Ankle Fracture Splints: Types, Indications & Selection Guide

Splint choice depends on fracture stability, swelling, weight-bearing status, and patient factors. A healthcare professional determines the best option.

Common Splint Types

Type	Description	Typical Use
Aircast / Walking Boot	Semi-rigid shell with air cells; allows controlled motion	Stable fractures, post-op protection, after initial swelling subsides
Rigid Splint (Plaster/Fiberglass)	Custom-molded, fully immobilizing	Unstable fractures, pre-surgical holding, significant displacement risk
Ankle Brace (Lace-up / Hinged / Sleeve)	Adjustable support; less rigid than splints	Mild fractures, sprains, chronic instability, return-to-sport
Posterior Splint	Rigid, applied to back of leg/foot; limits plantar/dorsiflexion	Achilles injuries, unstable ankle fractures, post-op
Stirrup Splint	U-shaped rigid frame cupping heel; medial/lateral uprights	Severe sprains, fractures needing medial/lateral control

Selection Factors

• Fracture pattern (Weber A/B/C, Lauge-Hansen)
• Soft tissue swelling (compartment syndrome risk)
• Weight-bearing restrictions (NWB, PWB, WBAT)
• Patient compliance, comfort, skin integrity
• Need for wound access / surgical planning

Always follow your orthopedist's or ER physician's specific orders. Improper splinting can cause pressure sores, stiffness, or malunion.