/ CONDITIONS / FIFTH METATARSAL FRACTURE
Fifth Metatarsal Fractures
The fifth metatarsal — the outer long bone of the foot — is one of the most commonly fractured bones in the foot. Where the fracture occurs on the bone determines everything about how it should be treated.
Andrew Gunter, DPM — San Antonio, TX.
Call (210) 581-9800
Why Fracture Location Is Everything
The fifth metatarsal is the long bone on the outer side of the foot that ends at the base of the little toe. Its base — the wider end near the ankle — is the site of three distinct fracture patterns that are frequently grouped together under the label 'fifth metatarsal fracture' but that have fundamentally different clinical implications and management requirements.
The confusion arises because all three fracture types produce outer foot pain and swelling after a twisting injury or prolonged activity, and all three are visible on X-ray at roughly the same location. Patients who research their injury online find conflicting information — some sources say fifth metatarsal fractures heal well in a walking boot, others recommend immediate surgery — because both statements are true depending on which fracture type is present.
The fifth metatarsal base has a watershed area of relatively poor blood supply in its proximal diaphysis — the narrow portion just past the widest part of the base. Fractures that occur in this watershed zone heal poorly because the inadequate blood supply limits the bone's capacity for repair. This is what makes the Jones fracture a high-risk injury despite appearing similar to a much less concerning avulsion fracture just millimeters away on the X-ray.
An avulsion fracture at the very tip of the fifth metatarsal base — where the peroneus brevis tendon attaches — is a low-risk injury that heals reliably with protected weight bearing in most cases. A Jones fracture in the watershed zone just distal to the tuberosity is a high-risk injury with a well-documented tendency for delayed union and non-union, particularly in athletes who return to activity too quickly or who are managed non-surgically when surgical fixation was indicated. A diaphyseal stress fracture through the same general region represents a different mechanism entirely — chronic repetitive loading rather than acute trauma — and also requires careful management.
Dr. Gunter evaluates fifth metatarsal fractures with precise localization on X-ray, assesses the fracture pattern and displacement, considers the patient's activity demands and timeline, and recommends the management approach matched to the specific fracture type — not a generic protocol for all outer foot fractures.
COMMON SYMPTOMS:
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Outer foot pain — at or near the base of the little toe
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Swelling and bruising on the outer foot
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Difficulty or inability to bear weight
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Tenderness directly over the fifth metatarsal base
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Pain that developed after a twisting ankle injury OR after increasing running or walking volume
THE FIFTH METATARSAL BASE HAS THREE FRACTURE ZONES:
Zone 1 — Avulsion fracture
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Very tip of the base (tuberosity)
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Where the peroneus brevis tendon attaches
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Low risk — heals well with conservative management
Zone 2 — Jones fracture
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Proximal diaphysis — the watershed blood supply area
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High risk of non-union — particularly in athletes
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Often requires surgical fixation for reliable healing
Zone 3 — Diaphyseal stress fracture
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Further down the shaft from repetitive loading
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High risk — poor blood supply, high re-fracture risk
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Surgical fixation strongly considered
The Three Types of Fifth Metatarsal Base Fractures
The fracture zone — determined on X-ray by the precise location within the fifth metatarsal base — drives the management recommendation. All three zones can produce similar symptoms.
Zone 1
Avulsion Fracture
A small fragment of bone is pulled off the tip of the fifth metatarsal base by the peroneus brevis tendon during an inversion ankle injury. The most common fifth metatarsal fracture. Despite appearing dramatic on X-ray, this is the lowest-risk fracture of the three zones.
Typical management: Walking boot or cast with protected weight bearing. Surgical fixation rarely needed unless the fragment is large or significantly displaced.
Zone 2
Jones Fracture
A fracture through the proximal diaphysis — the watershed blood supply zone just past the base. The highest-risk fifth metatarsal fracture. The poor blood supply to this area significantly limits healing capacity and produces a well-documented tendency for delayed union and non-union.
Typical management: Surgical fixation with an intramedullary screw is strongly recommended for athletes and active patients. Non-surgical management in a non-weight-bearing cast is an option for lower-demand patients — with close monitoring for delayed healing.
Zone 3
Diaphyseal Stress Fracture
A stress fracture through the fifth metatarsal shaft from repetitive loading — not an acute injury. Common in runners and military personnel. High risk of re-fracture and non-union in the same poor blood supply zone as the Jones fracture.
Typical management: Surgical fixation with an intramedullary screw is commonly recommended, particularly for athletes who cannot tolerate a prolonged non-weight-bearing course or who have experienced prior stress reactions in the same area.
Treatment Options for Fifth Metatarsal Fractures
The appropriate treatment depends entirely on the fracture zone, displacement, the patient's activity demands, and timeline. Dr. Gunter evaluates each fracture individually before recommending a management approach.
Non-surgical management
Appropriate for most Zone 1 avulsion fractures and for selected Zone 2 Jones fractures in lower-demand patients. Protected weight bearing in a cast or walking boot allows healing under appropriate load protection. Zone 2 and Zone 3 fractures managed non-surgically require close follow-up imaging to confirm healing progression — non-union in the watershed zone can develop silently.
Intramedullary screw fixation
The surgical standard for Jones fractures and diaphyseal stress fractures. A single intramedullary screw placed along the medullary canal of the fifth metatarsal provides stable fixation, compresses the fracture site, and — by stabilizing the bone — allows earlier weight bearing and return to activity than non-surgical management.
Non-weight-bearing protection
For Zone 2 and Zone 3 fractures managed non-surgically, strict non-weight-bearing in a cast for an extended period is required to give the poor blood supply zone the best possible opportunity for healing. This is a significant lifestyle commitment — particularly for working adults and athletes — and is one of the factors that leads many active patients to choose surgical fixation for the faster and more predictable return-to-activity profile it provides.
Return-to-activity planning
Regardless of surgical or non-surgical management, return to sport and full activity after a Jones or Zone 3 fracture requires confirmation of healing on imaging — not simply the passage of time. Premature return to loading before healing is confirmed is the most common cause of Jones fracture refracture. Dr. Gunter coordinates follow-up imaging and advises on return-to-activity milestones at each follow-up appointment.
Related conditions: Stress fractures · Ankle sprains & instability · Ball of foot pain & metatarsalgia
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Frequently Asked Questions — Fifth Metatarsal Fractures
Fifth metatarsal fracture?
The location determines everything — get it evaluated properly.
Dr. Andrew Gunter, DPM evaluates fifth metatarsal fractures with precise X-ray localization — identifying the fracture zone and recommending the management approach matched to the specific injury. From avulsion fractures to Jones fractures requiring surgical fixation, Dr. Gunter manages the full spectrum. CHRISTUS Santa Rosa Alamo Heights and affiliated facilities. Serving San Antonio and surrounding communities. Same-day appointments available. Most insurance plans accepted.
Call (210) 581-9800