Unverified80% confidenceDecision RuleTime unknown

长度选择：单个关节包扎需至少4.5m，全腿或反复缠绕加压需4.5-5m；短卷(1-2m)仅够手指或小面积，反复缠绕层数不足压力不均

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Unverified长度选择：小腿/手臂固定选4.5m，大腿/躯干选10m，单次缠绕加压需2-3圈重叠，长度不足会导致固定圈数不够而松脱90% similar Unverified展开长度约2.7米，固定成人下肢大关节时单卷可能不够用，建议按部位提前备足数量：上肢一般需2-3卷，下肢需4-6卷88% similar Unverified踝部预防性固定推荐宽度5cm的支撑贴配合3.8cm的锚定/闭合贴，长度按'足底一圈+小腿锚定两圈+八字八圈'计算，单次约需2.5-3米，选整卷≥10米规格更经济86% similar

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