Unverified80% confidenceTradeoffTime unknown

预制弧度夹板（如腕关节、踝关节解剖型）能贴合关节生理曲度，适合特定部位固定；但骨折急救时肢体处于畸形位，强行套用预制弧度可能加重损伤，通用直板+可塑形材料更安全

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