# Jones Fracture of Fifth Metatarsal

> Jones fracture of the fifth metatarsal for NEET-PG Orthopaedics, covering the zones of the base, the watershed blood supply and fixation for athletes.

- Canonical URL: https://prepelephant.com/topics/neet-pg/orthopaedics/jones-fracture-fifth-metatarsal
- Exam / course: NEET-PG · Subject: Orthopaedics
- Publisher: PrepElephant (https://prepelephant.com) — Prepared and reviewed by the PrepElephant Academic Review Team
- First published: 2026-10-14
- Last updated: 2026-10-14
- Reference basis: Apley's System of Orthopaedics and Fractures; Campbell's Operative Orthopaedics; Rockwood and Green's Fractures in Adults
- How to cite: "Jones Fracture of Fifth Metatarsal", PrepElephant, https://prepelephant.com/topics/neet-pg/orthopaedics/jones-fracture-fifth-metatarsal

## Direct answer

A Jones fracture is a break of the fifth metatarsal at the metaphyseal-diaphyseal junction, a watershed zone with a poor blood supply that heals slowly. Ordinary low-demand cases are managed with a non-weight-bearing cast, whereas athletes are usually offered intramedullary screw fixation to shorten the time to return to sport.

## What you must remember

- **Zone 1:** an avulsion of the tuberosity at the base, usually from traction by the lateral band of the plantar aponeurosis and peroneus brevis, which heals well with a cast or boot.
- **Zone 2:** the metaphyseal-diaphyseal junction, which is the true Jones fracture and has a watershed blood supply with poor healing potential.
- **Zone 3:** a stress fracture of the proximal diaphysis, seen with repetitive loading in runners and dancers.
- **Watershed zone:** the vessels supplying the proximal shaft meet at a poorly vascularised area, the main reason for delayed union.
- **Mechanism:** forefoot adduction with plantar flexion in a sudden twisting injury, or repetitive loading in athletes.
- **Athletes:** intramedullary cannulated screw fixation allows earlier return to sport, and it is preferred in most series of high-demand patients.
- **Low-demand patients:** a non-weight-bearing cast for a stable zone 2 fracture, with healing followed on serial radiographs.

## A zone-based plan for fifth metatarsal base fractures

A 22-year-old basketball player pivots on a plantar-flexed forefoot and feels a snap, with lateral midfoot pain on weight bearing. A sudden adduction load on the forefoot is the classic Jones mechanism, whereas a simple inversion roll more often avulses the tuberosity. The table links each zone to a usual plan.

| Zone | Site | Usual management |
|---|---|---|
| 1 | Tuberosity avulsion | Cast or boot, with weight bearing as pain allows |
| 2 | Metaphyseal-diaphyseal junction | Non-weight-bearing cast for low demand, intramedullary screw for athletes |
| 3 | Proximal diaphysis, stress fracture | Protected loading, with fixation for nonunion or high demand |

The zone reflects the healing biology, so a zone 2 fracture carries a real risk of delayed union that a cast alone may not overcome. Athletes with zone 2 fractures are usually offered screw fixation to avoid prolonged disruption of training. Follow-up films track the bridging callus, and its absence after several months prompts review for nonunion.

## Where the exam tries to catch you

Jones fracture questions test whether the candidate identifies the zone before choosing the treatment.

- **Trap:** calling every fifth metatarsal base fracture an ankle sprain. **Correct:** a Jones fracture is a zone 2 injury that needs imaging and often a period of non-weight bearing.
- **Trap:** treating a zone 1 avulsion like a Jones fracture. **Correct:** a tuberosity avulsion heals well with a cast or boot and does not need the same fixation.
- **Trap:** choosing a cast for an elite athlete with a zone 2 fracture. **Correct:** intramedullary screw fixation is preferred, because it shortens the time to return to sport and lowers the risk of nonunion in most series.

## Frequently asked questions

### What is a Jones fracture of the fifth metatarsal?

A Jones fracture is a fracture of the fifth metatarsal at the metaphyseal-diaphyseal junction, which is zone 2 in the Lawrence and Botte scheme. It is prone to delayed union and nonunion because of its poor blood supply.

### Why do Jones fractures heal slowly?

Jones fractures heal slowly because the metaphyseal-diaphyseal junction of the fifth metatarsal sits in a watershed zone with limited blood supply. Repetitive loading at that point also contributes to delayed union and nonunion.

### How are Jones fractures treated in athletes?

Jones fractures in athletes are usually treated with intramedullary screw fixation, which allows an earlier return to sport than a prolonged cast. A period of non-weight bearing and radiographic follow-up still follow the surgery.

### How does a zone 1 fifth metatarsal fracture differ from a Jones fracture?

A zone 1 fracture is an avulsion of the tuberosity, usually from traction by the lateral band of the plantar aponeurosis and peroneus brevis, and it heals well with a cast or boot. A Jones fracture lies at the metaphyseal-diaphyseal junction, where healing is slower and the treatment is more involved.