[KongchangAI]
Unverified80% confidenceDecision RuleTime unknown

颈椎牵引器角度可调是核心指标:前屈15-20度牵引对椎间孔扩张最有效,无角度调节的纯垂直牵引效果差且易引起眩晕

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80%
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Long-term
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