Unverified80% confidenceDecision RuleTime unknown
尺寸适配需按实际关节围度而非衣服码数选择，膝盖护具应测量髌骨上下各15cm处围度，过松加热面贴合不良、过紧影响血液循环，多数品牌提供S/M/L对应具体厘米数
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80%
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Long-term
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Unverified护具尺寸不能只看S/M/L，需按品牌尺码表实测周长：膝护具量髌骨中心上方15cm大腿围，踝护具量脚踝最细处，误差超过±2cm会导致支撑失效或血液循环受阻84% similarUnverified选购时务必量围度而非看S/M/L：膝套量髌骨中心上下15cm处腿围，踝套量踝骨最细处，围度差1-2cm就应换尺码，压缩产品尺码偏大等于失去压缩功能83% similarUnverified护具尺寸测量看髌骨上方15cm大腿围而非膝围，缠绕式护具偏差容忍度高，套筒式必须精准否则要么勒血栓要么滑脱81% similarUnverified尺码选择以髌骨中心上方15cm处大腿围为准，多数品牌以此分S/M/L，过紧会在膝窝处形成勒痕并影响回流，可弯曲膝盖测试是否卡顿80% similarUnverified选码看膝盖上方约15cm处大腿围（而非膝盖围），多数品牌尺码表以此为准；量错会导致过紧勒血或过松下滑80% similar
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