What do systematic reviews say?

Ankle brace vs rigid cast

It is very uncertain whether ankle brace changes number of children experiencing adverse outcomes at 4 weeks compared with rigid cast (very low certainty).

• Interventions for treating ankle fractures in children 2016 · Cochrane Headline outcomes only
  RR 2 [0.83, 4.81]
  1 study · 40 participants
  Very low