  • Non weight bearing for at least 6 to 8 weeks in a cast or boot
  • Commence gradual weight bearing when radiological signs of healing

Operative Treatment Options

Surgical management is reserved for patients who have failed to respond to non operative treatment or when a decision has been made to pursue surgery due to the high complication rate associated with non operative management, for example non union. There is an argument that operative treatment can also enhance recovery and healing times which may be important for example in patients who wish to return to sports sooner.

Patients should understand that the decision to undergo surgery should not be taken lightly.

A variety of surgical options exist which need to be tailored to the individual and the stage of the disease.


Zone 1: Avulsion 5th metatarsal base fracture

Very rarely is it necessary to operate on these fractures acutely. When there is significant displacement a patient may choose to undergo surgical fixation of the fracture.

In patients managed non-operatively, if recovery has been complicated by painful non union particularly in the presence of significant displacement surgery is indicated.

A - Displaced non union 5th metatarsal fracture B - a 5th metatarsal fracture successfully fixed with plate and screws

A – Displaced non union 5th metatarsal fracture B – a 5th metatarsal fracture successfully fixed with plate and screws

Before and after radiographs of a non-union avulsion base of 5th metatarsal fracture fixed with bone graft and screw

Before and after radiographs of a non-union avulsion base of 5th metatarsal fracture fixed with bone graft and screw


Zone 2: Jones fracture

Undisplaced and simple 2 part fractures, that are acute, can be treated using an intramedullary screw. This is often performed using an MIS technique.

An illustration of an Arthex 5th metatarsal solid screw

An illustration of an Arthex 5th metatarsal solid screw

For patients with a comminuted (multi fragmentary), delayed presentation, established non union or displacement of the fracture, a mini open technique will be employed. This is to allow freshening up of the fracture site, insertion of bone graft (often obtained from the calcaneum), and anatomical fixation. A small anatomical plate is often used in such cases. This allows for rigid fixation and early mobilisation.

An illustration of a Arthex 5th metatarsal anatomical plate

An illustration of a Arthex 5th metatarsal anatomical plate

An x-ray showing a plate fixation for a 5th metatarsal fracture

An x-ray showing a plate fixation for a 5th metatarsal fracture


Zone 3: Proximal diaphyseal fracture

Operative management is as for Zone 2: Jones fracture. For recurrent fractures or non healing fractures in patients who have very high arched feet (pes cavus). It may be necessary to alter the biomechanics of the foot. People with this foot shape tend to walk on the outer aspect of their foot. This can cause lateral foot overload, resulting in a stress fracture and non healing of the 5th metatarsal.

In rare situations it may be necessary to undertake reconstructive surgery which would repair not only the fracture (often with bone grafting) but also changing the shape of the foot by cutting and repositioning one or more bones in the foot and/or lower leg. A common bone cutting procedure (osteotomy) would be a lateralising calcaneal osteotomy. This involves cutting the heel bone and shifting it more to the outside. This would stop the foot rolling on to the outside (lateral) border when weight bearing.


The aim of surgery is to alleviate pain and return a patient to full function.

Potential Complications

It should be borne in mind that complications can result from a condition with or without surgery.


Potential complications of non operative treatment applicable include:

  • Worsening pain
  • Fracture displacement
  • Stress fracture in another bone in the foot due to compensatory mechanisms
  • Mal union (the bone heals in an abnormal position)
  • Delayed union (the bone takes a long time to heal)
  • Painful non union (the bone fails to heal)

These non operative complications apply to all three types of fracture, Avulsion 5th metatarsal base fracture, Acute and Chronic Jones fracture.


Complications can occur as with any type of surgery. Please see Complications for more detailed explanation of post surgical complications.

Potential complications of operative treatment to all three types of base of 5th metatarsal fractures include:

  • Risks and complications of anaesthesia
  • Bleeding
  • Infection (superficial and deep)
  • Blood clots
  • In the case of an MIS procedure it may be necessary to proceed to open surgery if during the operation it is felt that a better outcome will be achieved using an open technique
  • Sural nerve injury
  • Nerve injury
  • Complex regional pain syndrome
  • Scar tenderness
  • Wound healing problems
  • Non union
  • Need for further surgery
    • Removal of metalwork
    • For non union

Note – this list is not exhaustive and is meant as a guide

Post Operative Period & Recovery

Please read the information regarding what to expect post surgery on this website.

Remember that below is a guide to recovery and that everyone heals at different rates and some people do take longer. Use this information to help you understand your condition, possible treatment and recovery. The timeframes given below are a minimum, it is important that you appreciate this when considering surgery as your healing and recovery may take longer.


Immediate post operative period

Please do not remove your bandages until you are seen by your surgeon Mr Malik at the two week post operative clinic appointment.

For 6 to 8 weeks you will non weight bearing using two crutches. The physiotherapist will guide you with this after your operation and before your discharge from hospital.

For the first two weeks following your surgery please keep your foot elevated to the level of your heart for 95% of the time. It is advisable during this period to remain at home.

High elevation of the foot and ankle following surgery

High elevation of the foot and ankle following surgery

Naturally most people do not have a hospital bed at home. The same effect can be achieved by lying in a bed or lengthways on a sofa, with pillows behind your back and under your foot. You cannot have your leg elevated sitting in a chair. It is strongly advised that during the first two weeks you are house bound.

To minimise risk of infection keep the foot dry and cool. Avoid humid and hot environments. Keep the foot dry and when showering wear a Limbo bag.

To minimise the risk of blood clots please move your foot and ankle at regular intervals. Please ensure you are well hydrated. If you have a risk of blood clots please notify Mr Malik who may organise for you to have blood thinning injections as a precaution.


Two weeks post operatively

You will be reviewed at the clinic and your dressings removed. Your wound will be checked.

At this stage if the swelling has subsided sufficiently you will be advised to keep your foot in an elevated horizontal position (50-75% of the time). You will require to wear the special post operative shoe for another 4 weeks. Although this does not mean you can walk on the operated foot. The shoe is only there to protect your foot incase you stumble. Short trips can be made outside, within limits of pain and swelling.

Driving will be permitted for short trips if the left foot has been operated on and you drive an automatic. If the right foot has been operated on it will be at least 8 to 10 weeks before any driving is advisable.

Scar desensitisation should start as soon as the wound has completely healed. You can do this by massaging cream (E45 for example) into the scar and around the wound area.


Six to eight weeks post operatively

You will have radiographs taken just before you are seen in clinic. You will go over these with Mr Malik and compare the before and after images. If you have had a bony procedure, it will take a minimum of 6 to 8 weeks to heal.

At this stage if your healing is progressing satisfactorily swelling and bruising should have subsided considerably, although expect some degree of swelling for at least 3 to 4 months.

If there are signs of radiological healing at this appointment, you will be able to start weight bearing gradually in a special walker boot as comfort allows. During the 6 to 8 weeks of immobilisation your foot & ankle will get stiff and your calf and thigh muscles will waste. Hydrotherapy (exercises in the swimming pool) will help to restore ankle range of motion and general fitness. Pool running using a bouyancy belt is an excellent non impact form of exercise and will help regain muscle and bone strength.

Once you have been given permission to put partial weight through the injured foot then an exercise bike can also be used for fitness work. At this stage a referral to a physiotherapist will be made who will guide you through your rehabilitation.


Three to Six months post operatively

Final clinical examination. Discharge if satisfactory.

FAQs

When can I drive?

Please see guidance above and information here. Ultimately it is the responsibility of the patient to decide if they are safe to drive. A good way of knowing is if you can stamp your right foot heavily on the ground to mimic an emergency brake. If you have any hesitation or pain then it should suggest you are not safe to drive. Remember prolonged driving involves keeping your feet in a dependant position. This will worsen the post operative swelling.

When can I return to work?

This really depends on you and your job. If you have a job that involves a lot of standing, walking and is manual it may be 12 weeks at the earliest. If you have a sedentary job, for example in an office and you have a reasonable commute you may be able to go back to work at 2 weeks, although this would be exceptional and not the norm.

When can I return to sports?

This really depends on how long it takes the fracture to heal. It will then be important to exercise and regain your fitness. Returning to activity too early, before the bone has fully healed runs the risk of re-injury or development of a new injury.

What should the final outcome be?

Excellent pain relief and return to full function. Ability to participate in sports by 6 months. Sometimes up to a year before the foot feels “normal” and fully healed.

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