A Jones fracture is a break at the base of the 5th metatarsal — the long bone behind the little toe — on the outer side of the foot. It matters because it sits in a zone with a poor blood supply, so it heals slowly and can fail to heal altogether. So why is a Jones fracture important to diagnose, and what should you do about it?
What causes a Jones fracture?
A Jones fracture can result from an acute injury, such as an ankle sprain, or develop gradually from chronic overload. Repetitive, excessive load can weaken the bone and cause a stress fracture in the same place.
The fracture occurs at a specific spot — the metaphyseal-diaphyseal junction, about 1.5 cm from the tip of the base. This is a watershed area with a limited blood supply, which is exactly why healing is slow.
Symptoms of a Jones fracture
A Jones fracture usually causes acute pain in the outer part of the mid-foot, with swelling and difficulty weight-bearing. There’s typically tenderness right over the base of the 5th metatarsal.
Diagnosis: why the type of 5th metatarsal fracture matters
An X-ray confirms the fracture and pinpoints its location. That location is everything, because your doctor must distinguish a true Jones fracture from the other fractures of the 5th metatarsal — which heal very differently:
- A Jones fracture sits in the zone between the base and the shaft, in the poor-blood-supply watershed area. It’s the one that heals slowly and may need surgery.
- An avulsion fracture (sometimes called a pseudo-Jones) occurs at the very tip of the base, usually pulled off during an ankle sprain. These heal well in a walking boot.
- A Dancer’s fracture runs through the middle (shaft) of the 5th metatarsal. This is also usually treated in a boot, unless the fracture ends are significantly displaced.
Mistaking a Jones fracture for an avulsion is a common and important error — because the Jones fracture needs closer monitoring and, in some people, surgery.
What should you do about a Jones fracture?
Once the diagnosis is confirmed, the decision is between non-operative and operative treatment. Because Jones fractures heal slowly, your doctor should talk you through the pros and cons of each.
Non-operative treatment
Non-operative treatment is protected weight-bearing in a CAM walker boot, with crutches for the first few weeks. The boot is worn continuously for about six weeks. After that, you gradually come out of the boot and build back into weight-bearing — the transition from boot to shoe takes around two weeks — before progressing from walking to running. Regular X-rays are used to check that the fracture is healing.
Several measures support bone healing: optimising vitamin D and calcium, focused shockwave therapy, and LIPUS (low-intensity pulsed ultrasound). We sometimes check bone health, too, with blood tests and a bone density scan — particularly when the fracture occurred without a clear injury. Complete healing often takes about three months.
Surgery
For athletes, we often consider early surgery to avoid delayed union or non-union — the slow-healing nature of a Jones fracture makes waiting risky when a quick, reliable return matters. But surgery has its own risks, and the decision balances those against the prospect of prolonged healing without it.
The commonest technique is an intramedullary screw placed down the bone, which gives strong fixation and a faster return. Plates and screws are used for displaced fractures and take longer to heal, and bone grafting is occasionally added to encourage healing.
Frequently asked questions about a Jones fracture
How long does a Jones fracture take to heal?
Usually about 2–3 months, whether treated in a boot or with a screw. It rarely heals quickly — expect at least 8 weeks regardless of the treatment, because of the poor blood supply in that part of the bone. Healing is monitored with X-rays.
Can a Jones fracture heal in 4 weeks?
Generally no. It typically takes at least 8 weeks, and often around three months, whether treated operatively or not. Trying to rush back risks the fracture failing to heal (non-union).
How can I improve the healing of a Jones fracture?
Because the blood supply is limited, we optimise everything that helps bone heal: vitamin D and calcium, focused shockwave therapy, and LIPUS. Sticking to the boot regimen and avoiding early loading matter just as much — the most common reason these fractures fail is returning to impact too soon.
Why might a Jones fracture need surgery when other 5th metatarsal fractures don’t?
Because of where it sits, the Jones fracture is in a watershed zone with a poor blood supply, so it’s prone to delayed and non-union. Avulsion and mid-shaft (Dancer’s) fractures sit in better-supplied bone and usually heal well in a boot. This is why correctly identifying the fracture type is so important.
When can I get back to sport after a Jones fracture?
Only once the fracture has healed on X-ray, and then gradually. For athletes, early surgery can shorten and make that return more reliable — but even then, a graded return over weeks is essential to avoid re-fracture, which is a recognised problem with this injury.
Final word from Sport Doctor London about a Jones fracture
A Jones fracture is an important 5th metatarsal fracture, because its poor blood supply makes it slow to heal and prone to non-union. The two priorities are getting the diagnosis right — distinguishing it from the better-healing avulsion and Dancer’s fractures — and choosing the right treatment. For athletes especially, early specialist advice on whether to operate can make a real difference.
If you have pain on the outer side of your foot after an injury, Dr Masci can assess you in London, including the right imaging. Contact the team here or call +44 (0) 203 488 0350.
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