Fracture management in rural — reduction, splinting, transfer criteria

Overview

Fracture management is a core competency for the rural generalist. In remote and rural Australia, the nearest orthopaedic service may be hundreds of kilometres away; the rural generalist must be capable of initial assessment, adequate analgesia, fracture reduction where appropriate, immobilisation, and safe orchestration of transfer.

Fundamental principle: stabilise, analgise, immobilise, and transfer if needed, life-threatening injuries take priority over limb-threatening ones, except where haemodynamic instability is caused by a femoral shaft fracture, in which case fracture reduction is part of resuscitation.

Presentation and Assessment

Clinical Hallmarks of Fracture

Neurovascular Assessment

Neurovascular status must be documented before and after any manipulation or splinting. Assess:

• Distal pulses (capillary refill, Doppler if available)
• Sensation distal to fracture
• Motor function distal to fracture
• Skin colour, temperature, and coolness

Any decrease in pulse strength or increase in pain after splinting requires immediate reassessment. Circumferential dressings, casts, or splints that compromise vascular integrity must be loosened or removed.

Limbs with vascular compromise (cool, pale, pulseless distal segment) require urgent reduction to restore flow. Restoring the general anatomical course of vessels, not perfect reduction, is the acute goal. If arterial injury accompanies a major joint dislocation, carefully attempt reduction or splint the joint as-is and obtain urgent surgical consultation.

Note: A non-bleeding vascular injury in an extremity does not take clinical priority over exsanguinating haemorrhage or other immediate life threats in the primary survey.

Fracture Classification Principles

Open Fracture Management

• Document bone exposure clearly, bone may retract after reduction, altering subsequent examination findings
• Irrigate wound copiously with normal saline; remove gross contamination
• Cover with saline-soaked dressing
• IV antibiotics promptly (weight-based dosing; first-generation cephalosporin ± metronidazole for contamination ± aminoglycoside for Gustilo III)
• Tetanus prophylaxis
• Attempting reduction may reposition previously exposed bone ends within the wound, document thoroughly
• Do not delay transfer for wound closure

Investigation

Imaging

All injured long bones should be imaged in at least two orthogonal views, capturing the entire bone and the joints above and below the injury site. Missing an associated dislocation (e.g. Monteggia fracture, radial head dislocation with ulnar shaft fracture) is a recognised pitfall.

In true remote settings where X-ray is unavailable, clinical diagnosis guides splinting and urgent transfer. Do not delay transfer for imaging if neurovascular compromise is suspected. Do not withhold essential X-rays in pregnant patients, minimise views and document.

Point-of-Care Testing in Significant Trauma

• Blood group and hold / crossmatch
• VBG/ABG to assess haemodynamic state
• Urinalysis (haematuria suggesting pelvic or renal injury)

Compartment Syndrome, Clinical Diagnosis

In resource-limited settings, compartment syndrome is primarily a clinical diagnosis:

$$\Delta P = P_\text{diastolic} - P_\text{compartment} < 30\ \text{mmHg} \Rightarrow \text{fasciotomy indicated}$$

Clinical features: pain out of proportion, pain on passive muscle stretch, tense/tight compartment, paraesthesia, and, late, pallor/pulselessness. Presence of distal pulses does not exclude compartment syndrome. Common sites: lower leg, forearm, foot, hand, thigh, gluteal region.

Peripheral nerve blocks are contraindicated when compartment syndrome is suspected, use IV opioids to avoid masking the diagnosis.

Management

Priority Sequence in Polytrauma (xABCDE)

1. Control exsanguinating haemorrhage, tourniquet, wound packing, pelvic binder
2. Airway, breathing, circulation
3. Femur fractures: splint during primary survey as part of haemorrhage control
4. Other extremity splinting: secondary survey

Femoral shaft fractures can cause 1-2 L of blood loss. Internal bleeding from long bone fractures may be reduced by fracture reduction, splinting, and/or traction:

$$\text{Estimated blood loss, femoral shaft fracture} \approx 1000\text{-}2000\ \text{mL}$$

Pelvic binder (sheet or commercial device) centred over the greater trochanters (not the iliac crests) in haemodynamically abnormal patients with suspected pelvic fracture. Additional prevention of hip external rotation further reduces pelvic volume.

Analgesia

Adequate analgesia and muscle relaxation are essential before any manipulation. Reduction will produce significant pain, explain the procedure to the patient and obtain consent.

Principles of Fracture Reduction

Steps to reduce a displaced fracture (requires adequate anaesthesia, analgesia, and relaxation):

1. Disimpact the fragments, often requires brief exaggeration of the deformity
2. Restore length, longitudinal traction
3. Restore alignment, correct angulation and rotation
4. Stabilise, splint using three-point moulding where applicable; the intact periosteal bridge maintains reduction

Perfect anatomical alignment is not required in the acute setting, restore the general anatomical course of nerves and vessels and relieve pain. If reduction fails, splint in the current position and arrange transfer.

Splinting Principles

Functional / safe positions:

Improvised Splinting in Resource-Limited Settings

When prefabricated equipment is unavailable:

• Wooden boards, sticks, or rolled magazines as rigid supports
• Bandages, clothing, or torn sheets for securing
• Pillows, blankets, or towels as padding substitutes (in place of foam or cotton wool)
• Fluid-filled bags or weighted containers for improvised traction
• Limb salvage may not be achievable where operative resources and transfer capabilities do not exist, document clearly

Common Fracture-Specific Management

Transfer Criteria and Retrieval

Guiding Principle

Recognise early when patient needs exceed local capability. Transfer may be required during the primary survey (e.g. exsanguinating haemorrhage requiring operative intervention beyond local capability). The goal is to sustain life and prevent further injury while arranging definitive care. Treat life-threatening injuries before transfer if resources permit; do not delay transfer to obtain non-essential investigations.

Indications for Urgent Transfer

Before Transfer, Referring Clinician's Responsibility

Use SBAR when contacting RFDS or retrieval service:

• Situation: Mechanism, injuries identified (xABCDE issues), immediate concerns
• Background: AMPLE history, vital signs trend, fluid/blood requirements, investigations and imaging performed, procedures done (e.g. fracture reduction, pelvic binder)
• Assessment: Response to interventions, current physiological state
• Recommendation: Preferred transport mode, care capabilities required en route, expected needs on arrival

Document all procedures: reduction attempts, splints applied, analgesia given, neurovascular status before and after every manipulation.

Transport Mode Considerations

RFDS fixed-wing is most commonly used for non-time-critical fractures requiring definitive care from remote communities. Helicopter retrieval is preferred for time-critical cases (vascular injury, haemodynamic instability).

Special Populations

Paediatric Fractures

Simple splinting is often sufficient as temporising management pending paediatric orthopaedic review. If vascular compromise is present and retrieval is delayed, one attempt at closed reduction under appropriate analgesia and sedation is appropriate, followed by immobilisation and expedited transfer.

Paediatric bones have a thicker, more metabolically active periosteum, faster healing and greater remodelling potential, but growth plate injuries require careful management to prevent long-term deformity.

Elderly and Osteoporotic Patients

• Fractures may occur with trivial mechanisms (fragility fractures)
• Plain X-ray may underestimate fracture extent; CT or MRI may be required at receiving facility
• Hip fractures require urgent transfer; high mortality if surgery delayed
• All patients ≥50 years with a fragility fracture (hip, Colles', vertebral) should be assessed and managed for osteoporosis, calcium, vitamin D, bisphosphonates where appropriate
• Minimise deconditioning; early orthogeriatric involvement at receiving centre

Aboriginal and Torres Strait Islander Patients

• Cultural safety is paramount; use telephone interpreter services; involve family and community as appropriate
• Informed consent: Ensure genuine understanding; fear of hospitals or unfamiliar environments may affect willingness to transfer; explore barriers respectfully
• Social determinants: poor nutrition, high rates of diabetes and chronic disease affect healing and anaesthetic risk
• Increased burden of injury from MVA, occupational trauma, and community violence in remote communities
• CARPA Standard Treatment Manual provides practical, culturally appropriate guidance for remote area nurses managing fractures
• Telehealth via RFDS hubs enables real-time specialist guidance for remote practitioners
• Repatriation planning should begin early, proximity to country improves compliance and recovery

Pregnant Patients

• Pelvic fractures in pregnancy require urgent transfer given risk of haemorrhage and mechanical disruption to pregnancy
• Viable pregnancy (>24 weeks) with torso trauma is an absolute transfer criterion
• Essential X-rays should not be withheld, minimise views, document radiation exposure
• Avoid prolonged supine positioning after 20 weeks; tilt 15° left lateral to relieve aortocaval compression
• Involve obstetric team at receiving facility early; monitor fetal heart rate during transfer where possible

Summary Decision Framework

The rural generalist's role is not to replicate orthopaedic surgery but to stabilise, prevent further injury, provide adequate analgesia, and ensure safe timely transfer, while maintaining cultural safety and clear communication with retrieval services.

Sources

• Royal Flying Doctor Service clinical resources
• CARPA Standard Treatment Manual