Skip to Main Content

We have a new app!

Take the Access library with you wherever you go—easy access to books, videos, images, podcasts, personalized features, and more.

Download the Access App here: iOS and Android

Key Points

  • Splinting a fracture is useful to permit healing, relieve pain, and stabilize bony fragments.

  • In acute injuries, splints are preferable to circumferential casts to limit the potential for iatrogenic compartment syndrome.

  • The position of immobilization is important to facilitate proper healing and limit secondary joint stiffness.

  • Always maintain a low threshold for splint application in situations with strong clinical concern but normal radiographs, as some fractures may be occult on initial imaging.


Fracture immobilization is extremely important to ensure proper healing, relieve pain, and stabilize bony fragments. Most acute injuries in the emergency department (ED) are immobilized with the use of splints (instead of casts) to prevent the consequent swelling from inducing a significant increase in tissue pressures. Of note, not all fractures require splinting, and in some situations, prolonged immobilization can lead to contracture formation and the long-term loss of function. In most cases, the extremity is placed in the position of function before immobilization (Table 95-1). The joints immediately distal and proximal to the fracture should be included in the splint to ensure proper stabilization of the injury.

Table 95-1.

Proper joint position for immobilization after most injuries.

Splints are indicated for the majority of extremity fractures and certain soft tissue injuries such as reduced joint dislocations (Table 95-2). Splint placement is also warranted when there is clinical evidence for a fracture despite equivocal or negative plain radiographs. In some cases, fractures that are not visible on the initial radiographs may become visible on repeat imaging performed several days to weeks later.

Table 95-2.

Recommended method of immobilization for common fractures seen in the ED.


Posterior Leg Splint

This splint extends along the posterior aspect of the leg from the toes to just below the knee (short leg) or to the middle of the thigh (long leg) (Figure 95-1). Fractures at the knee (ie, ...

Pop-up div Successfully Displayed

This div only appears when the trigger link is hovered over. Otherwise it is hidden from view.