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Jones Fracture

What Is A Jones Fracture?

Jones fracture is a type of fracture involving the base of the 5th metatarsal.

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.

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).

X-ray of the foot demonstrating a Jones fracture

X-ray of the foot demonstrating a Jones fracture

What Can Cause It?

This is typically an acute injury. The mechanism of injury is similar to an avulsion injury. Inverting (turning) in at the foot and ankle.

The fracture 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 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

What Are The Symptoms?

The symptoms of a Jones fracture are:

  • 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

What Investigations May Be Required?

Radiographs (x-rays) of the foot help identify the fracture and importantly the zone of injury. 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?

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.

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 fracture

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

Non-Operative Treatment Options

  • 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

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.

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

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 a 5th metatarsal solid screw

An illustration of a 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 5th metatarsal anatomical plate

An illustration of a 5th metatarsal anatomical plate

Plate fixation of a 5th metatarsal fracture

Plate fixation of a 5th metatarsal fracture

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
  • 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 invasive surgery

An example of high elevation of the foot

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.


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.