Open fracture requiring antibiotics and tetanus pathway first when feasible
Analgesia and anesthesia
Analgesic framework
Nonopioid base
Acetaminophen PO 15 mg/kg per dose
Maximum 1000 mg per dose
Maximum 4000 mg per 24 hours
NSAID option if no contraindication
Ibuprofen PO 10 mg/kg per dose
Maximum 600 mg per dose
Every 6 to 8 hours as needed
Opioid for severe pain
Morphine PO 0.2 to 0.3 mg/kg per dose
Maximum 15 mg per dose
Every 4 hours as needed
Procedural sedation if reduction required and pain uncontrolled
Monitoring and airway readiness
Continuous pulse oximetry
Cardiac monitoring
Capnography when available
Resuscitation equipment at bedside
Reduction technique principles
Gentle traction and realignment
Fifth ray traction alignment
Countertraction at hindfoot
Avoid repeated forceful attempts
Escalate to orthopedics if unsuccessful
Post reduction requirements
Neurovascular reassessment
Pulses and capillary refill
Sensation in toes
Post reduction radiographs
Alignment confirmation
Displacement remeasurement
Open fracture medications and timing
Antibiotics and tetanus
Antibiotic options
Cefazolin IV 2 g
Every 8 hours while awaiting definitive care
If severe beta lactam allergy, clindamycin IV 900 mg
Every 8 hours while awaiting definitive care
Contamination specific escalation
If farm or heavy contamination, add gentamicin IV 5 mg/kg
Renal dosing adjustments required
Tetanus prophylaxis
If immunization unknown or incomplete, tetanus toxoid and tetanus immune globulin per protocol
If up to date, booster per wound type timing rules
DVT prophylaxis when relevant
Lower limb immobilization context
Routine pharmacologic prophylaxis not universal for isolated foot fractures
Local protocol alignment
Shared decision in high risk patients
High risk features
Prior VTE
Active cancer
Prolonged non weight bearing
Estrogen therapy
Contraindications
Active bleeding
High bleeding risk
Severe thrombocytopenia
Special Populations
Pregnancy
Pregnancy considerations
Imaging safety
Foot radiographs with shielding when feasible
Avoid CT unless strong midfoot injury concern
Analgesia selection
Acetaminophen preferred
NSAID avoidance in later pregnancy per obstetric guidance
Mobility and fall risk
Crutch training emphasis
Consider walking boot for stability
Geriatric
Older adult considerations
Fragility fracture context
Low energy mechanism triggers osteoporosis evaluation
Fall risk assessment
Healing risk
Vascular disease and diabetes impact
Higher threshold for close follow up
Pain medication risk
Delirium risk with opioids
NSAID renal and GI risk
Pediatrics
Pediatric considerations
Growth plate proximity
Apophysis at base differentiation from fracture
Physeal injury exclusion if pain near base
Immobilization choices
Walking boot or short leg splint based on pain
Crutch safety and supervision
Nonaccidental trauma consideration when inconsistent mechanism
Multiple injuries
Delay in presentation
Background
Epidemiology
Epidemiology snapshot
Metatarsal fractures common foot fractures
Fifth metatarsal frequently involved
Athletic and inversion mechanisms common
Dancer fracture pattern
Spiral shaft fracture associated with twisting load
Often distal shaft relative to base fractures
Pathophysiology
Mechanism to morphology
Torsional force through forefoot
Spiral fracture line along shaft
Potential displacement from peroneus brevis and lateral column forces
Vascular considerations
Proximal metaphyseal diaphyseal region relatively higher nonunion risk than distal shaft
Differentiation from Jones fracture essential for prognosis
Associated injury mechanics
Inversion injuries can co injure lateral ankle ligaments
Midfoot rotational force can co injure tarsometatarsal ligaments
Therapeutic Considerations
Nonoperative management rationale
Most nondisplaced shaft fractures heal with functional immobilization
Boot or rigid sole reduces bending stress
Early protected weight bearing supports function
Operative consideration rationale
Significant displacement can alter forefoot mechanics
Malrotation can impair gait and shoe wear
Evidence framing and guideline style statements
Conservative treatment standard for nondisplaced metatarsal shaft fractures
Class I recommendation based on consensus and cohort outcomes
Surgical referral for displaced, multiple, or unstable patterns
Class IIa recommendation based on functional outcome considerations
Patient Discharge Instructions
Copy discharge instructions
Discharge instructions
Diagnosis
Fifth metatarsal shaft fracture consistent with dancer fracture pattern
Closed injury unless otherwise documented
Immobilization care
Keep boot or splint on as instructed
Keep splint dry
Do not insert objects inside splint
Swelling control
Elevation above heart level when resting
Ice 15 to 20 minutes at a time with skin protection
Weight bearing
Weight bearing as tolerated in boot or rigid sole shoe unless instructed otherwise
Crutches if pain limits walking
Pain control
Acetaminophen as directed
Ibuprofen as directed if safe for you
Opioid only if prescribed and only as needed
Activity restriction
No running, jumping, or dancing until cleared
Avoid uneven surfaces
Return to ED now for
Increasing pain not controlled with medications
New numbness or tingling in toes
Toes cold, pale, or blue
Boot or splint feels too tight with worsening swelling
Wet or broken splint
Fever or drainage from any wound
Follow up
Orthopedics or fracture clinic appointment within stated timeframe
Repeat x rays if advised
References
Guidelines and evidence based sources
Core references
Ottawa ankle and foot rules source literature for imaging decisions
Midfoot pain plus fifth metatarsal base tenderness criteria
Weight bearing inability criteria
Orthopedic references on fifth metatarsal fracture zones and prognosis
Zone 1 to 3 differentiation for base fractures
Higher nonunion risk discussion for zone 2 and 3 compared with shaft
Emergency medicine procedural sedation guidance
ACEP clinical policy style framework for ED sedation safety
Monitoring expectations including capnography when available
Coding and terminology
Standardization references
ICD 10 category S92.35 fracture of fifth metatarsal bone
Laterality and encounter modifiers applied per chart
SNOMED CT fracture terminology for metatarsal and spiral morphology
Site and morphology pairing for structured documentation
SymptomDx is an educational tool for medical professionals. It does not replace clinical judgment. Verify all clinical data and drug dosages with authoritative sources.