Long leg posterior splint

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  • Also known as a "posterior knee splint"


  • Temporary immobilization for knee injuries requiring rapid intervention, in the absence of commercial knee immobilizers.
  • Angulated fractures
  • Pediatric femoral shaft fractures


Long leg posterior splint

Splint Application General Procedure

  • Assess pre-procedure neurovascular status (i.e., distal pulse, motor, and sensation) [1]
  • Measure and prepare the splinting material
    • May use contralateral extremity if easier
    • Most splints use a width slightly greater than the diameter of the limb
  • Apply stockinette (if applicable)
    • Extend 2" beyond estimated the splinting material length
  • Apply padding (if applicable)
    • Use 2–3 layers over the area to be splinted / between digits (when applicable)
    • Add an extra 2–3 layers over bony prominences
  • Apply splinting material
    • Lightly moisten the splinting material.
    • Place as appropriate to specific splint type
    • Once finished, if applicable fold the ends of stockinette back over the splinting material if there is excess
  • Apply elastic bandaging (e.g., ace wrap)
  • While still wet
    • May further mold the splint to the desired shape
    • Maintain position until splint material has hardened
  • Re-check and document repeat neurovascular status

Splint-Specific Details

  • Apply padding and splint material as shown in figure
  • Splint course:
    • Start just inferior to buttocks crease
    • Down the posterior leg
    • End approximately 6cm above the malleoli
  • Key anatomic positions
    • Knee should be kept at 5 degrees flexion
    • Foot in slight plantarflexion

See Also


  1. Splints and Casts: Indications and Methods. http://www.aafp.org/afp/2009/0901/p491.html Accessed April 5, 2017