On-Field Cervical Spine Immobilisation

Overview

A player is face down in a ruck and not moving. Between that moment and the ambulance door a series of decisions get made that will not be revisited, and most are made by whoever reaches the athlete first. This is the part of sport and exercise medicine (SEM) that looks least like a clinic and rewards rehearsal more than knowledge.

Two things make the pitchside version distinctive. Sport supplies the exact mechanisms that count as high risk: an axial load to the head, which is what a collapsed scrum, a tackle to the crown or a dive into shallow water delivers, and a fall from a horse. And the decision is not only whether to immobilise but whether you can safely decide not to. An athlete who meets the criteria can be cleared on the field without imaging; one who does not travels immobilised, and imaging follows where it is indicated.

The received picture has aged in parts but not in others. The long board really has become an extrication device and nothing else. The collar has not gone: current UK guidance still has it in the sequence, with named exceptions worth knowing.

This page is about the field. The injuries themselves and their definitive management sit on the Cervical Spine Fracture and Trauma page.

The Decision: The Canadian C-Spine Rule

UK practice assesses risk using the Canadian C-spine rule, and the order is the whole point.

High-risk factors come first: age 65 or over, paraesthesia in the upper or lower limbs, or a dangerous mechanism. The mechanisms named include an axial load to the head, with diving as the worked example, a fall from a height greater than one metre or five steps, and horse riding accidents. Sport supplies these routinely, which is why a pitchside clinician meets this rule more often than most.

If any high-risk factor is present, the athlete is immobilised. There is no rotation test and no negotiation.

Only where there is no high-risk factor do you look for a low-risk factor that permits safe assessment: comfortable in a sitting position, ambulatory at any time since the injury, no midline cervical tenderness, or delayed onset of neck pain.

And only then do you ask the athlete to actively rotate their neck 45 degrees to the left and right. The range can only be assessed safely once they are low risk with no high-risk factor, and testing rotation before you have established that is not a shortcut. It is the mechanism.

If they can rotate 45 degrees each way, immobilisation is not required. If they cannot, or the assessment cannot be done at all, they are immobilised.

The Canadian C-spine rule as a three-gate decision chart for an alert, stable trauma patient. Gate one: any high-risk factor (age 65 or over, a dangerous mechanism, or paraesthesia in the extremities) mandates imaging. Gate two, only if there is no high-risk factor: a low-risk factor (a simple rear-end collision, a sitting position, ambulatory at any time, delayed onset of neck pain, or no midline cervical spine tenderness) allows safe assessment of movement. Gate three: if the patient can actively rotate the neck 45 degrees to the left and right, no imaging is needed; unable, or no low-risk factor, means imaging. — The order is the point: high-risk factors first, then a low-risk factor, and only then rotation.

Red Flags

•Age 65 or over, or paraesthesia in the limbs.
•Axial load to the head: a dive, a collapsed scrum, a tackle to the crown.
•A fall from a horse, or from over a metre or five steps.
•Any of these means immobilise. Do not test rotation.

Doing It: The Stepwise Approach

The sequence for full in-line immobilisation in an adult is specific, and the order is the teaching.

Manually stabilise the head with the spine in line. Hands first, and they stay. Then fit an appropriately sized semi-rigid collar, unless it is contraindicated. Then reassess the airway. Then place and secure the athlete on a scoop stretcher. Then secure with head blocks and tape, ideally in a vacuum mattress.

Two contraindications to the collar are named and both are live on a pitch. The first is a compromised airway, because a collar that obstructs an airway is not protecting anything. The second is a known spinal deformity such as ankylosing spondylitis, and there the instruction is explicit: keep the spine in the athlete's current position. Forcing an ankylosed cervical spine towards neutral is how you fracture it.

Reassessing the airway after the collar goes on is the step that gets skipped, and it is in the guidance for a reason. A correctly fitted collar can create the problem you did not have a minute earlier.

The kit, and what each piece is actually for:

A scoop stretcher, which splits and closes around the athlete so that no log roll is needed.
A vacuum mattress, which moulds and then rigidifies, and is the device for the transfer.
Head blocks and tape, which restrict rotation once the athlete is on a device.
A long board, which is for extrication only and is discontinued as soon as the assessment allows. Nobody should still be on one at the hospital.

A reference chart of pitchside immobilisation kit. A scoop stretcher that splits and closes around the athlete so no log roll is needed. A vacuum mattress that moulds then rigidifies, the device for a longer transfer. Head blocks and tape that restrict rotation once the athlete is on a device. A long board for extrication only, never a transport device. A Kendrick extrication device for the seated athlete, mostly motorsport. A banner notes that manual in-line stabilisation is present from first contact to handover. — The kit and what each piece is for; manual in-line stabilisation stays from first contact to handover.

Document limb motor and sensory function before you move the athlete and again afterwards. If something changes, you need to know that it changed and when.

The Pitchside Problems

The prone athlete is the commonest problem. Talking, breathing, airway safe, and there is no hurry: hold, plan the lift, and turn them once, in a controlled way, with enough people. Airway not safe, and the calculus inverts. The turn happens now, in line, because a protected cervical spine in an obstructed airway is a corpse with good alignment.

The athlete in cardiac arrest with a suspected neck injury is the collision nobody enjoys. Compressions win. The spine is protected as far as a spare pair of hands allows, and if the choice is between a perfect log roll and a timely defibrillation, it is not a choice.

The standing or walking athlete gets guided rather than taken down: no standing takedown, and instead verbal instruction to lower themselves. That applies to an athlete who is not trapped and who has no spinal pain, no neurological symptoms, no significant distracting injury and no high-risk factor. Anyone else is immobilised where they are.

Helmets are sport-specific and so is the plan. Where a helmet holds the head in alignment with shoulder pads, removing one without the other creates the movement you are trying to prevent, and where a facemask can be removed to reach the airway, that is usually the better first move. Work it out at a rehearsal, not during a match.

Where an acute traumatic spinal cord injury is suspected, the athlete goes urgently to a major trauma centre, unless an immediate lifesaving intervention makes a diversion necessary.

A four-row decision chart for a suspected neck injury on the field. Prone with a safe airway and talking: hold, plan the lift, turn once with enough people. Prone with an unsafe airway: log roll to supine now, in line, because the airway wins. In cardiac arrest: compressions win, stabilise the neck if hands allow. Standing or walking: no standing takedown, guide self-extrication. — What wins, and when: airway and compressions outrank the cervical spine where they genuinely conflict.

High-Yield

•Test rotation only in a low-risk athlete with no high-risk factor.
•Collar contraindications: a compromised airway, and ankylosing spondylitis.
•Reassess the airway after the collar goes on.
•Suspected cord injury goes urgently to a major trauma centre.

Key Evidence and Guidelines

Current NICE guidance on spinal injury sets the Canadian C-spine rule for risk assessment, the stepwise approach to full in-line immobilisation, the two collar contraindications, the instruction to reassess the airway after the collar, and the position that spinal boards are for extrication only.
The British Orthopaedic Association standard on assessment of the spine in the trauma patient requires every trauma network to hold a spinal immobilisation protocol covering collars, log rolling and transfers, and states the ankylosing spondylitis position.
The Faculty of Pre-Hospital Care sets the immediate care in sport standards that determine who at your venue is trained to do any of this.

Exam Tips

•Apply the Canadian C-spine rule in order: high-risk factors, then low risk, then rotation.
•Test 45-degree active rotation only in a low-risk athlete with no high-risk factor.
•Axial load to the head and a fall from a horse are named high-risk mechanisms.
•The sequence is hands, collar unless contraindicated, reassess airway, scoop, blocks.
•Collar contraindications are a compromised airway, and deformity such as ankylosing spondylitis.
•The long board is for extrication only; suspected cord injury goes to a major trauma centre.

Useful Links

NICE: spinal injury, assessment and initial management

nice.org.uk

British Orthopaedic Association: assessment of the spine in the trauma patient

boa.ac.uk

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