Plain Splints: Uses, Benefits, and Immobilization

Plain splints are rigid or semi-rigid orthopedic devices used to immobilize injured body parts—primarily limbs—during initial treatment and transport. They are a fundamental tool in emergency medicine, orthopedics, and first aid.

Common Indications

• Fractures (closed and open)
• Joint dislocations
• Severe sprains/strains
• Suspected fractures pending imaging
• Post-surgical immobilization (adjunct to casts)
• Soft tissue injuries requiring rest

Types of Plain Splints

• Rigid: Wood, metal, plastic, cardboard (e.g., SAM Splint, board splint)
• Soft/Improvised: Pillows, blankets, towels, magazines (temporary)
• Traction splints: For femur fractures (e.g., Hare, Sager)
• Air splints: Inflatable, conforming to limb

Key Principles of Application

1. Immobilize the joint above and below the injury site.
2. Check CMS (circulation, motion, sensation) before and after application.
3. Pad bony prominences to prevent pressure injury.
4. Secure firmly but not tightly—allow for swelling.
5. Do not attempt to realign grossly deformed limbs unless trained and distal pulses are absent.

Benefits

• Reduces pain by preventing movement
• Minimizes soft tissue damage from bone fragments
• Decreases bleeding and swelling
• Facilitates safe transport
• Low cost, widely available, easy to apply

Plain splints are a critical first step in fracture management—buying time for definitive care.