A splint's job is to stop a broken or dislocated joint from moving, which controls pain, limits further damage to nerves and vessels, and can slow bleeding into the tissue around the break. The best splint is the one you can apply correctly to the injury in front of you — so most providers carry a moldable splint that adapts to any limb, plus purpose-built options for specific injuries.
| Type | Best for |
|---|---|
| Moldable (foam-and-metal) | The universal splint — bends to fit any limb or joint |
| Rigid / box | Firm immobilization of long-bone fractures |
| Vacuum | Conforms to the limb, then locks rigid; excellent for deformed or angulated fractures |
| Traction | Mid-shaft femur fractures — applies pull to realign and reduce bleeding |
A moldable foam-and-metal splint is the most versatile, because it bends to fit any limb or joint and can be cut and shaped on scene. Most EMS, tactical, and wilderness kits carry one as the baseline.
A traction splint is for an isolated mid-shaft femur fracture, where it applies pull to realign the bone and reduce bleeding and pain. It is contraindicated for pelvic, hip, knee, and lower-leg injuries.
A vacuum splint is a bladder filled with beads that conforms to the limb in any position, then becomes rigid when air is drawn out. It is well suited to deformed or angulated fractures that shouldn't be straightened.
Check circulation, sensation, and movement distal to the injury before and after applying the splint. A splint that is too tight or poorly positioned can cut off blood flow or compress a nerve.
Immobilize the joint above and below the injury, pad bony points, and secure firmly without cutting off circulation. The goal is to prevent movement at the injury site through the entire transport.
MED-TAC International Corp. is a clinician-founded, veteran-led tactical medicine provider. Product references to CoTCCC reflect committee recommendations and do not imply FDA approval or certification. This content is educational and is not a substitute for hands-on training or medical direction.
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