In what situations should a SAM splint be used during an injury?
Short Answer: A SAM splint is used whenever a limb injury looks like a fracture or dislocation and the casualty needs to be kept still until professional care takes over. It is a thin sheet of aluminium sandwiched in closed-cell foam, flexible enough to mould around a wrist or ankle and rigid once it has been curved along its length. Adding one to a first aid kit matters most where falls or long transport times are realistic, because improvised splints made from magazines and sticks rarely hold for long.
Knowing when a splint helps depends on the type of injury and how far away help is, so before adding one to your kit, you also need to consider the following:
• How does a SAM splint stabilise fractures?
• Are splints required in high-risk workplaces?
• Can splints be reused after treatment?
• Should splints be included in travel or remote kits?
How does a SAM splint stabilise fractures?
Laid flat, a SAM splint is floppy enough to roll up and fit in a pocket. The rigidity comes from shape rather than material, because bending a curve along the length of the splint turns the aluminium into a channel that resists flexing in the same way a folded sheet of paper holds its shape. A single lengthwise curve is enough for most forearm injuries, and a second reverse curve at the end adds strength where a longer span is needed.
The first aid principle behind any splint is to immobilise the joint above and the joint below the suspected fracture. A forearm injury therefore needs the splint to run from past the elbow to the fingers, while an ankle is usually managed with a stirrup shape running down one side of the lower leg, under the heel and up the other. Moulding the splint against the uninjured limb first saves handling the injured one more than necessary, and padding over bony points keeps pressure sores from developing on a longer transfer.
Once shaped, the splint is held in place with a conforming or crepe bandage wrapped firmly but not tightly. Checking the fingers or toes before and after bandaging is the step people skip, and it matters because swelling continues after the splint goes on. Colour and sensation beyond the injury should stay normal, and any change means loosening the bandage. The limb is splinted in the position it was found rather than straightened, and where bone has broken the skin, bleeding is controlled and the wound covered before the splint is applied.
Are splints required in high-risk workplaces?
Not by name. Neither AS 2675-1983 nor the Safe Work Australia Model Code of Practice: First Aid in the Workplace lists a SAM splint as a mandatory item for every workplace. What the Code does require is that first aid equipment reflects the hazards identified in the workplace risk assessment, and on sites where fractures are a foreseeable injury, a splint is the equipment that addresses that hazard.
That covers more workplaces than people expect. Construction sites carry fall and crush risks from scaffolding and materials handling. Warehouses and distribution centres see forklift incidents and falls from loading docks, while agricultural properties deal with livestock handling and quad bike rollovers that routinely produce limb fractures. Sporting clubs and schools manage a steady stream of wrist and ankle injuries, even if they rarely think of themselves as high risk.
A useful test is whether an inspector reading your risk assessment would find fractures listed among the likely injuries. If they would, and the kit has nothing to immobilise a limb, the gap between the assessment and the equipment is the kind of inconsistency that attracts attention. Adding one or two SAM splints costs little and closes it.
Can splints be reused after treatment?
Usually, yes, which is one of the practical advantages over single-use alternatives. The closed-cell foam does not absorb fluids the way fabric does, so a splint that has been used without contamination can be cleaned with soap and water or a suitable disinfectant, dried, flattened and returned to the kit. Manufacturers generally describe the product as reusable for that reason.
There are sensible limits. A splint soaked in blood that cannot be fully cleaned belongs in clinical waste rather than back in the kit, since infection control outweighs the modest cost of replacement. Torn or compressed foam reduces padding and comfort, and aluminium that has been bent sharply at the same point several times can weaken, so a splint showing either kind of wear should be retired. It is also common for a splint to leave with the casualty in the ambulance, which means the kit is short one until somebody notices.
Recording each use in the kit log is the simplest way to avoid that last problem. A note that the splint went to hospital with the patient turns into a replacement order rather than an unpleasant discovery during the next injury.
Should splints be included in travel or remote kits?
Yes, and arguably this is where they earn their place most clearly. In a metropolitan setting, a fracture may only need holding still for the ten or fifteen minutes before paramedics arrive. On a remote track or a boat offshore, that period can stretch to hours, and a limb that is not properly immobilised over that time means more pain and a higher risk of further damage to blood vessels and nerves.
The format suits travel well. A standard SAM splint weighs a little over 100 grams and rolls into a cylinder that fits alongside a water bottle. It can be cut with trauma shears to make a finger splint or a shorter child-sized version, and it is not affected by moisture or temperature in the way many kit contents are. Pairing it with training such as HLTAID013 Provide first aid in remote or isolated site makes sure somebody in the group knows how to shape it properly.
Furthermore, a special duty is placed on the PCBU to ensure that all first aid kits are routinely inspected and maintained, which applies to tour operators and outdoor education providers whose kits travel with their staff and clients. Splints are easy to overlook in an inspection because they rarely expire, yet they are one of the items most likely to leave the kit and not come back. SURVIVALSWAP restocks used items on a managed schedule, so a splint that went to hospital is replaced before the next trip rather than after the next fracture.
Related Question
Can a SAM splint be used for a suspected neck or spinal injury?
Not by a first aider. Although trained paramedics sometimes improvise a cervical collar from a SAM splint, current Australian first aid guidance advises against first aiders applying collars at all, because a poorly fitted one can cause harm and may restrict breathing. The recommended approach is to keep the person still with the head supported by hand in the position found, and call triple zero. If the casualty is conscious and breathing, reassurance and keeping them still matter far more than any equipment. The main exception is when the airway is at risk, such as with vomiting, in which case turning the person onto their side with the head supported takes priority over spinal precautions. SAM splints are best kept for the limb injuries they were designed for.
Conclusion
A SAM splint is one of the most versatile items a kit can carry, and one of the most commonly missing. Use it for suspected fractures and dislocations, shape it with a lengthwise curve so it holds the joints on either side of the injury, and check circulation before and after. Carry one wherever your risk assessment lists falls or crush injuries, and treat it as essential anywhere help is more than a short drive away. SURVIVAL supplies Australian first aid kits and SAM splints alongside the trauma modules and accessories that suit high-risk workplaces and remote travel. If your kit has never had a splint in it, that is an easy gap to close.